1.
The occipital bone, hyoid, and sacrum are all part of the skeleton
Correct Answer
B. Axial
Explanation
The occipital bone, hyoid, and sacrum are all part of the axial skeleton. The axial skeleton includes the bones of the head, neck, and trunk of the body. The occipital bone is located at the back of the skull, the hyoid bone is in the neck, and the sacrum is at the base of the spine. These bones provide support and protection for the central nervous system and organs within the trunk.
2.
In the vertebral column of an adult, the sacrum consists of fused vertebrae, while the coccyx consists of fused vertebrae
Correct Answer
E. 5,4
Explanation
The answer 5,4 is correct because the sacrum in the vertebral column of an adult consists of 5 fused vertebrae, while the coccyx consists of 4 fused vertebrae.
3.
Which of the following bones make up the pelvic girdle
Correct Answer
E. Coxal bones
Explanation
The correct answer is Coxal bones. The pelvic girdle is made up of two coxal bones, also known as the hip bones. These bones are located on either side of the pelvis and are formed by the fusion of three bones - the ilium, ischium, and pubis. The pelvic girdle provides support and stability to the spine and forms the attachment point for the lower limbs. The scapulae and clavicles are part of the pectoral girdle, while the ribs and sternum form the thoracic cage, and the sacrum and coccyx are part of the vertebral column.
4.
All of the following structures are parts of the scapula, except
Correct Answer
D. Coronoid process
Explanation
The coronoid process is not a part of the scapula. The scapula is a triangular-shaped bone located in the upper back. It has various structures, including the coracoid process, acromion process, and glenoid cavity. The coracoid process is a hook-like projection on the anterior side of the scapula, while the acromion process is a bony projection that articulates with the clavicle. The glenoid cavity is a shallow socket that forms the shoulder joint. However, the coronoid process is a structure found in the ulna bone of the forearm, not in the scapula.
5.
If a classmate asked you to point to your alveolar process, to which bone(s) could you point
Correct Answer
A. Maxilla or mandible
Explanation
The alveolar process refers to the part of the maxilla or mandible that contains the sockets for the teeth. Therefore, if a classmate asked you to point to your alveolar process, you would point to either the maxilla or mandible.
6.
Which 2 bones (or processes of these bones) make up the hard palate
Correct Answer
D. Maxilla and palatine bone
Explanation
The hard palate is the bony structure that forms the roof of the mouth. It is composed of two bones: the maxilla and the palatine bone. The maxilla is the upper jawbone and forms the majority of the hard palate, while the palatine bone is a small, L-shaped bone located behind the maxilla. Together, these two bones create the hard palate, providing support and structure to the roof of the mouth.
7.
The supraorbital foramina are found of the bone, while the infraorbital foramina are located on the bones
Correct Answer
C. Frontal; Maxillary
Explanation
The supraorbital foramina are found on the frontal bone, while the infraorbital foramina are located on the maxillary bones.
8.
The greater tubercle is found in the joint, while the greater trochanter is found in the joint
Correct Answer
C. Shoulder; hip
Explanation
The greater tubercle is a bony prominence found on the humerus bone of the upper arm, specifically in the shoulder joint. The greater trochanter, on the other hand, is a bony prominence found on the femur bone of the thigh, specifically in the hip joint. Therefore, the correct answer is "Shoulder; hip".
9.
What is the significance of the perpendicular plate of the ethmoid bone
Correct Answer
E. It forms part of the nasal septum
Explanation
The perpendicular plate of the ethmoid bone is significant because it forms part of the nasal septum. The nasal septum is the structure that divides the nasal cavity into two separate chambers. It provides support and stability to the nose, helping to maintain its shape. Additionally, the nasal septum plays a role in directing the flow of air through the nasal passages, allowing for proper breathing and filtration of the air before it enters the respiratory system.
10.
Cervical vertebrae are unique in that they are the only vertebrae
Correct Answer
A. With transverse foramina
Explanation
Cervical vertebrae are unique because they are the only vertebrae that have transverse foramina. The transverse foramina are small holes on the sides of the vertebrae that allow for the passage of the vertebral arteries and veins. This feature is not present in any other vertebrae in the spine, making it a distinguishing characteristic of the cervical vertebrae.
11.
Which of the following structures is the most inferior on the femur
Correct Answer
C. Medial condyle
Explanation
The most inferior structure on the femur is the medial condyle. The term "inferior" refers to a position that is below or lower than another structure. In this case, the medial condyle is located at the lower end of the femur, while the other structures mentioned (lateral epicondyle, lesser trochanter, linea aspera, and greater trochanter) are either located higher up on the femur or are not relevant to the question.
12.
From your knowledge of skeletal terminology, what would be the most likely description of a structure called the "infraspinous fossa"
Correct Answer
B. A depression below the scapular spine
Explanation
The most likely description of a structure called the "infraspinous fossa" would be a depression below the scapular spine.
13.
Which of the following cell types is the most common type of bone cell, and is actually a mature bone cell encased in a lacuna
Correct Answer
C. Osteocyte
Explanation
Osteocytes are the most common type of bone cell and are mature bone cells encased in a lacuna. They are responsible for maintaining the bone tissue and play a crucial role in bone remodeling and repair. Osteoblasts are responsible for bone formation, chrondrocytes are cartilage cells, osteoprogenitor cells are bone stem cells, and osteoclasts are responsible for bone resorption.
14.
Which of the following bones is/are classified as (a) sesamoid bone
Correct Answer
B. Patella
Explanation
The patella is classified as a sesamoid bone. Sesamoid bones are small, round bones that are embedded within tendons, providing protection and improving the mechanical advantage of the muscles. The patella is the largest sesamoid bone in the body and is located in the tendon of the quadriceps muscle at the front of the knee joint. It helps to increase the leverage of the quadriceps muscle during knee extension and protects the knee joint from excessive forces. The other bones listed (carpals, parietal bones, scapula, tarsals) are not classified as sesamoid bones.
15.
Find the false statement below, if any, concerning bone tissue
Correct Answer
B. Spongy bone consists of osteons, while compact bone contains trabeculae
Explanation
The false statement is "Spongy bone consists of osteons, while compact bone contains trabeculae." In reality, compact bone consists of osteons, which are cylindrical structures made up of concentric layers of bone tissue surrounding a central canal. Spongy bone, on the other hand, contains trabeculae, which are thin columns and plates of bone tissue that form a mesh-like structure.
16.
Find the false statement below, if any, concerning the endochondral ossification process
Correct Answer
D. It involves bone formation between sheets of primitive connective tissue
Explanation
Endochondral ossification is the process of bone formation where bone develops from a cartilage model. It is the more common method of bone formation and is responsible for the development of long bones during fetal development. Additionally, healing bones also use this method of bone formation. However, the statement that it involves bone formation between sheets of primitive connective tissue is false. Endochondral ossification involves the replacement of cartilage with bone, not the formation between sheets of primitive connective tissue.
17.
The expanded end of a long bone is called the ; the covering of dense connective tissue that encloses the entire bone is called the
Correct Answer
E. EpipHysis; periosteum
Explanation
The expanded end of a long bone is called the epiphysis, while the covering of dense connective tissue that encloses the entire bone is called the periosteum.
18.
What effect do vitamins C, K and B12 have on bone health
Correct Answer
C. They stimulate protein synthesis, one of which is collagen
Explanation
Vitamins C, K, and B12 stimulate protein synthesis, including the production of collagen. Collagen is a major component of bone tissue and is responsible for its strength and structure. Therefore, by promoting protein synthesis, these vitamins contribute to the maintenance and improvement of bone health.
19.
All of the following would be likely to help strengthen the bones and increase bone density, except:
Correct Answer
A. Taking papathyroid hormone supplements
Explanation
Taking papathyroid hormone supplements would not likely help strengthen the bones and increase bone density. While getting some sunshine daily, drinking plenty of milk, and taking vitamin D supplements are all known to contribute to bone health, papathyroid hormone supplements may have negative effects on bone density.
20.
Which type of fracture is considered the most serious in children, since it sometimes results in the fractured bone eventually ending up longer or shorter than the corresponding bone on the other side of the body
Correct Answer
B. Epipyseal disks
Explanation
Epiphyseal disks are growth plates located at the ends of long bones in children. These plates are responsible for bone growth and can be easily injured. When a fracture occurs at the epiphyseal disk, it can disrupt bone growth and result in the fractured bone ending up longer or shorter than the corresponding bone on the other side of the body. This type of fracture is considered the most serious in children because it can have long-term consequences on bone development and may require specialized treatment to prevent growth abnormalities.
21.
What does the Wolff's law state
Correct Answer
E. A bone grows and remodels in response to the pHysical stresses place on it; therefore, varied exercise will lead to strong, heavy bones
Explanation
Wolff's law states that bones grow and remodel in response to the physical stresses placed on them. This means that when bones are subjected to exercise and physical activity, they adapt by becoming stronger and heavier. This is why varied exercise is important for maintaining strong and healthy bones.
22.
What is hematopoiesis
Correct Answer
D. Blood cell formation
Explanation
Hematopoiesis refers to the process of blood cell formation. It is the process by which new blood cells are produced in the body. This includes the formation of red blood cells, white blood cells, and platelets in the bone marrow. Hematopoiesis is essential for the body to maintain an adequate supply of blood cells, which are responsible for various functions such as oxygen transport, immune response, and blood clotting.