ch.2 neural

Question 1

muscles work in groups rather than independently to achieve= joint motion

Answer 1

aggregate muscle action

Question 2

a factor in the ability of a muscle to exert force

Answer 2

cross-section diameter

Question 3

flat, fusiform, strap muscles, radiate, sphincter(circular)

Answer 3

parallel muscles

produce a greater range of movement

Question 4

unipennate, bipennate, and multipennate

Answer 4

pennate muscles

between fibers and tendon

Question 5

deltoid, rhomboid

Answer 5

shape

Question 6

external abdominal oblique

Answer 6

direction of fibers

Question 7

spindle-shape with a central belly

brachialis and brachioradialis

Answer 7

fusiform

Question 8

is the central, fleshy portion of the muscle

Answer 8

gaster

Question 9

facial tissues forms a____ to retain tendons close to the body

ex: around joints wrist and ankle

Answer 9

retinaculum

Question 10

static contraction developing

tension to maintain the joint angle constant

Answer 10

isometric contraction

Question 11

dynamic contraction

varying the degree of tension

Answer 11

isotonic contraction

Question 12

muscle developing active tension as it SHORTENS
movement against gravity

overcome the applied resistance

Answer 12

concentric contraction

Question 13

muscle lengthening under active tension when muscle lessens in tension

Answer 13

eccentric contraction

Question 14

may use any or all types of contractions

dynamic exercise
concentric and or eccentric muscle contractions

Answer 14

isokinetics

Question 15

muscular and the nerves system working together

Answer 15

voluntary muscles