Please choose the best option for each part using the figure below. Part A. Fibe

ID: 3511379 • Letter: P

Question

Please choose the best option for each part using the figure below.

Part A. Fibers represented by a diamond would have relatively high _____ and are most likely from a motor unit within a _____.

a) oxidative capacity, soleus muscle

b) glycolytic capacity, superficial part of a gastrocnemius muscle

c) oxidative capacity, superficial part of a gastrocnemius muscle

d) glycolytic capacity, soleus muscle

e) oxidative capacity, deep part of a gastrocnemius muscle

Part B. Fibers represented by would be classified as ____ and are most likely from a motor unit within the _____.

a) fast twitch, deep part of a gastrocnemius muscle

b) slow twitch, superficial part of a gastrocnemius muscle

c) slow twitch, soleus muscle

d) fast twitch, superficial part of a gastrocnemius muscle

e) fast twitch, soleus muscle

Part C. Fibers represented by would have relatively high _____ and would likely contain _____.

a) oxidative capacity, type I myosin heavy chain

b) glycolytic capacity, type IIB myosin heavy chain

c) oxidative capacity, type IIA myosin heavy chain

d) glycolytic capacity, type I myosin heavy chain

e) oxidative capacity, type IIB myosin heavy chain

0 50 100 150 200 Twitch relaxation time (ms)

Part A The answer is high oxidative capacity in soleus i.e. option A

This is because mitochondrial enzyme activity is high.