General Plan 3- Human Structure And Function
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Questions and Answers
- 1.
Groups of cells that are similar in structure, arranged in a characteristic pattern and specialized for the performance of specific tasks are...
Explanation
Tissues are groups of cells that have similar structure, are arranged in a characteristic pattern, and are specialized for specific tasks. They work together to perform specific functions in the body. Examples of tissues include muscle tissue, nerve tissue, and connective tissue.Rate this question:
- 2.
The study of tissue is called...
Explanation
Histology is the study of tissues, their structure, composition, and function. It involves examining tissues under a microscope to understand their organization and how they contribute to the overall functioning of organs and systems in the body. Histology plays a crucial role in medical and biological research, as it helps in diagnosing diseases, understanding the development of tissues, and evaluating the effects of treatments. By studying histology, scientists and medical professionals gain insights into the microscopic details of tissues, which can further enhance our understanding of the human body and improve healthcare practices.Rate this question:
- 3.
The four main groups of tissues are...
Explanation
The correct answer is epithelial, connective, muscle, nervous. These four groups of tissues are the main types of tissues found in the human body. Epithelial tissue covers the surfaces of organs and lines body cavities. Connective tissue provides support and connects different structures in the body. Muscle tissue is responsible for movement and contraction. Nervous tissue allows for communication and coordination within the body. Together, these four groups of tissues perform various functions and contribute to the overall structure and function of the body.Rate this question:
- 4.
This type of tissue covers surfaces, lines cavities, and forms glands. It also lines the intestinal tract, the respiratory and urinary passages, and blood vessels. It repairs/ reproduces quickly and produces mucous.
Explanation
Epithelial tissue is the correct answer because it covers surfaces, lines cavities, and forms glands. It is found in the intestinal tract, respiratory and urinary passages, and blood vessels. Epithelial tissue is known for its quick repair and reproduction abilities, and it produces mucous.Rate this question:
- 5.
This type of tissue supports and forms the framework of all parts of the body
Explanation
Connective tissue is the correct answer because it supports and provides structure to all parts of the body. It is responsible for connecting and binding different tissues and organs together, as well as providing strength and flexibility. Connective tissue also plays a crucial role in protecting and insulating organs, storing energy, and transporting nutrients and waste throughout the body. Overall, connective tissue is essential for maintaining the integrity and functionality of the body's various systems and structures.Rate this question:
- 6.
This type of tissue contracts and produces movement
Explanation
Muscle tissue is responsible for contracting and producing movement in the body. It is made up of specialized cells called muscle fibers, which have the ability to shorten and generate force. Muscle tissue is found throughout the body and is categorized into three types: skeletal, cardiac, and smooth. Skeletal muscle is attached to bones and allows voluntary movement, while cardiac muscle is found in the heart and contracts to pump blood. Smooth muscle is found in the walls of organs and blood vessels, and it helps with involuntary movements such as digestion and blood flow regulation.Rate this question:
- 7.
This type of tissue conducts nerve impulses
Explanation
The given question is asking for the type of tissue that conducts nerve impulses. The correct answer is "nervous" because the nervous tissue is responsible for transmitting electrical signals or nerve impulses throughout the body. This tissue consists of specialized cells called neurons that are capable of generating and transmitting electrical signals, allowing for communication between different parts of the body and the brain.Rate this question:
- 8.
The three shapes of epithelial tissue are
Explanation
Epithelial tissue is a type of tissue that covers the surfaces of the body and lines the cavities and organs. It is classified into three shapes: squamous, cuboidal, and columnar. Squamous epithelial cells are flat and thin, cuboidal cells are cube-shaped, and columnar cells are tall and rectangular. Each shape is adapted to perform specific functions. Squamous cells are involved in diffusion and filtration, cuboidal cells are involved in secretion and absorption, and columnar cells are involved in secretion and protection. These different shapes allow epithelial tissue to provide protection, absorption, and secretion in various parts of the body.Rate this question:
- 9.
In epithelial tissue, there are two different arrangements of its layers, _______ and ________
Explanation
Epithelial tissue is composed of layers of cells that line the surfaces and cavities of the body. The two different arrangements of these layers are simple and stratified. Simple epithelial tissue consists of a single layer of cells, which allows for efficient diffusion and absorption. It is found in areas where minimal protection is needed, such as the lining of blood vessels and air sacs in the lungs. Stratified epithelial tissue, on the other hand, consists of multiple layers of cells, providing more protection against mechanical stress. It is found in areas that require more protection, such as the skin and the lining of the mouth and esophagus.Rate this question:
- 10.
The extracellular material in connective tissue, containing varying amounts of water, fibers, and hard materials is called...
Explanation
Connective tissue is composed of cells and an extracellular matrix. The matrix is the non-living component that surrounds and supports the cells. It contains water, fibers, and hard materials, providing structural integrity and support to the tissue. The matrix also plays a crucial role in regulating cell behavior and tissue function. Therefore, the correct answer for the given question is "matrix."Rate this question:
- 11.
Connective tissue is classified by its degree of hardness or firmness...name the four types
Explanation
Connective tissue is a type of tissue that connects, supports, and protects different structures in the body. It is classified based on its degree of hardness or firmness. Soft connective tissue refers to tissues that are flexible and pliable, such as adipose tissue. Fibrous connective tissue is composed of dense collagen fibers and provides strength and support, like tendons and ligaments. Hard connective tissue, including bone and cartilage, is rigid and provides structural support. Liquid connective tissue refers to blood and lymph, which circulate throughout the body.Rate this question:
- 12.
This type of connective tissue is held together with semi-liquid material between the cells and contains adipose and areolar tissue.
Explanation
Soft connective tissue is held together with semi-liquid material between the cells and contains adipose and areolar tissue. This type of tissue is characterized by its flexibility and cushioning properties. It is found in various parts of the body, such as beneath the skin, around organs, and between muscles. Soft connective tissue provides support, protection, and insulation, as well as allowing for movement and flexibility. Adipose tissue, which is a type of soft connective tissue, stores energy in the form of fat, while areolar tissue provides structural support and helps to hold organs in place.Rate this question:
- 13.
This type of soft connective tissue contains cells that are able to store large amounts of fat, used as a reserve energy supply for the body. It also acts as a heat insulator and as protective padding for organs and joints.
Explanation
Adipose tissue is a type of soft connective tissue that contains cells called adipocytes, which specialize in storing large amounts of fat. This fat serves as a reserve energy supply for the body, providing fuel when needed. Additionally, adipose tissue acts as a heat insulator, helping to regulate body temperature, and it also provides protective padding for organs and joints, cushioning them against impact and reducing the risk of injury.Rate this question:
- 14.
This type of soft connective tissue is a loose form of connective tissue, and is found in membranes around vessels and organs, between muscles, and under the skin. It is the most common type of connective tissue in the body and contains cells and fibers in a very loose jellylike background material.
Explanation
Areolar tissue is a loose form of connective tissue that can be found in various parts of the body, such as membranes around vessels and organs, between muscles, and under the skin. It is the most common type of connective tissue and is characterized by its loose arrangement of cells and fibers in a jelly-like background material.Rate this question:
- 15.
This type of connective tissue is densely packed with fibers that give strength and flexibility.
Explanation
Fibrous connective tissue is densely packed with fibers that provide strength and flexibility. This type of tissue is composed of collagen fibers, which are arranged in a parallel or irregular pattern. The abundance of fibers allows for resistance to tension and stretching, making it ideal for providing support to various structures in the body. Fibrous connective tissue is commonly found in tendons, ligaments, and the dermis of the skin. It plays a crucial role in maintaining the structural integrity and function of these tissues.Rate this question:
- 16.
The main type of fiber is...
Explanation
Collagen is the main type of fiber in the human body. It is a protein that provides structure and support to various tissues such as skin, bones, tendons, and ligaments. Collagen fibers are strong and flexible, allowing them to contribute to the strength and elasticity of these tissues. They help maintain the integrity and function of organs and structures, making collagen a crucial component in the body's overall structure and function.Rate this question:
- 17.
The cells that produce the fibers in connective tissue are found in ligaments, tendons, and the capsules around certain organs. What are these cells called?
Explanation
Fibroblasts are the cells that produce the fibers in connective tissue. They are found in ligaments, tendons, and the capsules around certain organs. These cells play a crucial role in maintaining the structural integrity of the connective tissue by synthesizing and secreting extracellular matrix components such as collagen, elastin, and proteoglycans. Fibroblasts are responsible for the repair and regeneration of connective tissue after injury or damage.Rate this question:
- 18.
What are the three types of fibrous connective tissue?
Explanation
The three types of fibrous connective tissue are fascia, tendons, and ligaments. Fascia is a thin sheet of connective tissue that surrounds and supports muscles, organs, and other structures. Tendons are tough bands of connective tissue that attach muscles to bones, allowing for movement. Ligaments are also tough bands of connective tissue, but they connect bones to other bones, providing stability and strength to joints.Rate this question:
- 19.
This type of fibrous connective tissue covers muscles
Explanation
Fascia is a type of fibrous connective tissue that covers muscles. It forms a protective layer around the muscles, providing support and structure. Fascia helps to hold muscles in place and allows them to move smoothly against each other. It also plays a role in transmitting forces generated by muscle contractions. Overall, fascia acts as a protective sheath for muscles, aiding in their function and preventing injury.Rate this question:
- 20.
This type of fibrous connective tissue connects muscle to bone
Explanation
Tendons are a type of fibrous connective tissue that connect muscle to bone. They are composed of collagen fibers and are responsible for transmitting the force generated by the muscle to the bone, allowing movement to occur. Tendons are strong and flexible, enabling them to withstand the tension and stress placed on them during movement. Without tendons, muscles would not be able to effectively move bones, resulting in impaired mobility.Rate this question:
- 21.
This type of fibrous connective tissue connects bone to bone
Explanation
Ligaments are a type of fibrous connective tissue that connects bone to bone. They are strong and flexible, providing stability and support to joints. Ligaments help to hold the bones in proper alignment and prevent excessive movement or dislocation. They also play a crucial role in maintaining the integrity of the joints and preventing injuries.Rate this question:
- 22.
This type of connective tissue has a very firm consistency and is hardened by minerals in the matrix
Explanation
Hard connective tissue refers to a type of connective tissue that has a very firm consistency. It is hardened by the presence of minerals in its matrix. This hardness is due to the deposition of calcium salts, such as calcium phosphate, which gives the tissue its rigid and solid nature. Examples of hard connective tissue include bone and dentin.Rate this question:
- 23.
What are the two types of hard connective tissue
Explanation
Cartilage and bone are the two types of hard connective tissue. Cartilage is a flexible and rubbery tissue that provides support and cushioning between bones. It is found in areas such as the nose, ears, and joints. On the other hand, bone is a rigid and dense tissue that forms the skeleton of the body. It provides structural support, protects internal organs, and allows for movement. Both cartilage and bone play crucial roles in maintaining the structure and function of the body.Rate this question:
- 24.
This type of hard connective tissue is used as a shock absorber and as a bearing surface that reduces friction between moving parts. It is found at the ends of long bones, between segments of the spine, tip of nose, outer ear, parts of the larynx and trachea.
Explanation
Cartilage is a type of hard connective tissue that serves as a shock absorber and reduces friction between moving parts. It is found in various parts of the body such as the ends of long bones, segments of the spine, tip of nose, outer ear, parts of the larynx, and trachea. This explanation highlights the characteristics and locations of cartilage, providing a clear understanding of why it is the correct answer.Rate this question:
- 25.
What is the name of the tissue which bones are made up of?
Explanation
The tissue that bones are made up of is called osseous. Osseous tissue is a specialized connective tissue that provides support, protection, and strength to the skeletal system. It is composed of cells called osteocytes, which are embedded in a matrix of collagen fibers and calcium salts. This combination gives bones their hardness and durability, allowing them to withstand mechanical stress and provide a framework for the body.Rate this question:
- 26.
Within the bones are nerves, blood vessels, bone-forming cells, and a special form of tissues in which blood cells are manufactured. What is the name of this special form of tissue?
Explanation
Bone marrow is the correct answer because it is the special form of tissue found within the bones where blood cells are produced. It contains nerves, blood vessels, and bone-forming cells, making it an essential component of the skeletal system.Rate this question:
- 27.
True or False- Bone is much like cartilage until it becomes impregnated with salts of calcium and phosphorus making it solid and hard.
Explanation
Bone is initially similar to cartilage in terms of its composition and flexibility. However, it becomes solid and hard when it becomes impregnated with salts of calcium and phosphorus. These minerals give bone its strength and rigidity, allowing it to provide support and protection to the body. Therefore, the statement that bone is much like cartilage until it becomes impregnated with calcium and phosphorus salts is true.Rate this question:
- 28.
This type of connective tissue is composed of blood and lymph, and is suspended in a fluid environment.
Explanation
The given correct answer, "liquid," accurately describes the connective tissue composed of blood and lymph. Blood and lymph are both fluid components of the body, and this connective tissue is suspended in a fluid environment. Therefore, the term "liquid" is an appropriate description for this type of connective tissue.Rate this question:
- 29.
This tissue is designed to produce movement by contraction of its cells
Explanation
Muscle tissue is specialized to generate movement by contracting its cells. It is composed of long, cylindrical cells called muscle fibers that have the ability to contract and relax. These contractions produce force and allow for various types of movement, such as the movement of limbs, organs, and even the beating of the heart. Muscle tissue can be found throughout the body, including skeletal muscles, smooth muscles, and cardiac muscles.Rate this question:
- 30.
The cells which produce movement in muscleare long and threadlike. What are these cells called?
Explanation
Muscle fibers are the long and threadlike cells responsible for producing movement in muscles. These cells contain specialized proteins that allow them to contract and relax, generating the force needed for muscle movement. Muscle fibers are organized into bundles called fascicles, which make up the overall structure of a muscle. Each muscle fiber is capable of generating its own force, and when many fibers work together, they can produce powerful and coordinated movements.Rate this question:
- 31.
What are the three types of muscle tissues?
Explanation
The three types of muscle tissues are skeletal, cardiac, and visceral. Skeletal muscles are attached to bones and responsible for voluntary movements. Cardiac muscles are found in the heart and responsible for pumping blood. Visceral muscles are found in the walls of organs and blood vessels, and they are responsible for involuntary movements such as digestion and blood vessel constriction.Rate this question:
- 32.
This type of muscle tissue is voluntary and striated, and works with tendons and bones to move the body
Explanation
Skeletal muscle tissue is the correct answer because it is the only type of muscle tissue that is both voluntary and striated. Skeletal muscles are attached to tendons and bones, allowing them to contract and move the body. This type of muscle tissue is responsible for our ability to perform voluntary movements such as walking, running, and lifting objects.Rate this question:
- 33.
This type of muscle tissue is involuntary, smooth, and non-striated. It forms the walls of the organs, except the heart, blood vessels, especially the organs that need to expand and contract and is also at the base of each body hair.
Explanation
Visceral muscle tissue is involuntary, smooth, and non-striated. It is found in the walls of organs (except the heart) and blood vessels. This type of muscle tissue is responsible for the contraction and relaxation of organs, allowing them to expand and contract as needed. It is also found at the base of each body hair.Rate this question:
- 34.
This type of muscle tissue is involuntary and makes up the walls of the heart
Explanation
Cardiac muscle tissue is a type of muscle tissue that is involuntary, meaning it cannot be consciously controlled. It is found exclusively in the walls of the heart. This type of muscle tissue is specialized to contract and relax rhythmically, allowing the heart to pump blood throughout the body. It has unique features such as intercalated discs, which allow for synchronized contractions of cardiac muscle cells. Due to its location and function, cardiac muscle tissue plays a crucial role in maintaining the circulation of blood and ensuring the proper functioning of the heart.Rate this question:
- 35.
The muscle that makes up the walls of the heart is called the...
Explanation
The correct answer is myocardium. The myocardium is the muscular layer of the heart that is responsible for contracting and pumping blood throughout the body. It is composed of specialized cardiac muscle cells that are interconnected and work together to create the force needed for the heart to beat. The myocardium is thicker in the left ventricle compared to the other chambers of the heart, as it needs to generate more force to pump oxygenated blood to the rest of the body.Rate this question:
- 36.
This type of tissue is the communication system and is made up of the brain, spinal cord, and nerves.
Explanation
The correct answer is "nervous". The question is asking for the type of tissue that serves as the communication system in the body and is made up of the brain, spinal cord, and nerves. The nervous tissue is responsible for transmitting electrical signals and coordinating the body's responses to various stimuli. It is composed of specialized cells called neurons that can transmit signals rapidly over long distances. The brain, spinal cord, and nerves are all part of the nervous system, which controls and regulates body functions.Rate this question:
- 37.
This specialized nerve cell consists of a body plus small branches called fibers. What is the name of this nerve cell?
Explanation
A neuron is a specialized nerve cell that consists of a body and small branches called fibers. Neurons are the basic building blocks of the nervous system and are responsible for transmitting electrical signals throughout the body. They play a crucial role in processes such as sensory perception, motor control, and cognitive function.Rate this question:
- 38.
The fibers that carry nerve impulse to the nerve body are called...
Explanation
Dendrites are the fibers that carry nerve impulses to the nerve body. They receive signals from other neurons and transmit them towards the cell body. Dendrites play a crucial role in the transmission of information within the nervous system, as they receive input from multiple sources and integrate these signals to determine whether to generate an action potential. Therefore, dendrites are responsible for the initial processing of incoming signals and are essential for the proper functioning of neurons.Rate this question:
- 39.
A single fiber that carries impulses away from the nerve cell body is called an..
Explanation
An axon is a long, slender projection of a nerve cell that carries electrical impulses away from the cell body. It is responsible for transmitting information to other neurons, muscles, or glands. The axon is covered by a myelin sheath, which helps to insulate and speed up the conduction of the electrical signals. The axon is a crucial component of the nervous system and plays a vital role in transmitting signals throughout the body.Rate this question:
- 40.
Neurons can or cannot reproduce
Explanation
Neurons cannot reproduce because they are post-mitotic cells, meaning they have lost the ability to divide and generate new cells. Unlike other cells in the body, neurons do not undergo cell division and cannot replicate themselves. This is one of the reasons why brain and spinal cord injuries can be so debilitating, as damaged neurons are unable to be replaced or repaired by the body's natural processes.Rate this question:
- 41.
A bundle of nerve cell fibers held together with connective tissue that surround a neuron to give it support is called
Explanation
Neuroglia is the correct answer because it refers to a bundle of nerve cell fibers that are held together with connective tissue and provide support to neurons. Neuroglia, also known as glial cells, are non-neuronal cells that make up the majority of cells in the central nervous system. They play a crucial role in maintaining the structure and function of neurons, as well as providing support, insulation, and protection to the nervous system.Rate this question:
- 42.
Neuroglia can or cannot reproduce
Explanation
Neuroglia, also known as glial cells, are non-neuronal cells that provide support and protection to neurons in the central nervous system. They have the ability to reproduce, unlike neurons which are incapable of cell division. Neuroglia can undergo cell division and generate new glial cells in response to injury or disease, contributing to the repair and regeneration of the nervous tissue. This reproductive capacity of neuroglia enables them to play a crucial role in maintaining the overall health and functioning of the nervous system.Rate this question:
- 43.
Tumors of the nervous system are called...
Explanation
Gliomas are tumors that occur in the nervous system. They originate from glial cells, which are supportive cells in the brain and spinal cord. Gliomas can occur in different parts of the nervous system, including the brain and the optic nerves. They can be benign or malignant and can cause various symptoms depending on their location and size. Treatment options for gliomas include surgery, radiation therapy, and chemotherapy.Rate this question:
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