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PHYSIOLOGY EXAM 4- MUSCLES, INTEGUMENT,
BONES, JOINTS, REPRODUCTION,
DEVELOPMENT
NEWLY FORMATTED DOCUMENT
Which skeletal muscle a. excitability
property is defined
by the following:
Muscle cells respond to
input by generating
electrical potentials.
a. excitability
b. contractility
c. elasticity
d. conductivity
Which skeletal muscle b. conductivity
property is defined
by the following:
Most muscle cells fire
action potentials.
a. excitability
b. conductivity
c. elasticity
d. extensibility
,2
Which skeletal muscle a. contractility
property is defined
by the following:
Muscle cells shorten
when stimulated.
a. contractility
b. conductivity
c. elasticity
d. extensibility
,3
Which skeletal muscle b. extensibility
property is defined
by the following:
Muscle cells can
stretch.
a. contractility
b. extensibility
c. elasticity
d. excitability
Which skeletal muscle d. elasticity
property is defined
by the following:
Muscle cells
spontaneously
shorten after being
stretched.
a. extensibility
b. contractility
c. conductivity
d. elasticity
The skeletal muscle becomes excitable when the
neurotransmitter reaches the receptor on the
sarcolemma and causes an action potential
Why is excitability of
along the sarcoplasm.
skeletal muscles a
vital function?
Excitability is the precursor to membrane
depolarization and eventual action potential
firing, tension development, and
contraction
, 4
Muscles fire action potentials in response
to depolarization of the sarcoplasm.
Why is conductivity of
Conductivity is also vitally important
skeletal muscles a
distributing action potentials across different
vital function?
muscle fibers and coordinating synchronized,
nonjerky muscle contractions and overall
smooth movements.
Why is contractility of It is the basis for all locomotion and life-
skeletal muscles a sustaining processes. It allows muscle tissue
vital function? to pull on its attachment points and shorten
with force
Why is extensibility of it is a vital component of total muscle function
skeletal muscle a vital because it allows for maximum length of both
function? activated and nonactivated msucles.
When the muscle relaxes and returns to its
normal resting length after being stretched, it
Why is elasticity of is using elasticity.. If the muscles did not
skeletal muscle a return to normal length after being stretched,
vital function? the muscles would not ever be in the best
resting position for optimal force
generation and it would be VERY hard to ever
move our muscles or generate any force at
all.
PHYSIOLOGY EXAM 4- MUSCLES, INTEGUMENT,
BONES, JOINTS, REPRODUCTION,
DEVELOPMENT
NEWLY FORMATTED DOCUMENT
Which skeletal muscle a. excitability
property is defined
by the following:
Muscle cells respond to
input by generating
electrical potentials.
a. excitability
b. contractility
c. elasticity
d. conductivity
Which skeletal muscle b. conductivity
property is defined
by the following:
Most muscle cells fire
action potentials.
a. excitability
b. conductivity
c. elasticity
d. extensibility
,2
Which skeletal muscle a. contractility
property is defined
by the following:
Muscle cells shorten
when stimulated.
a. contractility
b. conductivity
c. elasticity
d. extensibility
,3
Which skeletal muscle b. extensibility
property is defined
by the following:
Muscle cells can
stretch.
a. contractility
b. extensibility
c. elasticity
d. excitability
Which skeletal muscle d. elasticity
property is defined
by the following:
Muscle cells
spontaneously
shorten after being
stretched.
a. extensibility
b. contractility
c. conductivity
d. elasticity
The skeletal muscle becomes excitable when the
neurotransmitter reaches the receptor on the
sarcolemma and causes an action potential
Why is excitability of
along the sarcoplasm.
skeletal muscles a
vital function?
Excitability is the precursor to membrane
depolarization and eventual action potential
firing, tension development, and
contraction
, 4
Muscles fire action potentials in response
to depolarization of the sarcoplasm.
Why is conductivity of
Conductivity is also vitally important
skeletal muscles a
distributing action potentials across different
vital function?
muscle fibers and coordinating synchronized,
nonjerky muscle contractions and overall
smooth movements.
Why is contractility of It is the basis for all locomotion and life-
skeletal muscles a sustaining processes. It allows muscle tissue
vital function? to pull on its attachment points and shorten
with force
Why is extensibility of it is a vital component of total muscle function
skeletal muscle a vital because it allows for maximum length of both
function? activated and nonactivated msucles.
When the muscle relaxes and returns to its
normal resting length after being stretched, it
Why is elasticity of is using elasticity.. If the muscles did not
skeletal muscle a return to normal length after being stretched,
vital function? the muscles would not ever be in the best
resting position for optimal force
generation and it would be VERY hard to ever
move our muscles or generate any force at
all.
