Question 1

During which stage of muscle contraction does actin bind to myosin?

Accepted Answer

A)   Coupling
B)   Relaxation
C)   Discharging
D)   ExcitationE) A) and D)
F) None of the above

Question 2

Once their initial function is complete, what do osteoblasts become?

Accepted Answer

A)   Osteoclasts
B)   Osteocytes
C)   Chondroblasts
D)   OsteoidsE) B) and C)
F) A) and D)

Question 3

Which tissue layer bundles muscle fibres into fascicles in skeletal muscle?

Accepted Answer

A)   Tendon sheath
B)   Endomysium
C)   Epimysium
D)   PerimysiumE) A) and C)
F) None of the above D

Question 4

Which component of the bone matrix gives bone its tensile strength?

Accepted Answer

A)   Calcium
B)   Phosphate
C)   Collagen
D)   MagnesiumE) None of the above
F) A) and D)

Question 5

What is the main energy source or fuel for skeletal muscle contraction?

Accepted Answer

A)   Potassium
B)   Lactic acid
C)   Adenosine triphosphate (ATP) 
D)   ActinE) A) and B)
F) All of the above

Question 6

Which molecules are parts of the bone matrix? (Select all that apply.)

Accepted Answer

A)   Collagen fibres
B)   Elastin fibres
C)   Proteoglycans
D)   Glycoproteins
E)   Epithelial cellsF) All of the above
G) B) and E)

Question 7

Which of the following should the nurse include when discussing the different types of cartilaginous joints?

Accepted Answer

A)   Sutures and gomphosis
B)   Syndesmosis and gomphosis
C)   Symphysis and synchondrosis
D)   Gomphosis and synchondrosisE) B) and D)
F) A) and D)

Question 8

What does the term "sarcopenia" describe?

Accepted Answer

A)   Absence of muscle cells
B)   Fatigue of muscle cells
C)   Age-related loss in skeletal muscle
D)   Muscles that are unable to contractE) B) and C)
F) A) and D) C

Question 9

The skeletal muscles are encased in a connective tissue framework made of:

Accepted Answer

A)   bone.
B)   epithelium.
C)   fascia.
D)   cartilage.E) None of the above
F) A) and C)

Question 10

When describing a freely movable joint, which term should be used?

Accepted Answer

A)   Synarthrosis
B)   Amphiarthrosis
C)   Fibrous
D)   DiarthrosisE) B) and C)
F) B) and D)

Question 11

Which molecule prevents a muscle contraction from occurring when the muscle is at rest?

Accepted Answer

A)   Calcium
B)   Troponin
C)   Actin
D)   MyosinE) A) and B)
F) B) and C)

Question 12

How do blood vessels penetrate into the inner structures of the bone?

Accepted Answer

A)   Volkmann canals
B)   Canaliculi
C)   Sharpey fibres
D)   LamellaeE) A) and B)
F) All of the above

Question 13

What is the major difference between compact and spongy bone?

Accepted Answer

A)   Organization of the structural elements
B)   Location within the body
C)   Activating chemicals in each
D)   Types of minerals in the bone matrixE) A) and B)
F) All of the above A

Question 14

Which ions within a myofibril directly control the contraction of muscles?

Accepted Answer

A)   Sodium
B)   Potassium
C)   Calcium
D)   MagnesiumE) C) and D)
F) A) and B)

Question 15

Between which structures will you find a synchondrosis that contains costal cartilage?

Accepted Answer

A)   Vertebrae
B)   Ribs and sternum
C)   Sutures of the skull
D)   Facial bonesE) A) and D)
F) B) and D)

Question 16

After puberty, the epiphyseal plate calcifies, and the epiphysis and _____ merge.

Accepted Answer

A)   epiphyseal line
B)   diaphyseal plate
C)   metaphysis
D)   articular cartilageE) None of the above
F) All of the above

Question 17

The nurse observed that the patient's muscle contracted, but the limb did not move. How should the nurse chart this muscle contraction?

Accepted Answer

A)   Isotonic contraction
B)   Isometric contraction
C)   Eccentric contraction
D)   Concentric contractionE) B) and C)
F) B) and D)

Question 18

Which terms are used to refer to skeletal muscle anatomy? (Select all that apply.)

Accepted Answer

A)   Epimysium
B)   Striated
C)   Fascicles
D)   Lacunae
E)   LamellaeF) C) and E)
G) A) and E)

Question 19

A nurse recalls that the freely moveable joint is an example of which type of joint?

Accepted Answer

A)   Amphiarthrosis
B)   Diarthrosis
C)   Synarthrosis
D)   SymphysisE) All of the above
F) None of the above

Question 20

The nursing student has a good understanding of glycoproteins when he states which of the following glycoproteins are present in the bone? (Select all that apply.)

Accepted Answer

A)   Osteocalcin
B)   Sialoprotein
C)   Bone albumin
D)   Alpha-glycoprotein
E)   CollagenF) C) and D)
G) A) and E)

Exam 38: Structure and Function of the Musculo-Skeletal System

During which stage of muscle contraction does actin bind to myosin?

Correct AnswerverifiedShow Answer

Once their initial function is complete, what do osteoblasts become?

Correct AnswerverifiedShow Answer

Which tissue layer bundles muscle fibres into fascicles in skeletal muscle?

Correct AnswerverifiedD

Which component of the bone matrix gives bone its tensile strength?

Correct AnswerverifiedShow Answer

What is the main energy source or fuel for skeletal muscle contraction?

Correct AnswerverifiedShow Answer

Which molecules are parts of the bone matrix? (Select all that apply.)

Correct AnswerverifiedShow Answer

Which of the following should the nurse include when discussing the different types of cartilaginous joints?

Correct AnswerverifiedShow Answer

What does the term "sarcopenia" describe?

Correct AnswerverifiedC

The skeletal muscles are encased in a connective tissue framework made of:

Correct AnswerverifiedShow Answer

When describing a freely movable joint, which term should be used?

Correct AnswerverifiedShow Answer

Which molecule prevents a muscle contraction from occurring when the muscle is at rest?

Correct AnswerverifiedShow Answer

How do blood vessels penetrate into the inner structures of the bone?

Correct AnswerverifiedShow Answer

What is the major difference between compact and spongy bone?

Correct AnswerverifiedA

Which ions within a myofibril directly control the contraction of muscles?

Correct AnswerverifiedShow Answer

Between which structures will you find a synchondrosis that contains costal cartilage?

Correct AnswerverifiedShow Answer

After puberty, the epiphyseal plate calcifies, and the epiphysis and _____ merge.

Correct AnswerverifiedShow Answer

The nurse observed that the patient's muscle contracted, but the limb did not move. How should the nurse chart this muscle contraction?

Correct AnswerverifiedShow Answer

Which terms are used to refer to skeletal muscle anatomy? (Select all that apply.)

Correct AnswerverifiedShow Answer

A nurse recalls that the freely moveable joint is an example of which type of joint?

Correct AnswerverifiedShow Answer

The nursing student has a good understanding of glycoproteins when he states which of the following glycoproteins are present in the bone? (Select all that apply.)

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
C

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified