Exercise Physiology Week 8 Lecture 1 (First
Chapter for Exam 3) Questions With
Complete Solutions
skeletal muscle types
types of skeletal muscle fibers
____ muscle contains ___ main types of fibers that
differ in ____ characteristics
primary ______ used to produce ____
type of motor neuron ____
their maximal _____ of shortening
,the proportions of each type of muscle fiber ___
from muscle to muscle and from ____ to ____
skeletal
two
three
mechanisms
innervation
shortening
velocities
vary
person to person
fiber type overview
______- slow-twitch, oxidative (SO)
(S) slow fatigue resistant
red (a lot of mitochondria, myoglobin, blood
vessels)
_______- fast -twitch, oxidative-glocolytic (FOG)
(FR) fast fatigue resistant
,red (a lot of mitochondria, myoglobin, and blood
vessels)
______- fast-twitch, glycolytic (FG)
(FF) fast fatigable
white in color (few mitochondria and blood vessels,
low myoglobin)
anaerobic movements for short duration
type 1
type II a
type IIb and IIx
types of skeletal muscle fibers
most muscles contain a ___ of fiber types
proportion of fiber type depends on ___ ____ of
muscle
-____ ____ ____ have higher proportion of postural,
slow oxidative fibers
-___ _____ _____ muscles have higher proportion of
fast glycolytic fibers
characteristics ____ be altered by exercise
, mixture
usual action
neck and back
shoulder and arm
CAN
fast-twitch fibers (type II)
exhibit ___ characteristics:
high ____ for electrochemical transmission of ___
_____
_____ myosin ATPase activity
____ Ca2+ release and uptake by _____
sacroplasmic reticulum
____ rate of crossbridge _____
Chapter for Exam 3) Questions With
Complete Solutions
skeletal muscle types
types of skeletal muscle fibers
____ muscle contains ___ main types of fibers that
differ in ____ characteristics
primary ______ used to produce ____
type of motor neuron ____
their maximal _____ of shortening
,the proportions of each type of muscle fiber ___
from muscle to muscle and from ____ to ____
skeletal
two
three
mechanisms
innervation
shortening
velocities
vary
person to person
fiber type overview
______- slow-twitch, oxidative (SO)
(S) slow fatigue resistant
red (a lot of mitochondria, myoglobin, blood
vessels)
_______- fast -twitch, oxidative-glocolytic (FOG)
(FR) fast fatigue resistant
,red (a lot of mitochondria, myoglobin, and blood
vessels)
______- fast-twitch, glycolytic (FG)
(FF) fast fatigable
white in color (few mitochondria and blood vessels,
low myoglobin)
anaerobic movements for short duration
type 1
type II a
type IIb and IIx
types of skeletal muscle fibers
most muscles contain a ___ of fiber types
proportion of fiber type depends on ___ ____ of
muscle
-____ ____ ____ have higher proportion of postural,
slow oxidative fibers
-___ _____ _____ muscles have higher proportion of
fast glycolytic fibers
characteristics ____ be altered by exercise
, mixture
usual action
neck and back
shoulder and arm
CAN
fast-twitch fibers (type II)
exhibit ___ characteristics:
high ____ for electrochemical transmission of ___
_____
_____ myosin ATPase activity
____ Ca2+ release and uptake by _____
sacroplasmic reticulum
____ rate of crossbridge _____
