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Week 3 Quiz.docx
Week_3_Quiz.docx
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Week 3 Quiz (ANSWER SHEET AT THE END)Return to As
Week 3 Quiz (ANSWER SHEET AT THE END)Return to As
Week 3 Quiz (ANSWER SHEET AT THE E...
Week 3 Quiz (ANSWER SHEET AT THE END)Return to As
Week 3 Quiz (ANSWER SHEET AT THE END)
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Part 1 of 6 - 21.0/ 21.0 Points
Queson 1 of 32 3.0/ 3.0 Points
In adults, the medullary cavity contains red bone marrow. True [b False
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Queson 2 of 32 3.0/ 3.0 Points
The shaſt of a long bone is called the:
A.periosteum.
B.metaphysis.
C.endosteum.
D.epiphysis.
E.diaphysis.
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Queson 3 of 32 3.0/ 3.0 Points
The vertebral column is also called the spine, spinal column, or backbone. True
False
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Queson 4 of 32 3.0/ 3.0 Points
Osteogenic cells
A.develop into osteoblasts.
B.deposit calcium into the bone.
C.are mature bone cells.
D.surround themselves with matrix.
E.break down bone.
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Queson 5 of 32 3.0/ 3.0 Points
Which of the following is NOT considered to be a long bone?
A.bones of the ribcage
B.bones of the legs
C.bones of the thighs
D.bones of the forearms
E.bones of the fingers
Feedback: Good job!
Queson 6 of 32 3.0/ 3.0 Points
Bone formaon is called ossificaon. True
False
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Queson 7 of 32 3.0/ 3.0 Points
Fat is stored in
A.arcular carlage.
B.yellow bone marrow.
C.compact bone.
D.spongy bone.
E.red bone marrow.
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Part 2 of 6 - 21.0/ 21.0 Points
Queson 8 of 32 3.0/ 3.0 Points
Synarthroses are slightly moveable joints. True
False
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Queson 9 of 32 3.0/ 3.0 Points
A suture is a fibrous joint. True
False
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Queson 10 of 32 3.0/ 3.0 Points
The arculaon between the root of the teeth and the alveoli is an example of a
A.amphiarthrosis.
B.synchondrosis.
C.suture.
D.diarthrosis.
E.gomphosis.
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Queson 11 of 32 3.0/ 3.0 Points
Abducon refers to movement of a body part away from the midline. True
False
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Queson 12 of 32 3.0/ 3.0 Points
The arculaon formed between a tooth and its bony socket (alveolus) is called a syndesmosis. True
False
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Queson 13 of 32 3.0/ 3.0 Points
The scienfic study of joints is called
A.arthrology.
B.anthropology.
C.archeology.
D.rheumatology.
E.orthoscopy.
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Queson 14 of 32 3.0/ 3.0 Points
All of the following are structural classificaons of joints EXCEPT
A.synarthrosis.
B.fibrous.
C.carlaginous.
D.synovial.
E.All of the above are correct.
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Part 3 of 6 - 24.0/ 24.0 Points
Queson 15 of 32 3.0/ 3.0 Points
Muscle tone results from
A.rigor mors.
B.slight contracon of all the muscle fibers in a whole muscle.
C.incomplete tetanus.
D.fused tetanus.
E.acvaon of a small number of motor units.
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Queson 16 of 32 3.0/ 3.0 Points
A motor unit is all the:
A.muscle fascicles found in a single muscle.
B.muscle fibers controlled by a single motor neuron.
C.myofibrils in a single muscle fiber.
D.muscles involved in a single movement.
E.none of the above.
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Queson 17 of 32 3.0/ 3.0 Points
Pain in or associated with muscles is called
A.propriocepon.
B.myotonia
C.myalgia.
D.hypertonia.
E.myosis.
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Queson 18 of 32 3.0/ 3.0 Points
The muscle that produces the acon of sucking is the
A.zygomacus.
B.frontalis.
C.buccinator.
D.epicranius.
E.occipitalis.
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Queson 19 of 32 3.0/ 3.0 Points
The point of aachment of a muscle (by means of a tendon) to the staonary bone is called the
A.inseron.
B.origin.
C.ligaon.
D.fixaon.
E.head.
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Queson 20 of 32 3.0/ 3.0 Points
The sarcomere is the area between two
A.Z discs.
B.A bands.
C.H zones.
D.B lines.
E.I bands.
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Queson 21 of 32 3.0/ 3.0 Points
Humans undergo a slow, progressive loss of skeletal muscle starng at about age:
A.40
B.50
C.20
D.30
E.60
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Queson 22 of 32 3.0/ 3.0 Points
Which of the following is/are striated and involuntary?
A.skeletal muscle
B.cardiac muscle
C.smooth muscle
D.skeletal muscle and cardiac muscle
E.skeletal muscle and smooth muscle
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Part 4 of 6 - 21.0/ 21.0 Points
Queson 23 of 32 3.0/ 3.0 Points
A motor unit is defined as _______.
A.a nerve and a muscle
B.a single muscle fiber and all its axon terminals
C.a single neuron and a single muscle fiber
D.the axon terminals of a single motor neuron and all of the muscle fibers that it smulates
Feedback: Correct!
Queson 24 of 32 3.0/ 3.0 Points
Increasing the applied voltage in the simulaon corresponds to which in vivo event?
A.motor unit recruitment
B.motor neuron recruitment
C.muscle twitch recruitment
D.muscle fiber recruitment
Feedback: Correct!
Queson 25 of 32 3.0/ 3.0 Points
Which of the following terms are NOT used interchangeably?
A.in vivo — in the body
B.motor unit — motor neuron
C.muscle tension — muscle force
D.muscle cell — muscle fiber
Feedback: Correct!
Queson 26 of 32 3.0/ 3.0 Points
NO force is generated during which of the following?
A.the latent period
B.the contracon phase
C.the relaxaon phase
D.a muscle twitch
Feedback: Correct!
Queson 27 of 32 3.0/ 3.0 Points
Why does wave summaon occur?
A.Muscle fibers are parally contracted when the next smulus arrives.
B.Muscle fibers have been allowed to fully relax.
C.Muscle twitches are not yet overlapping.
D.A large amount of me elapses between smulaons.
Feedback: Correct!
Queson 28 of 32 3.0/ 3.0 Points
What is the minimum voltage needed to generate muscle contracon?
A.smulus voltage
B.recruitment voltage
C.contracon voltage
D.threshold voltage
Feedback: Correct!
Queson 29 of 32 3.0/ 3.0 Points
When wave summaon occurs, _______.
A.the muscle force generated decreases
B.the muscle fiber has received a single smulus event
C.individual muscle twitches are separated
D.the muscle force generated increases
Feedback: Correct!
Part 5 of 6 - 8.0/ 8.0 Points
Answer the following queson in your own words without using any resources. Your answer should be
wrien in complete sentences using correct grammar, spelling, and terminology.
Queson 30 of 32 4.0/ 4.0 Points
Briefly explain the difference between smulus intensity and smulus frequency.Smulus intensity is the
strenght of the voltage and smulus frequency is the number of me per unit that the smulus is
presence.
Feedback: Learning Objecve: Define smulus intensity and smulus frequency.
Please review Lab Exercise 2, Acvity 3.
Comment: Correct
Queson 31 of 32 4.0/ 4.0 Points
Define the term "motor unit."A motor unit is a single motor neuron plus all the muscles fibers that are
connected to it.
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