BIO 201 EXAM 3 WITH CORRECT
ANSWERS 2025
What composes the muscular system? correct answers >>
Skeletal muscles only
What is the study of the muscular system called? correct
answers >> Myology
What are the 4 functions of muscles? correct answers >> 1.
Movement
2. Stability
3. Control of body openings and passages
4. Heat production
Muscular movements also serve various roles in ______________.
correct answers >> Communication
Describe stability. correct answers >> Prevents unwanted
movements, there are some muscles known as the antigravity
muscles that fight against gravity that help us not fall over or
slump.
What percent of body heat is produced by skeletal muscles?
correct answers >> 85%
,What is the endomysium layer? correct answers >> Thin
sleeve of loose connective tissue that surrounds each muscle
fiber.
The endomysium layer provides room for two things, what are
they? correct answers >> 1. Blood capillaries
2. Nerve fibers
The endomysium also provides an __________ ______________
environment for the muscle fiber. correct answers >>
extracellular chemical
Relate the endomysium tissue and excitation. correct answers
>> Excitation of the muscle fiber depends on exchange of
calcium, sodium, and potassium ions across the endomysial tissue
and the nerve end.
What is the perimysium layer? correct answers >> Thicker
connective tissue sheath that wraps muscle fibers together in
bundles called fassicles.
What are fassicles? correct answers >> Bundles of muscle
fibers together
Are fassicles visible to the naked eye, and if so what do they look
like? correct answers >> Yes fassicles are visible to the
naked eye, and they appear as parallel strands.
, What does the perimysium carry? correct answers >> Larger
blood vessels, larger nerves, and muscle spindles
What is the epimysium layer? correct answers >> The fibrous
sheath that surrounds the entire muscle
What is the fascia? correct answers >> Sheet of connective
tissue that separates neighboring muscles or muscle groups from
each other and from the subcutaneous tissue.
What are the two types of muscle attachments? correct
answers >> 1. Indirect
2. Direct
What is an indirect attachment? correct answers >> The
muscle ends short of its bony destination and the gap is bridged
by a tendon.
What is a tendon? correct answers >> Fibrous band or sheet
What is direct attachment? correct answers >> There is so
little separation between muscle and bone that to the naked eye,
the red muscular tissue seems to emerge directly from the bone.
What is the origin? correct answers >> The bony site of
attachment at the relatively stationary end.
What is the insertion? correct answers >> Attachment site at
its more mobile end
ANSWERS 2025
What composes the muscular system? correct answers >>
Skeletal muscles only
What is the study of the muscular system called? correct
answers >> Myology
What are the 4 functions of muscles? correct answers >> 1.
Movement
2. Stability
3. Control of body openings and passages
4. Heat production
Muscular movements also serve various roles in ______________.
correct answers >> Communication
Describe stability. correct answers >> Prevents unwanted
movements, there are some muscles known as the antigravity
muscles that fight against gravity that help us not fall over or
slump.
What percent of body heat is produced by skeletal muscles?
correct answers >> 85%
,What is the endomysium layer? correct answers >> Thin
sleeve of loose connective tissue that surrounds each muscle
fiber.
The endomysium layer provides room for two things, what are
they? correct answers >> 1. Blood capillaries
2. Nerve fibers
The endomysium also provides an __________ ______________
environment for the muscle fiber. correct answers >>
extracellular chemical
Relate the endomysium tissue and excitation. correct answers
>> Excitation of the muscle fiber depends on exchange of
calcium, sodium, and potassium ions across the endomysial tissue
and the nerve end.
What is the perimysium layer? correct answers >> Thicker
connective tissue sheath that wraps muscle fibers together in
bundles called fassicles.
What are fassicles? correct answers >> Bundles of muscle
fibers together
Are fassicles visible to the naked eye, and if so what do they look
like? correct answers >> Yes fassicles are visible to the
naked eye, and they appear as parallel strands.
, What does the perimysium carry? correct answers >> Larger
blood vessels, larger nerves, and muscle spindles
What is the epimysium layer? correct answers >> The fibrous
sheath that surrounds the entire muscle
What is the fascia? correct answers >> Sheet of connective
tissue that separates neighboring muscles or muscle groups from
each other and from the subcutaneous tissue.
What are the two types of muscle attachments? correct
answers >> 1. Indirect
2. Direct
What is an indirect attachment? correct answers >> The
muscle ends short of its bony destination and the gap is bridged
by a tendon.
What is a tendon? correct answers >> Fibrous band or sheet
What is direct attachment? correct answers >> There is so
little separation between muscle and bone that to the naked eye,
the red muscular tissue seems to emerge directly from the bone.
What is the origin? correct answers >> The bony site of
attachment at the relatively stationary end.
What is the insertion? correct answers >> Attachment site at
its more mobile end
