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A&P > Exam 4 practice > Flashcards

Exam 4 practice Flashcards

1
Q

Which muscle cells are bifurcated in shape, short and striated?

A

Cardiac

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2
Q

Which function oof the muscle tissue describes walking?

A

Produces body movements

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3
Q

What is a thin connective tissue layer of collagen and reticular fibers that encases the individual muscle fibers inside each fascicle?

A

Endomysium

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4
Q

Which contractile protein is responsible for generating the force that will pull on cellular structures within the myofibril, resulting in shortening or muscle contraction?

A

Myosin

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5
Q

Which ions does the sodium-potassium pump move inside the cell?

A

Potassium

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6
Q

Where are calcium ions located during a muscular contraction?

A

In the sarcoplasm

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7
Q

Lactic acid that contributes to muscle fatigue results from the breakdown of the ….. during metabolism

A

Glucose

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8
Q

The small motor units in the muscle will have smaller,___ motor neurons that are ___ firing first to their skeletal muscle fibers, which also tend to be the smallest

A

Lower threshold, more excitable

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9
Q

____ fibers fatigue at a quicker rate

A

Glycolytic

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10
Q

What kind of changes are primarily triggered in the muscle in response to the resistance training?

A

Muscular hypertrophic

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11
Q

What is the insertion of the biceps brachial muscle?

A

Radius

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12
Q

In a group of muscles that create a movement, the___ stabilizes the bones and prevents unwanted movements

A

Fixator

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13
Q

According to the lever-fulcrum principle, muscles provide the___

A

Effort

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14
Q

Which muscle straightens the leg?

A

Rectus femoris

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15
Q

Which tongue muscle originates on the mandible and allows the tongue to move downward and forward?

A

Genioglossus

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16
Q

Which muscle depresses the mandible in addition to elevating and pulling the hyoid bone anteriorly?

A

Geniohyoid

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17
Q

Which of the following muscles are not a part of the abdominal muscles group?

A

Erector spinae

18
Q

Which group of erector spinae muscles is localized intermediately?

A

Longissimus

19
Q

Which muscle separates the thoracic and abdominal cavities and is dome shaped at rest?

A

Diaphragm

20
Q

What is the condition in which the median nerve is compressed which can result in painful or numb sensations in the hand, loss of grip and strength in the hand, or a combination of those symptoms?

A

Carpal tunnel syndrome

21
Q

Which muscle serves as a common site for intramuscular injection due to the thickness of the muscle reich blood supply which promotes faster absorption, and lack of major nerves and blood vessels within the belly of the muscle?

A

Gluteus medius

22
Q

Which group of muscles is responsible for hip extension and knee flexion?

A

Hamstrings

23
Q

Which muscle is found on the lateral surface of the tibia and produces dorsiflexion in addition to inversion?

A

Tibialis anterior

24
Q

Which muscle cells are cylindrical in shape, long, and striated?

A

Skeletal

25
Q

Which characteristic of the muscle tissue allows an electrical wave called an action to move along the entire length of the muscle cell resulting in muscle contraction?

A

Excitability

26
Q

What is the rope shaped connective tissue that ties muscles to bone?

A

Tendon

27
Q

What is the contractile unit of myofibrils?

A

Sarcomere

28
Q

Which ions does the sodium-potassium pump move inside the cell?

A

Potassium

29
Q

What happens after the voltage activated calcium gated channels open and calcium ions rush into the axon terminal?

A

Acetylcholine is released into the synaptic cleft

30
Q

Which mechanism of the ATP production uses the breakdown of glucose or other nutrients in the presence of oxygen to produce carbon dioxide, water, and ATP?

A

Aerobic respiration

31
Q

Which type of muscle fibers fatigue more quickly than the others because anaerobic glycolysis produces less ATP per glucose molecule than aerobic respiration?

A

Fast glycolytic fibers

32
Q

What is the name of the age related muscular atrophy?

A

Sarcopenia

33
Q

What is the insertion of the biceps brachial muscle?

A

Radius

34
Q

In a group of muscles that create a movement, the ___ works together with the prime mover

A

Synergist

35
Q

Which class of levers is used when raising yourself on your toes where the force is applied through the Achilles tendon in the heel?

A

Second class lever

36
Q

What is the shape of the most skeletal muscles in the body?

A

Parallel

37
Q

Which muscles fascicles run at an angle to the midline of the body?

A

Oblique

38
Q

Which tongue muscle originates on the Styloid bone and allows upward and backward motion?

A

Styloglossus

39
Q

Which muscle elevates the larynx’s thyroid cartilage?

A

Thyrohyoid

40
Q
A

A&P (9 decks)

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