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SAC A&P I > Ch. 10 Muscles > Flashcards

Ch. 10 Muscles Flashcards

1
Q

Prefix means arm

A

Brachi-

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2
Q

Prefix means tongue

A

Gloss-

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3
Q

Prefix means stalk, or stylus

A

Stylo-

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4
Q

Prefix means short

A

Brevi-

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5
Q

Prefix means partial, or half

A

Semi

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6
Q

The muscle extending from the arm to the lateral forearm is the ?

A

Brachioradialis

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7
Q

The muscle name literally meaning below the tongue is ?

A

hypoglossus

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8
Q

The muscle connecting the hyoid bone to the styloid process of the temporal bone is the ?

A

stylohyoid

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9
Q

The shorter of the muscles over the fibula is the ?

A

Peroneus brevis

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10
Q

The hamstring that becomes tendinous midway along its length is the ?

A

Semitendinosus

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11
Q

Your patient has been referred to a physical therapist because of chronic low back pain. Which of these muscle groups would you expect the therapist to target most?

1) Pectorals
2) Rhomboids
3) Quadriceps
4) Abdominals

A

Abdominals

Because the erector spinae muscles are relatively small and ill-equipped for the job of keeping the spine erect, the abdominal muscles play an important role in supporting the spine.

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12
Q

You awaken with a “stiff neck,” which causes pain when you turn your head or flex your neck. Which muscle is LEAST likely to be causing the problem?

1) Splenius capitis
2) Platysma
3) Sternocleidomastoid
4) Trapezius

A

Platysma

a thin, flat muscle on the anterior neck. Its main role is to tense the skin of the neck, earning it a starring role in razor commercials and the nickname of the “shaving muscle.”

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13
Q

Your elderly patient recovering from knee replacement surgery doesn’t understand why she has to do rehabilitation of the muscles around her knee. How would you explain it to her?

1) “We don’t want to risk you getting a blood clot in the knee area.”
2) “You’ve been off your feet for awhile and we want to make sure you exercise to build your stamina back up.”
3) “The large muscle groups that surround the knee are just as important as the bones in making sure your knee is stable. You need to strengthen them to support your new knee.”
4) “We need to make sure the replacement holds up to your knee moving.”

A

“The large muscle groups that surround the knee are just as important as the bones in making sure your knee is stable. You need to strengthen them to support your new knee.”

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14
Q

Used to show you’re happy

A

Zygomaticus

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15
Q

Used to suck in your cheeks

A

Buccinator

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16
Q

Used in winking

A

Orbicularis oculi

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17
Q

Wrinkles the forehead horizontally

A

Frontalis

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18
Q

The “kissing” muscle

A

Orbicularis oris

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19
Q

Prime mover of jaw closure

A

Masseter

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20
Q

Synergist muscle for jaw closure

A

Temporalis

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21
Q

Prime mover of head flexion; a two-headed muscle

A

Sternocleidomastoid

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22
Q

Prime mover for shoulder flexion and adduction

A

Pectoralis major

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23
Q

Prime mover for shoulder abduction

A

Deltoid

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24
Q

Acting alone, each muscle of this pair turns the head toward the opposite shoulder

A

Sternocleidomastoid

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25
Q

Deep muscles of the thorax that promote the inspiratory phase of breathing

A

External intercostal

26
Q

Muscle that allows you to shrug your shoulders or extend your head

A

Trapezius

27
Q

Muscle that adducts the shoulder and causes extension of the shoulder joint

A

Latissimus dorsi

28
Q

Prime mover of back extension; a deep composite muscle consisting of three columns

A

Erector spinae

29
Q

Fleshy muscle forming part of the posterior abdominal wall that helps maintain upright posture

A

Quadratus lumborum

30
Q

Used to extend hip when climbing stairs

A

Gluteus maximus

31
Q

Inverts and dorsiflexes the foot

A

Tibialis anterior

32
Q

Straplike muscle that is a weak thigh flexor; the “tailor’s muscle”

A

Sartorius

33
Q

Wrist flexor that follows the ulna

A

Flexor carpi ulnaris

34
Q

Muscle that extends the fingers

A

Extensor digitorum

35
Q

Muscle that flexes the fingers

A

Flexor digitorum superficialis

36
Q

Muscle that allows you to bend (flex) the elbow

A

Biceps brachii

37
Q

Muscle that extends the elbow

A

Triceps brachii

38
Q

Most flexor muscles are located on the ___ aspect of the body.

A

Anterior

39
Q

The extrinsic muscles of the hand originate on the ___.

A

Forearm

40
Q

The triceps surae (gastrocnemius and soleus) insert in common into the ___ tendon.

A

Calcaneal

41
Q

Most extensors are located on the ___ aspect of the body.

A

Posterior

42
Q

The bulk of the tissue of a muscle tends to lie ___ to the part of the body that it moves.

A

Proximal

43
Q

Head muscles that insert on a bone include:

1) Zygomaticus
2) Masseter
3) Buccinator
4) Temporalis

A

All of them

44
Q

Lateral flexion of the torso invloves:

1) Erector spinae
2) Rectus abdominis
3) Quadratus lumborum
4) External oblique

A

Erector spinae, Quadratus lumborum, & External oblique

45
Q

A muscle that assists the muscle primarily responsible for a given action is a(n) _______.

A

Synergist

46
Q

A muscle whose name ends in the suffix -glossus would be found attached to the _______.

A

Tongue

47
Q

Straight muscles, with fibers that run parallel to an imaginary line such as the long axis of the body, are called _______.

A

Rectus

48
Q

The muscular wall of the abdomen is composed of _______.

A

External oblique and rectus muscles

49
Q

The major abductor muscle of the upper arm is the _______.

A

Deltoid

50
Q

The attachment site of a muscle’s tendon to the more-movable bone is called the _______.

A

Insertion

51
Q

The extensor digitorum muscle is an example of a _______ muscle.

A

Pennate

52
Q

The masseter is innervated by the ? nerve.

A

Trigeminal

53
Q

The _______ nerve innervates all of the extrinsic tongue muscles.

A

Hypoglossal

54
Q

Which of the following muscles aids inspiration by lifting the first two ribs?

1) Rectus abdominis
2) Scalenes
3) Diaphragm
4) Internal intercostals

A

Scalenes

55
Q

Which muscle flexes and rotates the lumbar region of the vertebral column?

A

Rectus abdominis

56
Q

The ? is a synergist of the triceps brachii in forearm extension.

A

Anconeus

57
Q

What muscle adducts the the fingers and wrist?

A

Flexor carpi ulnaris

58
Q

The prime mover for flexion of the thigh is the ? muscle.

A

Iliopsoas

59
Q

The ? nerve innervates the sartorius.

A

Femoral

60
Q

The _______ is the prime mover of dorsiflexion of the foot.

A

Tibialis anterior

61
Q

Shin splints are caused by inflammation of the anterior compartment muscles such as the ?

A

Tibialis anterior

SAC A&P I (13 decks)

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