muscle control 17

Question 1

Muscle control

Question 2

motor units X and Y

Answer 2

X comes first and Y is added if more power is needed

Question 3

how does x always go before Y

Answer 3

X neurons has smaller cell bodies

Question 4

an equal stimulus can most easily generate an action potential in:

Answer 4

Postsynaptic motor neurons with small cell bodies

easier to activate an action potential

Question 5

Frequency increases

Answer 5

x activates to lift a pencil, y for medium weights, and Z for 1000 lbs

Question 6

Orderly recruitment of motor units

Question 7

isotonic contraction

Answer 7

Muscle is allowed to shorten as it contracts. Measure degree of shortening.

actually moving

Question 8

Isometric Contraction

Answer 8

Muscle not allowed to shorten. Measure tension developed.

no movement, but builds force until I get into a movement

Question 9

White meat Dark meat

Answer 9

Dark: high mitochondrial content
white: low mitochondrial content

Question 10

Type 1
Type 11a
Type 11x

Answer 10

fast and slow twitch muslces

Question 11

cheetah vs wolf