ANATOMY & PHYSIOLOGY – MUSCLE TISSUE STRUCTURE & CONTRACTION STUDY GUIDE WITH VERIFIED CORRECT ANSWERS (2025–2026)

ANATOMY & PHYSIOLOGY –
MUSCLE TISSUE STRUCTURE &
CONTRACTION STUDY GUIDE
WITH VERIFIED CORRECT
ANSWERS (2025–2026)

,Sarcolemma - correct answers-muscle
plasma membrane


Sarcoplasm - correct answers-cytoplasm
of a muscle cell


Muscle cells respond to neural, stretch,
or other signals by changing their
_______. - correct answers-sarcolemma
electrical potential (voltage)


The electrical potential change is
coupled to intracellular changes that
result in ______. - correct answers-force
generation (contraction)

,Contractility - correct answers-active
shortening of muscle cell and generation
of tension (force)


Extensibility - correct answers-passive
stretching of muscle cells


Elasticity - correct answers-return of
muscle cells to original resting length
after being stretched


Which muscle tissue(s) has cells w/
obvious stripes called striations - correct
answers-skeletal, cardiac

, Which muscle tissue is voluntary and
which is involuntary? - correct answers-
voluntary-skeletal......involuntary-
cardiac,smooth


What muscle tissue contracts rapidly but
tires easily? - correct answers-skeletal


Cardiac muscle contracts at a rate set by
the heart's ________. - correct answers-
pacemaker


Which muscle tissue is primarily found in
the walls of hollow visceral organs? -
correct answers-smooth