BIO 201 EXAM 3 QUESTIONS &
CORRECT VALID ANSWERS 100%
What are the 4 functions of muscles? - correct answer ✔✔1. Movement
2. Stability
3. Control of body openings and passages
4. Heat production
What is the study of the muscular system called? - correct answer ✔✔Myology
What composes the muscular system? - correct answer ✔✔Skeletal muscles only
Muscular movements also serve various roles in ______________. - correct answer
✔✔Communication
Describe stability. - correct answer ✔✔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 answer ✔✔85%
What is the endomysium layer? - correct answer ✔✔Thin sleeve of loose connective tissue that
surrounds each muscle fiber.
The endomysium layer provides room for two things, what are they? - correct answer ✔✔1.
Blood capillaries
2. Nerve fibers
,The endomysium also provides an __________ ______________ environment for the muscle
fiber. - correct answer ✔✔extracellular chemical
Relate the endomysium tissue and excitation. - correct answer ✔✔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 answer ✔✔Thicker connective tissue sheath that wraps
muscle fibers together in bundles called fassicles.
What are fassicles? - correct answer ✔✔Bundles of muscle fibers together
Are fassicles visible to the naked eye, and if so what do they look like? - correct answer ✔✔Yes
fassicles are visible to the naked eye, and they appear as parallel strands.
What does the perimysium carry? - correct answer ✔✔Larger blood vessels, larger nerves, and
muscle spindles
What is the epimysium layer? - correct answer ✔✔The fibrous sheath that surrounds the entire
muscle
What is the fascia? - correct answer ✔✔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 answer ✔✔1. Indirect
2. Direct
, What is an indirect attachment? - correct answer ✔✔The muscle ends short of its bony
destination and the gap is bridged by a tendon.
What is a tendon? - correct answer ✔✔Fibrous band or sheet
What is direct attachment? - correct answer ✔✔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 answer ✔✔The bony site of attachment at the relatively stationary
end.
What is the insertion? - correct answer ✔✔Attachment site at its more mobile end
What is the belly? - correct answer ✔✔The thicker middle region between the origin and
insertion.
What is the prime mover (agonist)? - correct answer ✔✔The muscle that produces most of the
force during a particular joint action.
What is the synergist? - correct answer ✔✔Muscle that aids the prime mover.
What is the antagonist? - correct answer ✔✔A muscle that opposes the prime mover, limits the
speed or range of the prime mover.
What is a fixator? - correct answer ✔✔A muscle that prevents a bone from moving.
What is an intrinsic muscle? - correct answer ✔✔Is entirely contained within a particular region,
having both its origin and insertion there.
CORRECT VALID ANSWERS 100%
What are the 4 functions of muscles? - correct answer ✔✔1. Movement
2. Stability
3. Control of body openings and passages
4. Heat production
What is the study of the muscular system called? - correct answer ✔✔Myology
What composes the muscular system? - correct answer ✔✔Skeletal muscles only
Muscular movements also serve various roles in ______________. - correct answer
✔✔Communication
Describe stability. - correct answer ✔✔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 answer ✔✔85%
What is the endomysium layer? - correct answer ✔✔Thin sleeve of loose connective tissue that
surrounds each muscle fiber.
The endomysium layer provides room for two things, what are they? - correct answer ✔✔1.
Blood capillaries
2. Nerve fibers
,The endomysium also provides an __________ ______________ environment for the muscle
fiber. - correct answer ✔✔extracellular chemical
Relate the endomysium tissue and excitation. - correct answer ✔✔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 answer ✔✔Thicker connective tissue sheath that wraps
muscle fibers together in bundles called fassicles.
What are fassicles? - correct answer ✔✔Bundles of muscle fibers together
Are fassicles visible to the naked eye, and if so what do they look like? - correct answer ✔✔Yes
fassicles are visible to the naked eye, and they appear as parallel strands.
What does the perimysium carry? - correct answer ✔✔Larger blood vessels, larger nerves, and
muscle spindles
What is the epimysium layer? - correct answer ✔✔The fibrous sheath that surrounds the entire
muscle
What is the fascia? - correct answer ✔✔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 answer ✔✔1. Indirect
2. Direct
, What is an indirect attachment? - correct answer ✔✔The muscle ends short of its bony
destination and the gap is bridged by a tendon.
What is a tendon? - correct answer ✔✔Fibrous band or sheet
What is direct attachment? - correct answer ✔✔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 answer ✔✔The bony site of attachment at the relatively stationary
end.
What is the insertion? - correct answer ✔✔Attachment site at its more mobile end
What is the belly? - correct answer ✔✔The thicker middle region between the origin and
insertion.
What is the prime mover (agonist)? - correct answer ✔✔The muscle that produces most of the
force during a particular joint action.
What is the synergist? - correct answer ✔✔Muscle that aids the prime mover.
What is the antagonist? - correct answer ✔✔A muscle that opposes the prime mover, limits the
speed or range of the prime mover.
What is a fixator? - correct answer ✔✔A muscle that prevents a bone from moving.
What is an intrinsic muscle? - correct answer ✔✔Is entirely contained within a particular region,
having both its origin and insertion there.
