Question 1

The humerus bone in Figure 19.1 is the bone labeled

Accepted Answer

A)  a
B)  b
C)  c
D)  d
E)  eF) None of the above
G) A) and C)

Question 2

The correct order of regions of vertebrae,from superior to inferior,is

Accepted Answer

A)  thoracic  →\rightarrow→   lumbar  →\rightarrow→  sacrum  →\rightarrow→  cervical  →\rightarrow→   coccyx.
B)  cervical  →\rightarrow→   lumbar  →\rightarrow→  sacrum  →\rightarrow→   thoracic  →\rightarrow→   coccyx.
C)  cervical  →\rightarrow→  thoracic  →\rightarrow→  lumbar  →\rightarrow→   sacrum  →\rightarrow→   coccyx.
D)  lumbar  →\rightarrow→   sacrum  →\rightarrow→  cervical  →\rightarrow→  thoracic  →\rightarrow→  coccyx.
E)  sacrum  →\rightarrow→   cervical  →\rightarrow→   thoracic  →\rightarrow→   lumbar  →\rightarrow→   coccyx. F) A) and C)
G) D) and E)

Question 3

Which of the following can prevent osteoporosis?

Accepted Answer

A)  aspirin therapy
B)  estrogen replacement therapy
C)  treatment with chondroitin sulfate
D)  treatment with glucosamine
E)  treatment with corticosteroidsF) A) and E)
G) C) and D)

Question 4

Which is NOT a correct association of bone structures and functions?

Accepted Answer

A)  osteoblasts-cells that build up bone tissue
B)  osteoclasts-cells that break down bone tissue
C)  osteons-tubular units of compact bone
D)  canaliculi-holes through which blood vessels run
E)  lacunae-tiny chambers in concentric circles around a central canalF) A) and E)
G) B) and E)

Question 5

If all of the muscle fibers in the neck,trunk,and legs were to totally relax,the body would collapse.What is the state called where some of the fibers in a particular muscle are always contracted?

Accepted Answer

A)  twitch
B)  threshold
C)  tetanus
D)  tone
E)  summationF) D) and E)
G) B) and D)

Question 6

Which is NOT a correct association of diseases and description or symptoms?

Accepted Answer

A)  atrophy-decrease in size of muscles from lack of use or stimulation
B)  fibromyalgia-chronic pain in the muscles and ligaments
C)  osteoarthritis-degenerative joint disease
D)  osteoporosis-weakening or thinning of bone sometimes due to low estrogen levels
E)  rheumatoid arthritis-simple wear and tear on jointsF) C) and E)
G) B) and E) E

Question 7

In an accident,the extensor muscles across the back of the fingers of one hand are completely severed.What is the result if no surgery is done to rejoin them?

Accepted Answer

A)  The fingers will dangle and extend out limp.
B)  The fingers will curl and remain permanently flexed.
C)  The fingers will forcibly extend and remain extended.
D)  Hand movements will continue as before the accident.
E)  It depends on how the muscles heal.F) A) and D)
G) A) and C)

Question 8

Which of the following attach muscle to bone?

Accepted Answer

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

Question 9

All types of cartilage are associated with bones.

Accepted Answer

A) True 
 B)False

Question 10

When the biceps brachii contracts,the lower arm extends.

Accepted Answer

A) True 
 B)False  False

Question 11

Which part of a muscle twitch occurs when the sarcomere distance is decreasing?

Accepted Answer

A)  latent period
B)  contraction period
C)  relaxation period
D)  refractory period
E)  expansion periodF) A) and D)
G) A) and E)

Question 12

Which of the following would NOT be found in the pectoral girdle and associated appendages?

Accepted Answer

A)  clavicle
B)  scapula
C)  humerus
D)  tibia
E)  phalangesF) B) and E)
G) B) and D)

Question 13

What structure allows the distribution of nutrients to osteocytes?

Accepted Answer

A)  canaliculi
B)  spongy bone
C)  osteoblasts
D)  growth plates
E)  diaphysisF) A) and C)
G) A) and B)

Question 14

Which of the following is NOT a correct association?

Accepted Answer

A)  fibrocartilage-thick collagen fibers
B)  elastic cartilage-flexible ear flaps
C)  hyaline cartilage-larynx and trachea
D)  articular cartilage-a type of elastic cartilage
E)  hyaline cartilage-appears uniform and glassyF) D) and E)
G) A) and D)

Question 15

What is the name of the muscle that you sit on?

Accepted Answer

A)  deltoid
B)  quadriceps femoris group
C)  hamstring group
D)  gluteus maximus
E)  pectoralis majorF) A) and B)
G) C) and E)

Question 16

Timothy has really "ripped" abdominal muscles.What muscle(s) has he exercised extensively to get that appearance?

Accepted Answer

A)  rectus abdominis
B)  biceps brachii
C)  latissimus dorsi
D)  external oblique
E)  adductor longusF) A) and B)
G) A) and C)

Question 17

What is the correct order of structures that a motor nerve stimulation encounters when triggering a contraction?

Accepted Answer

A)  motor nerve  →\rightarrow→   synaptic cleft  →\rightarrow→  sarcoplasmic reticulum  →\rightarrow→  sarcolemma  →\rightarrow→  troponin
B)  motor nerve  →\rightarrow→   synaptic cleft  →\rightarrow→  sarcolemma  →\rightarrow→  sarcoplasmic reticulum  →\rightarrow→  troponin
C)  motor nerve  →\rightarrow→   sarcoplasmic reticulum  →\rightarrow→  synaptic cleft  →\rightarrow→   sarcolemma  →\rightarrow→   troponin
D)  motor nerve  →\rightarrow→   sarcolemma  →\rightarrow→  sarcoplasmic reticulum  →\rightarrow→   synaptic cleft  →\rightarrow→   troponin
E)  motor nerve  →\rightarrow→   sarcolemma  →\rightarrow→   synaptic cleft  →\rightarrow→  sarcoplasmic reticulum  →\rightarrow→   troponin F) A) and B)
G) All of the above

Question 18

In the movies,there are often scenes where someone is holding a person to prevent them from falling.All of a sudden,the person's grip gives way and the other person falls.What is this most likely due to?

Accepted Answer

A)  The person changes their mind and lets go.
B)  Fatigue,following sustained muscle contraction,is apparent when a muscle relaxes even though stimulation continues.
C)  A muscle twitch has a contraction period followed by a relaxation period.
D)  Some of the muscle fibers contract while others relax at any given time.When more muscle fibers relax than contract,the grip would be broken.
E)  The slow-twitch muscle fibers take over after the fast-twitch muscle fibers fail.These do not have the same strength and endurance as the fast-twitch fibers and the person lets go.F) D) and E)
G) A) and D)

Question 19

What begins as stem cells in the red bone marrow and then specializes to break down bone and release the calcium into the blood?

Accepted Answer

A)  menisci
B)  chondrocytes
C)  osteoclasts
D)  osteoblasts
E)  sarcomeresF) C) and D)
G) B) and E)

Question 20

The plasma membrane of a muscle cell is called a sarcolemma.

Accepted Answer

A) True 
 B)False

Exam 19: Musculoskeletal System

The humerus bone in Figure 19.1 is the bone labeled

Correct AnswerverifiedShow Answer

The correct order of regions of vertebrae,from superior to inferior,is

Correct AnswerverifiedShow Answer

Which of the following can prevent osteoporosis?

Correct AnswerverifiedShow Answer

Which is NOT a correct association of bone structures and functions?

Correct AnswerverifiedShow Answer

If all of the muscle fibers in the neck,trunk,and legs were to totally relax,the body would collapse.What is the state called where some of the fibers in a particular muscle are always contracted?

Correct AnswerverifiedShow Answer

Which is NOT a correct association of diseases and description or symptoms?

Correct AnswerverifiedE

In an accident,the extensor muscles across the back of the fingers of one hand are completely severed.What is the result if no surgery is done to rejoin them?

Correct AnswerverifiedShow Answer

Which of the following attach muscle to bone?

Correct AnswerverifiedC

All types of cartilage are associated with bones.

Correct AnswerverifiedShow Answer

When the biceps brachii contracts,the lower arm extends.

Correct AnswerverifiedFalse

Which part of a muscle twitch occurs when the sarcomere distance is decreasing?

Correct AnswerverifiedShow Answer

Which of the following would NOT be found in the pectoral girdle and associated appendages?

Correct AnswerverifiedShow Answer

What structure allows the distribution of nutrients to osteocytes?

Correct AnswerverifiedShow Answer

Which of the following is NOT a correct association?

Correct AnswerverifiedShow Answer

What is the name of the muscle that you sit on?

Correct AnswerverifiedShow Answer

Timothy has really "ripped" abdominal muscles.What muscle(s) has he exercised extensively to get that appearance?

Correct AnswerverifiedShow Answer

What is the correct order of structures that a motor nerve stimulation encounters when triggering a contraction?

Correct AnswerverifiedShow Answer

In the movies,there are often scenes where someone is holding a person to prevent them from falling.All of a sudden,the person's grip gives way and the other person falls.What is this most likely due to?

Correct AnswerverifiedShow Answer

What begins as stem cells in the red bone marrow and then specializes to break down bone and release the calcium into the blood?

Correct AnswerverifiedShow Answer

The plasma membrane of a muscle cell is called a sarcolemma.

Correct AnswerverifiedShow Answer

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E

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C

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False

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