Myology and Overview of the Muscular System

Question 1

Muscle

Answer 1

Comprised of skeletal muscle tissue, blood vessels, and connective tissues, nerves

Question 2

Skeletal Muscle FIbers

Answer 2

Organized into fasicles
(Muscle w/ muscle fibers = belly)
(Visible connective tissue on the ends = connective tissues)

Question 2

Fascicle Arrangement

Answer 2

Parallel (simple), convergent (narrow attachment on one side, broad attachment on other), pennate (attachment at an angle to the tendon), circular

Question 3

Pennate Muscles

Answer 3

More cells than parallel, but shorter muscle cells and fascicles

Question 4

Muscle Attachments

Answer 4

Origin and Insertion

Question 5

Origin

Answer 5

More stable and proximal/medial on the body

Question 6

Insertion

Answer 6

More mobile and distally located attachment

Question 7

Synergists (action)

Answer 7

Muscles working in the same way (similar location and attachments)

Question 8

Antagonists (action)

Answer 8

Muscles working opposite one another

Question 9

Innervation

Answer 9

Nerves from predictable spinal cord segments providing stimulus to each muscle