1.
The Axial Skeleton includes:
Correct Answer
D. Cranium, ribcage, spine
Explanation
The correct answer is cranium, ribcage, spine. The axial skeleton is composed of the bones that form the central axis of the body, including the skull (cranium), the ribcage, and the spine. These bones provide support and protection for vital organs such as the brain, heart, and lungs. The arms, legs, and pelvic girdle are part of the appendicular skeleton, which is responsible for movement and locomotion.
2.
The three types of rubs are True Ribs, False Ribs, and _____.
Correct Answer
A. Floating Ribs
Explanation
The three types of rubs are True Ribs, False Ribs, and Floating Ribs. True Ribs are directly attached to the sternum, False Ribs are indirectly attached to the sternum, and Floating Ribs are not attached to the sternum at all.
3.
The types of marrow are _____ and _____.
Correct Answer
C. Red and Yellow
Explanation
The types of marrow are red and yellow.
4.
The two types of bone are _____ and _____.
Correct Answer
B. Compact and Spongy
Explanation
The correct answer is "Compact and Spongy." Bones are composed of two main types of tissue: compact bone and spongy bone. Compact bone is dense and hard, making up the outer layer of most bones. It provides strength and support. Spongy bone, also known as cancellous or trabecular bone, is found inside the compact bone and is lighter and less dense. It contains a network of trabeculae, which gives it a spongy appearance. Spongy bone helps to reduce the weight of the skeleton and provides space for bone marrow.
5.
The sternum is also the _____.
Correct Answer
C. Breastbone
Explanation
The sternum is commonly known as the breastbone. It is a flat bone located in the center of the chest, connecting the ribs together. It plays a crucial role in protecting the heart, lungs, and major blood vessels.
6.
The sternum protects the heart, lungs, and _____ from damage.
Correct Answer
A. Major blood vessels
Explanation
The sternum is a flat bone located in the center of the chest. It acts as a protective shield for vital organs such as the heart and lungs. In addition to these organs, the sternum also protects major blood vessels that are crucial for the circulation of blood throughout the body. Therefore, the correct answer is major blood vessels.
7.
There are ____ bones in the body.
Correct Answer
B. 206
Explanation
The human body has 206 bones. This is the correct answer because the average adult human skeleton consists of 206 bones. These bones provide structure, support, and protection to the body. They also allow for movement and serve as attachment points for muscles.
8.
There are more bones in an adult body than a child's.
Correct Answer
B. False
Explanation
The statement is false because children have more bones than adults. This is because some of the bones in a child's body fuse together as they grow, resulting in a decrease in the total number of bones. Therefore, the number of bones in an adult body is actually less than the number of bones in a child's body.
9.
Red Marrow in large bones produces new blood cells.
Correct Answer
A. True
Explanation
The red marrow found in large bones is responsible for producing new blood cells. This is a true statement because red marrow contains stem cells that can differentiate into various types of blood cells, including red blood cells, white blood cells, and platelets. These blood cells are essential for carrying oxygen, fighting infections, and promoting clotting. Therefore, the red marrow plays a crucial role in maintaining a healthy blood supply in the body.
10.
Cranial and Facial bones create the skull.
Correct Answer
A. True
Explanation
The statement is true because the cranial and facial bones together form the structure of the skull. The cranial bones include the frontal, parietal, temporal, occipital, sphenoid, and ethmoid bones, which protect the brain. The facial bones, including the maxilla, mandible, zygomatic, nasal, and lacrimal bones, form the framework of the face and protect the sensory organs such as the eyes, nose, and mouth. Together, these bones provide support and protection for the brain and facial structures, making the statement true.