Chapter 11

Question 1

Parallel Muscles

Answer 1

fascicles are parallel to the long axis of the muscle (bicep)

Question 2

Convergent Muscles

Answer 2

fascicles extend over a broad area with one common attachment site, spread out like fam pulling in different direction (pectoral)

Question 3

Pennate Muscles

Answer 3

fascicles form a common angle with the tendon, feather like

Question 4

circular muscles

Answer 4

sphincters; fascicles are arranged around an opening, control the diameter of the opening

Question 5

antagonistic muscles

Answer 5

muscles that have opposing functions (bicep, triceps) example: biceps contract the forearm. muscles can’t push when relaxed, they exert no force. So, to extend the arm we need the “antagonist” to the biceps to extend it=triceps brachii

Question 6

synergistic muscles

Answer 6

muscles that work together to accomplish the same movement, work together to stabilize a joint for a precise movement

Question 7

prime mover

Answer 7

the muscle that does most of the work

Question 8

naming based on location

Answer 8

name indicates bone or body region where muscle is located: temporal is on temporal bone

Question 9

naming based on shape

Answer 9

name indicates the shape; deltoid

Question 10

naming based on size

Answer 10

name reflects relative size, like: major, minor, etc… adductor

Question 11

naming based on direction

Answer 11

name reflects direction of muscle fibers, like: rectus, oblique, transverse, etc… rectus abdomonis, eternal oblique

Question 12

naming based on origins

Answer 12

name reflects number of origin or “heads” of the muscle: bi, tri, quad, like the flexor cari radials