Question 1

The structure responsible for attaching muscle to bone is a

Accepted Answer

A)  sphincter.
B)  ligament.
C)  fascia.
D)  tendon.
E)  myofibril.F) A) and D)
G) All of the above

Question 2

A muscle whose name has "triceps" in it

Accepted Answer

A)  has two muscle heads or tendons of origin.
B)  has three muscle heads or tendons of origin.
C)  has four sets of two muscle heads or tendons of origin.
D)  has four muscle heads or tendons of origin.
E)  is part of a complex of three separate muscles that rotate at a joint.F) A) and B)
G) A) and C)

Question 3

The metabolic reactions within fast fibers derive much of their energy from aerobic respiration.

Accepted Answer

A) True 
 B)False

Question 4

______________ muscle fibers have large myoglobin stores,slow contraction velocity,and the highest resistance to fatigue.

Accepted Answer

The answer of ______________ muscle fibers have large myoglobin stores,slow...

Question 5

In the human body,the synovial joint between two bones always serves as the fulcrum of the lever.

Accepted Answer

A) True 
 B)False

Question 6

The narrow space that separates the motor neuron and the skeletal muscle fiber in a neuromuscular junction is called the

Accepted Answer

A)  motor end plate.
B)  synaptic vesicle.
C)  synaptic cleft.
D)  synaptic knob.
E)  ACh floor.F) A) and B)
G) A) and C)

Question 7

Which sequence correctly lists the changes that allow the thick and thin filaments to slide past one another in skeletal muscle contraction?

Accepted Answer

A)  Attach - pivot - detach - return
B)  Pivot - attach - return - detach
C)  Attach - detach - pivot - return
D)  Return - pivot - attach - detach
E)  Pivot - attach - detach - returnF) A) and E)
G) B) and C)

Question 8

In which body region would you expect to find a muscle whose name includes the word "pollicis"?

Accepted Answer

A)  Great toe
B)  Buttocks
C)  Thumb
D)  Neck
E)  WristF) C) and E)
G) C) and D)

Question 9

When a muscle is isometrically contracted,its length _______ change.

Accepted Answer

A)  does
B)  does notC) A) and B)
D) undefined

Question 10

The biceps brachii is an example of a ________ muscle.

Accepted Answer

A)  bipennate
B)  parallel
C)  circular
D)  convergent
E)  multipennateF) A) and E)
G) D) and E)

Question 11

Which is the neurotransmitter that causes the release of calcium ions and initiates the steps of skeletal muscle fiber contraction?

Accepted Answer

A)  Acetylcholinesterase
B)  Rubitussin
C)  Acetylcholine
D)  Serotonin
E)  NorepinephrineF) B) and C)
G) A) and D)

Question 12

Parallel muscles exhibit great strength but little endurance.

Accepted Answer

A) True 
 B)False

Question 13

______________ are Z disc proteins that anchor and interconnect the thin filament ends at either end of a sarcomere.

Accepted Answer

The answer of ______________ are Z disc proteins that anchor...

Question 14

Skeletal muscle helps regulate body temperature.

Accepted Answer

A) True 
 B)False

Question 15

During muscle contraction,myosin heads attach to actin and thereby form connections called ______________.

Accepted Answer

The answer of During muscle contraction,myosin heads attach to actin...

Question 16

Which letter is associated with the line that is a thin protein structure in the center of a band and serves as an attachment site for thin filament ends?

Accepted Answer

A)  I
B)  A
C)  Z
D)  M
E)  HF) A) and E)
G) A) and B)

Question 17

In general,a skeletal muscle is composed of
A: Connective tissue sheaths
B: Nerves
C: Arteries
D: Veins
E: Muscle fibers

Accepted Answer

A)  a,b,c,e
B)  a,b,d,e
C)  b,c,d,e
D)  a,b,c,d
E)  a,b,c,d,eF) B) and D)
G) B) and C)

Question 18

A muscle whose name has "profundus" in it is located

Accepted Answer

A)  on the front.
B)  deep.
C)  on the side.
D)  parallel to the midline.
E)  superficially.F) C) and D)
G) None of the above

Question 19

When the muscles on the posterior side of the head pull on the skull and oppose the tendency of the head to tip anteriorly,one has an example of a _____ lever.

Accepted Answer

A)  first-class
B)  second-class
C)  third-classD) None of the above
E) A) and C)

Question 20

Which protein makes up the thick filaments?

Accepted Answer

A)  Myosin
B)  Actin
C)  Tropomyosin
D)  Troponin
E)  MyopathyF) C) and D)
G) B) and E)

Exam 10: Muscle Tissue and Organization

When a muscle is isometrically contracted,its length _______ change.

Correct AnswerverifiedShow Answer

The metabolic reactions within fast fibers derive much of their energy from aerobic respiration.

Correct AnswerverifiedShow Answer

In the human body,the synovial joint between two bones always serves as the fulcrum of the lever.

Correct AnswerverifiedShow Answer

When the muscles on the posterior side of the head pull on the skull and oppose the tendency of the head to tip anteriorly,one has an example of a _____ lever.

Correct AnswerverifiedShow Answer

In which body region would you expect to find a muscle whose name includes the word "pollicis"?

Correct AnswerverifiedShow Answer

The biceps brachii is an example of a ________ muscle.

Correct AnswerverifiedShow Answer

A muscle whose name has "profundus" in it is located

Correct AnswerverifiedShow Answer

Which protein makes up the thick filaments?

Correct AnswerverifiedShow Answer

The narrow space that separates the motor neuron and the skeletal muscle fiber in a neuromuscular junction is called the

Correct AnswerverifiedShow Answer

Which is the neurotransmitter that causes the release of calcium ions and initiates the steps of skeletal muscle fiber contraction?

Correct AnswerverifiedShow Answer

A muscle whose name has "triceps" in it

Correct AnswerverifiedShow Answer

Skeletal muscle helps regulate body temperature.

Correct AnswerverifiedShow Answer

______________ are Z disc proteins that anchor and interconnect the thin filament ends at either end of a sarcomere.

Correct AnswerverifiedShow Answer

The structure responsible for attaching muscle to bone is a

Correct AnswerverifiedShow Answer

______________ muscle fibers have large myoglobin stores,slow contraction velocity,and the highest resistance to fatigue.

Correct AnswerverifiedShow Answer

Which sequence correctly lists the changes that allow the thick and thin filaments to slide past one another in skeletal muscle contraction?

Correct AnswerverifiedShow Answer

In general,a skeletal muscle is composed of A: Connective tissue sheaths B: Nerves C: Arteries D: Veins E: Muscle fibers

Correct AnswerverifiedShow Answer

During muscle contraction,myosin heads attach to actin and thereby form connections called ______________.

Correct AnswerverifiedShow Answer

Parallel muscles exhibit great strength but little endurance.

Correct AnswerverifiedShow Answer

Which letter is associated with the line that is a thin protein structure in the center of a band and serves as an attachment site for thin filament ends?

Correct AnswerverifiedShow Answer

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