Muscle Fibers

Question 1

Slow Twitch Muscle

Answer 1

Type I

Question 2

Intermediate fibers

Answer 2

Type IIa fibers

Question 3

Fast Twitch Fibers

Answer 3

Type IIb

Question 4

Anaerobic, maximum tension rapidly, easily fatigued, low number of capillaries, few mitochondria, low myoglobin, Hydrolyzes ATP quickly, for explosive power

Answer 4

Type IIb Fast Twitch Muscle Fibers

Question 5

Mostly aerobic, maximum tension more quickly than type 1, medium fatigue resistance, high # capilaries, many mitochondria, glycogen reserve, medium myoglobin, Hydrolyzes ATP at a medum rate, good for biking

Answer 5

Type IIa intermediate fibers

Question 6

High energy compound, created when a muscle is resting for fast twitch muscles, quick ATP, doesn’t need O2

Answer 6

creatine phosphate

Question 7

Provides a lot of ATP from breakdown of glucose, slow and intermediate twitch, requires O2, lots of ATP

Answer 7

cellular respiration

Question 8

Breaks down glucose, small amounts of ATP that does not use O2, fast twitch, Provides quick ATP. Not as much created per molecule. Produces lactic acid

Answer 8

Fermentation