Exam 3- muscle...

Question 1

Relaxation

Answer 1

Immediately after Ca++ is released, the SR begins actively pumping it back into the sacs
Ca++ is removed from the troponin molecules, stopping the contraction

Question 2

Rid fiber muscles

Answer 2

have more myoglobin
slower acting
more stamina
ex: postural muscles

Question 3

White fiber muscles

Answer 3

Have less myogloben
faster acting (darting motions)
less stamina
fingers, eyes

Question 4

Fascia

Answer 4

regular dense collagenous fibrous connective tissue
continuous with the periosteum, tendons and ligaments.
covers the muscle organs

Question 5

Fascicle

Answer 5

Group or cord of muscle fibers

Question 6

Epimysium

Answer 6

tough outer layer of connective tissue

Question 7

perimysium

Answer 7

middle layer of connective tissue

binds and connects individual fascicles

Question 8

Motor unit

Answer 8

Motor neuron plus the muscle fibers to which it attaches

Question 9

Twitch Contraction

Answer 9

Phases:
Latent Phase
Contraction Phase
Relaxation phase

Question 10

Tetanus

Answer 10

Smooth, sustained contraction.

Multiple wave summation