Anatomy and Physiology Musculoskeletal System 2

Question 1

Which bone forms the posterior portion of the hard palate?

Accepted Answer

Palatine bone

Answer

The palatine bone forms the posterior one-third of the hard palate, while the maxilla forms the anterior two-thirds.

Question 2

What is the term for the connective tissue sheath surrounding an individual muscle fascicle?

Accepted Answer

Perimysium

Answer

The perimysium is the connective tissue layer that surrounds each fascicle, a bundle of muscle fibers.

Question 3

Which cells are responsible for bone formation?

Accepted Answer

Osteoblasts

Answer

Osteoblasts synthesize and deposit the bone matrix (osteoid) and are the primary cells responsible for new bone formation.

Question 4

At what joint does the radius articulate with the carpal bones of the wrist?

Accepted Answer

Radiocarpal joint

Answer

The radiocarpal joint is the main wrist joint where the distal radius articulates with the proximal row of carpal bones.

Question 5

What is the functional unit of skeletal muscle contraction?

Accepted Answer

Sarcomere

Answer

The sarcomere is the basic contractile unit of skeletal muscle, extending from one Z-line to the next.

Anatomy and Physiology Practice Test