Module 1

Question 1

Found in the walls of blood vessels, the lining of the gastrointestinal tract, uterine walls and walls of respiratory passages

Answer 1

Smooth Muscles

Question 2

Innervated with an intrinsic nervous system unique to the heart that is specialized for
generating highly controlled rhythmic contractions

Answer 2

Cardiac Muscle

Question 3

It comprises the bulk of muscle in the body and its contraction is controlled by nerves emanating from the spinal cord

Answer 3

Skeletal Muscle

Question 4

What are the three basic structural units of skeletal muscles?

Answer 4

Muscle cell, Myocyte, and Myofiber

Question 5

Individual fibers of myofiber can be what size in diameter?

Answer 5

1-100 micrometer

Question 6

This is a specialized organelle that constitutes the contractile apparatus of the muscle fiber

Answer 6

Myofibrils

Question 7

This is the basic unit of the myofibril

Answer 7

Sarcomere

Question 8

This organizes individual fibers into bundles called muscle fascicles.

Answer 8

Perimysium

Question 9

This encases multiple muscle fascicles, effectively bundling them together to form the whole muscle

Answer 9

Epimysium

Question 10

Plays an important role in muscle hypertrophy, serving as
a local source of DNA

Specialized mononucleated pre-muscle cells that can reside between endomysium
and sarcolemma

Answer 10

Satellite cells

Question 11

Activates a group of muscle cells
which results in contraction of the fibers, thus facilitating
movements

Answer 11

Motor neurons