Question

+ ++ Mitochondrial content (arbitrary units) + x xx + x XOO to o 100 250 300 150 200 Twitch relaxation time (ms)

A Fibers represented by X would be classified as _____ and would have relatively high _____.

a) fast twitch, oxidative capacity

b) fast twitch, glycolytic capacity

c) slow twitch, oxidative capacity

d) slow twitch, glycolytic capacity

B Fibers represented by X would likely contain _____ and are most likely from a motor unit within the ______. Group of answer choices

a) type I myosin heavy chain, deep part of a gastrocnemius muscle

b) type IIA myosin heavy chain, soleus muscle

c) type IIB myosin heavy chain, superficial part of a gastrocnemius muscle

d) type IIA myosin heavy chain, deep part of a gastrocnemius muscle

e) type IIB myosin heavy chain, soleus muscle

C Fibers represented by (black diamond) would be classified as _____ and would likely contain ______. Group of answer choices

a)fast twitch, type I myosin heavy chain

b) slow twitch, type IIA myosin heavy chain

c) fast twitch, type IIA myosin heavy chain

d) slow twitch, type IIB myosin heavy chain e) slow twitch, type I myosin heavy chain

D Fibers represented by (black 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

E 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

Answer 1

A. Fibers represented by X would be classified as fast twitch and would have relatively high oxidative capacity

B. Fibers represented by X would likely contain and type IIA myosin heavy chain are most likely from a motor unit within the deep part of a gastrocnemius muscle . Group of answer choices

C. Fibers represented by (black diamond) would be classified as slow twitch and would likely contain type I myosin heavy chain. Group of answer choices

D.Fibers represented by (black diamond) would have relatively high oxidative capacity and are most likely from a motor unit within a deep part of a gastrocnemius muscle

E.dFibers represented by ○ would be classified as fast twitch and are most likely from a motor unit within the superficial part of a gastrocnemius muscle