Question 1

What is the correct order that a motor nerve impulse travels when triggering a muscle contraction?

Accepted Answer

A)  motor nerve-synaptic cleft-sarcolemma-sarcoplasmic reticulum-troponin
B)  motor nerve-synaptic cleft-sarcolemma-troponin-sarcoplasmic reticulum
C)  motor nerve-sarcoplasmic reticulum-synaptic cleft-sarcolemma-troponin
D)  motor nerve-sarcolemma-sarcoplasmic reticulum-synaptic cleft-troponin
E)  motor nerve-sarcolemma-synaptic cleft-sarcoplasmic reticulum-troponinF) C) and E)
G) C) and D)

Question 2

In crowded Asian regions such as Hong Kong,there is not enough room for cemeteries.However,the dead can be temporarily buried and their bones can later be exhumed and stored in an ossarium,a wall made of small concrete boxes (about eight inches by eight inches by two feet long) just large enough to contain all the human bones.These dimensions are defined by the ________,which is the longest bone and the ________,which is the bone with the largest volume in the human body.

Accepted Answer

A)  humerus; vertebrae
B)  femur; skull
C)  vertebrae; pelvis
D)  radius; scapula
E)  clavicle; metatarsalsF) C) and D)
G) B) and E)

Question 3

Which one of the following structures is NOT a part of the appendicular skeleton?

Accepted Answer

A)  ribs
B)  fibula
C)  humerus
D)  coxal
E)  radiusF) A) and D)
G) B) and C)

Question 4

The elbow and knee are examples of ________ joints.

Accepted Answer

A)  immovable
B)  fibrous
C)  cartilaginous
D)  synovial
E)  ball-and-socketF) B) and C)
G) B) and D)

Question 5

Explain the function of each of the following structures in regards to muscle contraction: actin filaments,Ca+ ions,myosin filaments and ATP.

Accepted Answer

Actin filaments - slide past the myosin causing the contraction. Ca⁺ ions - are needed for the myosin to bind to the actin. Myosin filaments - pull actin filaments by means of crossbridges,also split ATP ATP - supply the energy for the muscle contraction

Question 6

An oxygen debt occurs when

Accepted Answer

A)  there is too much oxygen in the muscle tissues.
B)  ATP is depleted,and the body starts to use creatine phosphate to supply new ATP.
C)  ATP is depleted,and the body starts breaking down actin and myosin to allow muscle contraction to occur.
D)  there is no oxygen for aerobic respiration,and the body must use lactic acid fermentation to produce ATP.
E)  None of the choices are correct.F) B) and E)
G) A) and D)

Question 7

Which of the following associations of bone structures and functions is NOT correct?

Accepted Answer

A)  osteoblasts - cells that build bone tissue
B)  osteoclasts - cells that break down bone tissue
C)  osteons - tubular units of compact bone
D)  red bone marrow - fat-storage tissue
E)  lacunae - tiny chambers in concentric circles around a central canalF) A) and B)
G) A) and C)

Question 8

Identify the labeled structures on the human skeleton in the picture.  A: ________
B: ________
C: ________
D: ________
E: ________
F: ________
G: ________
H: ________
I: ________
J: ________
K: ________
L: ________
M: ________
N: ________
O: ________
P: ________

Accepted Answer

A: parietal bone B: temporal bone C: occ...

Question 9

Which of the following statements about skeletons is NOT true?

Accepted Answer

A)  The skeleton of a vertebrate is an endoskeleton.
B)  The skeleton of an arthropod is an exoskeleton.
C)  The skeleton of a clam is an exoskeleton.
D)  All exoskeletons must be shed as the animal grows.
E)  An earthworm has a fluid-filled cavity that acts as a hydrostatic skeleton.F) A) and B)
G) A) and D)

Question 10

Which muscle list of structures is correctly organized from large to small?

Accepted Answer

A)  muscle,muscle cell,myofibril,sarcomeres,filaments
B)  muscle,muscle fibers,sarcomeres,filaments,myofibrils
C)  muscle,sarcolemma,myofibrils,actin filaments,myosin filaments
D)  muscle cells,myofibrils,filaments,sarcoplasmE) A) and D)
F) A) and C)

Question 11

When a person straightens her arm,she is flexing the triceps brachii.During this movement,the triceps are referred to as the

Accepted Answer

A)  agonist.
B)  antagonist.
C)  tendon.
D)  All of these.
E)  None of these.F) C) and E)
G) B) and C)

Question 12

According to the sliding filament theory of muscle contraction,

Accepted Answer

A)  actin binds ATP and breaks it apart as actin pulls against myosin.
B)  calcium ions are released from myosin as the filaments slide by.
C)  the thick and thin filaments do not change length during this process.
D)  an accordion-like pleat is formed as the myosin and actin interact.
E)  All of the choices are correct.F) A) and B)
G) A) and E)

Question 13

Which of the following statements about the skeleton of a clam is NOT true?

Accepted Answer

A)  The skeleton of a clam has two separate shells.
B)  The skeleton of a clam grows with the organism.
C)  The skeleton of a clam is made of calcium carbonate.
D)  The skeleton of a clam is used mainly to allow movement of the organism.
E)  The skeleton of a clam has muscles attached to it from the inside of the body.F) All of the above
G) A) and C)

Question 14

The type of bone tissue that is found in the middle portion of a long bone and has lacunae arranged in concentric circles around central canals that contain blood vessels and nerves is

Accepted Answer

A)  spongy bone.
B)  compact bone.
C)  red marrow.
D)  yellow marrow.
E)  fibrous membrane.F) All of the above
G) A) and D)

Question 15

One of the major functions of the skeletal system is to store long term sources of energy for the body.

Accepted Answer

A) True 
 B)False

Question 16

The pectoral girdle is adapted for great strength,whereas the pelvic girdle is more adapted for flexibility.

Accepted Answer

A) True 
 B)False  False

Question 17

Name the neuromuscular transmitter that is released into the synaptic cleft.

Accepted Answer

A)  sodium ions
B)  calcium ions
C)  ATP
D)  creatine phosphate
E)  acetylcholineF) A) and C)
G) A) and B) E

Question 18

The alternation of circular muscle contraction and longitudinal muscle contraction allows the earthworm to move forward.What type of support system aids locomotion in the earthworm?

Accepted Answer

A)  an exoskeleton
B)  an endoskeleton
C)  a calcium carbonate shell
D)  a hydrostatic skeletonE) A) and B)
F) All of the above

Question 19

List the five major functions of the skeletal system.

Accepted Answer

1.Support of the body 2.Protec...

Question 20

Which of the following structures attaches muscle to the bone?

Accepted Answer

A)  ligaments
B)  joints
C)  tendons
D)  adipose tissue
E)  sarcomereF) B) and D)
G) A) and E)

Exam 39: Locomotion and Support Systems

What is the correct order that a motor nerve impulse travels when triggering a muscle contraction?

Correct Answer
verified

Correct Answer
verified

Which one of the following structures is NOT a part of the appendicular skeleton?

Correct Answer
verified

The elbow and knee are examples of ________ joints.

Correct Answer
verified

Explain the function of each of the following structures in regards to muscle contraction: actin filaments,Ca⁺ ions,myosin filaments and ATP.

Correct Answer
verified
Actin filaments - slide past the myosin causing the contraction. Ca⁺ ions - are needed for the myosin to bind to the actin. Myosin filaments - pull actin filaments by means of crossbridges,also split ATP ATP - supply the energy for the muscle contraction

An oxygen debt occurs when

Correct Answer
verified

Which of the following associations of bone structures and functions is NOT correct?

Correct Answer
verified

Identify the labeled structures on the human skeleton in the picture. A: B: C: D: E: F: G: H: I: J: K: L: M: N: O: P:

Correct Answer
verified
A: parietal bone B: temporal bone C: occ...
View Answer

Which of the following statements about skeletons is NOT true?

Correct Answer
verified

Which muscle list of structures is correctly organized from large to small?

Correct Answer
verified

When a person straightens her arm,she is flexing the triceps brachii.During this movement,the triceps are referred to as the

Correct Answer
verified

According to the sliding filament theory of muscle contraction,

Correct Answer
verified

Which of the following statements about the skeleton of a clam is NOT true?

Correct Answer
verified

The type of bone tissue that is found in the middle portion of a long bone and has lacunae arranged in concentric circles around central canals that contain blood vessels and nerves is

Correct Answer
verified

One of the major functions of the skeletal system is to store long term sources of energy for the body.

Correct Answer
verified

The pectoral girdle is adapted for great strength,whereas the pelvic girdle is more adapted for flexibility.

Correct Answer
verified
False

Name the neuromuscular transmitter that is released into the synaptic cleft.

Correct Answer
verified
E

The alternation of circular muscle contraction and longitudinal muscle contraction allows the earthworm to move forward.What type of support system aids locomotion in the earthworm?

Correct Answer
verified

List the five major functions of the skeletal system.

Correct Answer
verified
1.Support of the body 2.Protec...
View Answer

Which of the following structures attaches muscle to the bone?

Correct Answer
verified

Exam 39: Locomotion and Support Systems

What is the correct order that a motor nerve impulse travels when triggering a muscle contraction?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which one of the following structures is NOT a part of the appendicular skeleton?

Correct AnswerverifiedShow Answer

The elbow and knee are examples of ________ joints.

Correct AnswerverifiedShow Answer

Explain the function of each of the following structures in regards to muscle contraction: actin filaments,Ca+ ions,myosin filaments and ATP.

Correct AnswerverifiedActin filaments - slide past the myosin causing the contraction. Ca+ ions - are needed for the myosin to bind to the actin. Myosin filaments - pull actin filaments by means of crossbridges,also split ATP ATP - supply the energy for the muscle contraction

An oxygen debt occurs when

Correct AnswerverifiedShow Answer

Which of the following associations of bone structures and functions is NOT correct?

Correct AnswerverifiedShow Answer

Identify the labeled structures on the human skeleton in the picture. A: ________ B: ________ C: ________ D: ________ E: ________ F: ________ G: ________ H: ________ I: ________ J: ________ K: ________ L: ________ M: ________ N: ________ O: ________ P: ________

Correct AnswerverifiedA: parietal bone B: temporal bone C: occ...View AnswerShow Answer

Which of the following statements about skeletons is NOT true?

Correct AnswerverifiedShow Answer

Which muscle list of structures is correctly organized from large to small?

Correct AnswerverifiedShow Answer

When a person straightens her arm,she is flexing the triceps brachii.During this movement,the triceps are referred to as the

Correct AnswerverifiedShow Answer

According to the sliding filament theory of muscle contraction,

Correct AnswerverifiedShow Answer

Which of the following statements about the skeleton of a clam is NOT true?

Correct AnswerverifiedShow Answer

The type of bone tissue that is found in the middle portion of a long bone and has lacunae arranged in concentric circles around central canals that contain blood vessels and nerves is

Correct AnswerverifiedShow Answer

One of the major functions of the skeletal system is to store long term sources of energy for the body.

Correct AnswerverifiedShow Answer

The pectoral girdle is adapted for great strength,whereas the pelvic girdle is more adapted for flexibility.

Correct AnswerverifiedFalse

Name the neuromuscular transmitter that is released into the synaptic cleft.

Correct AnswerverifiedE

The alternation of circular muscle contraction and longitudinal muscle contraction allows the earthworm to move forward.What type of support system aids locomotion in the earthworm?

Correct AnswerverifiedShow Answer

List the five major functions of the skeletal system.

Correct Answerverified1.Support of the body 2.Protec...View AnswerShow Answer

Which of the following structures attaches muscle to the bone?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
verified

Correct Answer
verified

Explain the function of each of the following structures in regards to muscle contraction: actin filaments,Ca⁺ ions,myosin filaments and ATP.

Correct Answer
verified
Actin filaments - slide past the myosin causing the contraction. Ca⁺ ions - are needed for the myosin to bind to the actin. Myosin filaments - pull actin filaments by means of crossbridges,also split ATP ATP - supply the energy for the muscle contraction

Correct Answer
verified

Correct Answer
verified

Identify the labeled structures on the human skeleton in the picture. A: B: C: D: E: F: G: H: I: J: K: L: M: N: O: P:

Correct Answer
verified
A: parietal bone B: temporal bone C: occ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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False

Correct Answer
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E

Correct Answer
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Correct Answer
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1.Support of the body 2.Protec...
View Answer

Correct Answer
verified