BIO 201 EXAM 3 COMPREHENSIVE TEST
QUESTIONS AND CORRECT ANSWERS
COMPLETE SOLUTION VERIFIED PASS
●● What is the study of the muscular system called?
Answer: Myology
●● What are the 4 functions of muscles?
Answer: 1. Movement
2. Stability
3. Control of body openings and passages
4. Heat production
●● Muscular movements also serve various roles in ______________.
Answer: Communication
●● Describe stability.
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?
,Answer: 85%
●● What is the endomysium layer?
Answer: Thin sleeve of loose connective tissue that surrounds each
muscle fiber.
●● The endomysium layer provides room for two things, what are they?
Answer: 1. Blood capillaries
2. Nerve fibers
●● The endomysium also provides an __________ ______________
environment for the muscle fiber.
Answer: extracellular chemical
●● Relate the endomysium tissue and excitation.
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?
Answer: Thicker connective tissue sheath that wraps muscle fibers
together in bundles called fassicles.
,●● What are fassicles?
Answer: Bundles of muscle fibers together
●● Are fassicles visible to the naked eye, and if so what do they look
like?
Answer: Yes fassicles are visible to the naked eye, and they appear as
parallel strands.
●● What does the perimysium carry?
Answer: Larger blood vessels, larger nerves, and muscle spindles
●● What is the epimysium layer?
Answer: The fibrous sheath that surrounds the entire muscle
●● What is the fascia?
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?
Answer: 1. Indirect
2. Direct
●● What is an indirect attachment?
, Answer: The muscle ends short of its bony destination and the gap is
bridged by a tendon.
●● What is a tendon?
Answer: Fibrous band or sheet
●● What is direct attachment?
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?
Answer: The bony site of attachment at the relatively stationary end.
●● What is the insertion?
Answer: Attachment site at its more mobile end
●● What is the belly?
Answer: The thicker middle region between the origin and insertion.
●● What is the prime mover (agonist)?
Answer: The muscle that produces most of the force during a particular
joint action.
QUESTIONS AND CORRECT ANSWERS
COMPLETE SOLUTION VERIFIED PASS
●● What is the study of the muscular system called?
Answer: Myology
●● What are the 4 functions of muscles?
Answer: 1. Movement
2. Stability
3. Control of body openings and passages
4. Heat production
●● Muscular movements also serve various roles in ______________.
Answer: Communication
●● Describe stability.
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?
,Answer: 85%
●● What is the endomysium layer?
Answer: Thin sleeve of loose connective tissue that surrounds each
muscle fiber.
●● The endomysium layer provides room for two things, what are they?
Answer: 1. Blood capillaries
2. Nerve fibers
●● The endomysium also provides an __________ ______________
environment for the muscle fiber.
Answer: extracellular chemical
●● Relate the endomysium tissue and excitation.
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?
Answer: Thicker connective tissue sheath that wraps muscle fibers
together in bundles called fassicles.
,●● What are fassicles?
Answer: Bundles of muscle fibers together
●● Are fassicles visible to the naked eye, and if so what do they look
like?
Answer: Yes fassicles are visible to the naked eye, and they appear as
parallel strands.
●● What does the perimysium carry?
Answer: Larger blood vessels, larger nerves, and muscle spindles
●● What is the epimysium layer?
Answer: The fibrous sheath that surrounds the entire muscle
●● What is the fascia?
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?
Answer: 1. Indirect
2. Direct
●● What is an indirect attachment?
, Answer: The muscle ends short of its bony destination and the gap is
bridged by a tendon.
●● What is a tendon?
Answer: Fibrous band or sheet
●● What is direct attachment?
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?
Answer: The bony site of attachment at the relatively stationary end.
●● What is the insertion?
Answer: Attachment site at its more mobile end
●● What is the belly?
Answer: The thicker middle region between the origin and insertion.
●● What is the prime mover (agonist)?
Answer: The muscle that produces most of the force during a particular
joint action.
