Question 1

Which of the following is NOT a primary function of the skeletal system?

Accepted Answer

Production of hormones for metabolism

Question 2

A patient suffers a fracture to the diaphysis of their femur. Which of the following best describes the diaphysis?

Accepted Answer

The shaft of a long bone that houses the medullary cavity with yellow bone marrow

Question 3

Which bone type is the vertebra classified as?

Accepted Answer

Irregular bone

Question 4

A child’s X-ray shows a visible epiphyseal plate in the femur. What does this indicate?

Accepted Answer

The child is still growing and the bone can lengthen further

Question 5

Which of the following correctly matches the bone marking with its function?

Accepted Answer

Foramen: opening for nerves and blood vessels

Question 6

Which joint type is most movable and structurally classified as synovial?

Accepted Answer

Shoulder joint

Question 7

A patient is unable to abduct their arm at the shoulder. Which movement is impaired?

Accepted Answer

Moving the arm away from the midline of the body

Question 8

Which of the following best describes the role of osteoclasts in bone tissue?

Accepted Answer

Break down bone matrix, releasing calcium into the blood

Question 9

Which of the following is a correct statement about the structure of an osteon in compact bone?

Accepted Answer

It consists of concentric lamellae surrounding a central canal containing blood vessels

Question 10

Which of the following best explains why females generally have a wider pelvic girdle than males?

Accepted Answer

To facilitate childbirth by providing a larger birth canal

Question 11

Which muscle type is both striated and under voluntary control?

Accepted Answer

Skeletal muscle

Question 12

During muscle contraction, which ion is released from the sarcoplasmic reticulum to trigger the sliding filament mechanism?

Accepted Answer

Calcium ($$Ca^{2+})$$

Question 13

Which of the following best describes the function of acetylcholine at the neuromuscular junction?

Accepted Answer

It acts as a neurotransmitter to stimulate muscle fiber contraction

Question 14

A muscle that opposes the action of the prime mover is called the:

Accepted Answer

Antagonist

Question 15

Which of the following best describes the perimysium?

Accepted Answer

Connective tissue that surrounds a fascicle (group of muscle fibers)

Question 16

Which of the following is a correct example of a synarthrosis?

Accepted Answer

Suture between skull bones

Question 17

A patient with osteoporosis is at increased risk for fractures because:

Accepted Answer

Osteoclast activity exceeds osteoblast activity, leading to bone resorption

Question 18

Which of the following best describes the function of the T-tubules in muscle fibers?

Accepted Answer

They transmit the action potential deep into the muscle fiber

Question 19

Which of the following is a correct statement about the difference between male and female skeletons?

Accepted Answer

Females have a wider pelvic inlet and more flexible coccyx

Question 20

A 10-year-old child fractures their femur, but the bone heals rapidly and continues to grow in length. Which structure is responsible for this continued growth?

Accepted Answer

Epiphyseal plate

Anatomy & Physiology Study Notes: Skeletal and Muscular Systems

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