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Anatomy Final Exam > UE Muscle Compart > Flashcards

UE Muscle Compart Flashcards

1
Q

Anterior Compartment of the Arm are responsible for what type of Actions

A

Flexion.

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2
Q

Posterior Compartment of the arm are responsible for what type of actions

A

Extension of the elbow

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3
Q

Anterior compartments of the forearm are responsible for what type of actions

A

Flexion of wrist and fingers, pronation

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4
Q

Posterior Compartments of the Forearm Actions

A

Extension of wrist and fingers, supination

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5
Q

Extrinsic vs Intrinsic Muscle of the hand

A

Intrinsic muscle originate in the hand while the extrinsic muscle has its tendons on the hand but origin is not in the hand.

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6
Q

Where is the origin and insertion of Coracobrachialis

A

O: Coracoid Process of the Scapula
I: medial surface of Humerus shaft

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7
Q

Actions and Innervation of Coracobrachialis

A

Flexor of the arm (shoulder)

INNV: Musculocutaneous

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8
Q

Origin and Insertion of Brachialis

A

O: Anterior Humerus
I: Ulna

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9
Q

Action and Innervation of Brachialis

A

A: Flexor of forearm (elbow)
INNV: Musculocutaneous

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10
Q

Origin and Insertion of Biceps brachii

A

O: Scapula and long head passes through intertubercular sulcus
I: Radial tuberosity

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11
Q

Action and Innervation of Biceps Brachii

A

Action: Flexor and supinator of the forearm
Innv: Musculocutaneous nerve

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12
Q

Muscles that make up the Anterior Arm

A

Coracobrachialis, Brachialis, and Biceps Brachii

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13
Q

If our Musculocutaneous Nerve gets damaged, then we will be unable to do what type of Actions?

A

Flexor of the arm, Flexor and supinator of forearm.

Musculocutaneous Innervates Coracobrachialis, Brachialis, and Biceps Brachii

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14
Q

Action and Innervation of Triceps Brachii

A

Actions: Extensions of forearm (elbow)
Innv: Radial Nerve

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15
Q

What is one thing Brachialis unable to do?

A

Pivot because it has an insertion point to Ulna which has hinge joint only

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16
Q

Location of Radial Nerve in relation to “M”

A

Radial nerve is posterior to M, separated by Axillary Artery

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17
Q

What travels through the triangular interval

A

Radial nerve travels through the triangular interval and will come through in between medial and lateral heads of the triceps on the posterior side of the humerus. It travels with the PROFUNDA artery that supplies the posterior portion on the back side of the arm.

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18
Q

If there is a fracture in the mid shaft of the humerus, physician most likely to check for damage in where?

A

if innervation to the posterior arm was intact or now, because that’s where the radial nerve travels.

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19
Q

What travels through the Quadrangular Space>

A

Axillary nerve travels through that which innervates Deltoid Muscle and Teres minor. QS is located above the Triangular Interval. Also Posterior Circumflex artery travels with it, which is a third division of the axillary artery and was one of them that went around the humerus.

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20
Q

What is/are the muscles of the Posterior Compartment of the arm

A

Triceps Brachii

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21
Q

Anterior to the elbow joint formed by the borders of

A

Brachioradialis muscle (Lateral), Pronator Teres Muscle (medially), and Epicondyles of humerus (Imaginary line on the shaft of the humerus)

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22
Q

Cubital Fossa is made up of

A

Tendons of Biceps muscle, Median Nerve, Brachial Artery (medial to Biceps Tendon)

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23
Q

cubital Fossa is covered by

A

Bicipital Acponeurosis

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24
Q

What travels over the Bicipital Aponeurosis?

A

Median Cubital vein travels over the aponeurosis and connects the cephalic (Lateral) and basilic veins.

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25
Q

what travels directly beneath the brachioradialis?

A

Radial Nerve

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26
Q

What passes posterior to the medial epicondyle?

A

Ulnar nerve

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27
Q

Which is the ONLY nerve that goes through the Cubital Fossa?

A

Median Nerve

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28
Q

Common origin for Superficial Muscles of Anterior Compartment of the forearm

A

near the medial humerus

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29
Q

Action of Flexor Carpi Ulnaris

A

Powerful flexor of wrist and also adducts hand

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30
Q

Innervation of Flexor Carpi Ulnaris

A

Ulnar Nerve

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31
Q

Insertion of Palmaris Longus

A

Attaches to Palmar Aponeurosis of hand. Palmar Aponeurosis is a triangular deep fascia over the palm, extending to the digits.

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32
Q

What muscles of Superficial Anterior foramen are innervated by Median Nerves?

A

Pronator Teres, Flexor carpi Radialis, and Palmaris Longus

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33
Q

Actions of Flexor Carpus Radialis

A

Powerful flexor of wrist, and abducts hand.

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34
Q

Action of Pronator Teres

A

Pronates Foramen and weak flexor of elbow.

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35
Q

Action of Palmaris Longus

A

Tenses skin and fascia of palm during hand movements

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36
Q

Origin and Insertion of Flexor digitorum superficialis

A

O: Medial humerus and radius
I: Middle Phalanges of digits 2-5

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37
Q

Action of Flexor Digitorum Superficialis

A

Flexes digits ar metacarpal-phalangeal joint and PIP

38
Q

Innervation of Flexor Digitorum Superficialis

A

Median Nerve

39
Q

Action of Flexor Digitorum Profundus

A

Flex DIP, PIP, MCP and wrist join.

40
Q

Which muscle gets innervated by both Ulnar and median nerve?

A

Flexor digitorum profundus

41
Q

Origin of Deep muscles of Anterior Compartment

A

forearm and interosseous membrane

42
Q

Insertion and Action of Flexor pollicis longus

A

Inserts on phalanx of thumb and flexes the interphalangeal joint and MCP

43
Q

Action of Pronator quadratus

A

Pronation of forearm

44
Q

Innervation of Pronator quadratus

A

Median Nerve

45
Q

How is Flexor digitorum Profundus different from Flexor digitorum superficialis?

A

Superficialis one can only flex upto PIP, but Profundus can flex PIP and DIP as well.

46
Q

Innervation for Superficial Posterior Compartment of the Forearm

A

Radial Nerve

47
Q

Which muscle is known as the accessory flexor of the elbow?

A

Brachioradialis

48
Q

What Innervates Brachioradialis?

A

Radial Nerve

49
Q

Actions of Extensor Carpi Radialis longus and Radialis Brevis? Innervation?

A

Extends and Abduction of the wrist

INNV: Radial Nerve

50
Q

Insertion of Extensor Carpi Radialis longus and Brevis

A

Run from lateral humerus to lateral metacarpals. Brevis is shorter than longus and bit posterior to it

51
Q

Actions and Innervation of Extensor Carpi Ulnaris

A

Extends and Abducts Wrist

INNV: radial nerve

52
Q

Insertion of Extensor digitorum and digiti minimi

A

Runs from lateral humerus to phalanges of digits 2-5 and 5, respectively

53
Q

Action and Innervation of Extensor Digitorum and Digiti minimi?

A

Extensors of digits 2-5 and 5, respectively.

INNV: Radial Nerve

54
Q

What muscle of the forearm sits posterior to Elbow Joint

A

Anconeus (Superficial Posterior Compartment)

55
Q

Common Innervation of Deep Muscles of Posterior Forearm

A

Radial Nerve

56
Q

Muscles that make up the Superficial Posterior Compartment

A

Extensor Carpi Radialis Longus, Extensor Carpi Radialis Brevis, Extensor Carpi Ulnaris, Extensor digitorum and digiti minimi, Anconeus, and Brachioradialis

57
Q

Insertion of the Extensor Pollicis Longus and Brevis

A

Insert on distal and proximal plalanx of thumb respectively

58
Q

Action of the Extensor Pollicis Longus and Brevis

A

Extend joints of the thumb

59
Q

Action of Extensor Indicis

A

Extends index finger

60
Q

Action of Abductor Pollicis Longus

A

Abducts and extends thumb

61
Q

Action of Supinator

A

Assists biceps brachii to forcibly supinate forearm

62
Q

Contents that make up the Carpal Tennel

A

Tendons of flexor digitorum profundus, Tendons of flexor digitorum superficialis, Tendon of flexor pollicis longus, and Median Nerve

63
Q

ONLY nerve that travels THROUGH the Carpal Tunel

A

Median Nerve

64
Q

What closes off the carpal bones to make it into a carpal tunnel

A

Flexor Retinaculum

65
Q

Effects of the Carpal Tunnel Syndrome

A

Increased pressure in the carpal tunnel due to Carpal Tunnel Syndrome, leads to compression of the median nerve. The distal innervation of the median nerve past the carpal tunnel is where we are going to see deficits related to carpal tunnel syndrome.

66
Q

One place in hand to feel the Radial Artery Pulse

A

Anatomical Snuff Box

67
Q

Boundaries that make up the Anatomical Snuff Box

A

Extensor Pollicis longus and brevis tendons

68
Q

Bones that form the Bone of the Anatomical Snuff Box

A

Scaphoid and Trapezium of Carpals

69
Q

Difference between Extrinsic and Intrinsic Muscles in terms of Innervation

A

Extrinsic Muscles Innervation: Median, Ulnar, and Radial Nerves
Intrinsic Muscles Innervation: Ulnar and Median nerves

70
Q

Main Action of Extrinsic Muscles of the Hand

A

Power Grip

71
Q

Main Action of Intrinsic Muscles of the Hand

A

Fine movement and Precision grip

72
Q

Location and Action of Pulmaris Brevis

A

Very Superficial, medial side of the hand. Small quadrangular muscle over the hypothenar eminence.
Helps to tighten the Palmar aponeurosis and Improve grip.

73
Q

What innervates Palmaris Brevis

A

Ulnar Nerve

74
Q

Origin and Insertion of Adductor Pollicis

A

Origin: midline of the hand; Insertion: thumb

75
Q

Action of Adductor Pollicic

A

Adducts (moves toward the midline) thumb

76
Q

Innervation for Adductor Pollicis

A

Ulnar nerve

77
Q

What muscles make up the Interossei compartment of the hand

A

Interossei muscles run between the metacarpals. Dorsal Interossei (DABB) and Palmar Interossei (PAD) makes up the interossei muscles.

78
Q

How many muscles make up the Dorsal and Palmar interossei? Actions?

A

Dorsal- DABB- 4 muscles- aBduction of digits 2-4

Palmar- PAD- 3 muscles- aDduction of digits 2,4,5

79
Q

Interossei Muscle Innervated by

A

Ulnar Nerve

80
Q

Action of Lumbricals

A

Flexion at MCP point and extensions PIP and DIP joint of digits 2-5.

81
Q

Innervation of Lumbricals

A

Medial 2 muscles innervated Ulnar nerve and lateral 2 muscles are innervated by median nerve.

82
Q

Thumb side lateral to the Lumbricals are innervated by

A

Median Nerve

83
Q

What muscles make up the thenar group

A

Opponens Pollicis, Flexor Pollicis Brevis, and Abductor Pollicis Brevis

84
Q

Innervation of the Thenar Group

A

Median Nerve

85
Q

Action of Opponens Pollicis

A

Opposition of thumb

86
Q

Action of Flexor Pollicis Brevis

A

Flexes Thumb at MCP joint

87
Q

Action of Abductor pollicis Brevis

A

Abducts Thumb at MCP joint

88
Q

When grabbing a water bottle, what muscle is responsible to have that grip around the water bottle?

A

Thenar Group muscles

89
Q

Innervation for the HypoThenar Group

A

Ulnar Nerve

90
Q

Action of Opponens digit minimi

A

Opposition at digit 5

91
Q

Action of Flexor digit minimi brevis

A

Flexes digit 5 at MCP joint

92
Q

Action of Abductor digiti minimi

A

aBductor of digit 5

Anatomy Final Exam (6 decks)

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