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HLSC120: Human Anatomy > Chapter 8: Upper Limb > Flashcards

Chapter 8: Upper Limb Flashcards

1
Q

Head of humerus

A

Glenoid cavity

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2
Q

Anatomical neck of the humerus

A

Site of the epiphyseal plate in the humerous

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3
Q

Greater and lesser tubercle

A

Two prejections
- rounded contours of the shoulder

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4
Q

Intertubercular sulcus/ groove

A

Attachment for the tendon of b. brachii

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5
Q

Surgical neck

A

Site of bone facture

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6
Q

Body

A

Main shaft (diaphysis) of the humerus

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7
Q

Deltoid tuberosity

A
  • fought v shaped area
  • site of attachment for the tendon of the deltoid muscle
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8
Q

Capitulum

A

Head of the radius

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9
Q

Trochlea

A
  • accommodates the coronoid process of the ulna
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10
Q

Coronoid fossa

A

Coronoid process of the ulna

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11
Q

Olecranon fossa

A

Olecranon of the ulna

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12
Q

Radial fossa

A

Head of the radius

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13
Q

Medial and lateral epicondyles

A

Attachment for the tendons of the forearm muscles

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14
Q

Radius articulate with the _______ of the humerus

A

Capitulum

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15
Q

What is the muscle insertion for the biceps brachii

A

Radial tuberosity

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16
Q

What side is the ulna on

A

Pinky side

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17
Q

Surface features of the ulna

A
  • Olecranon
  • coronoid process
  • trochlear notch
  • styloid process
  • tuberosity of the ulna
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18
Q

What bones are in the proximal row

A
  • scaphoid
  • lunate
  • triauentrum
  • pisiform
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19
Q

What are the bones in the distal row

A
  • trapezium
  • trapezoid
  • capitate
  • hamate
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20
Q

Humero-ulnar and humero-radial joint is between

A

the trochlea (humerus) and trochlear notch (ulna) and the Capitulum (humerus) and head of the radius

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21
Q

What action does the humero-ulnar and humero-radial joint

A

Pivot action

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22
Q

What kind of joint is the elbow joint

A

Hinge joint

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23
Q

What is the metacarpophalangeal joint

A

Hinge

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24
Q

What type of joint is the interphalageal joint

A

Hinge

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25
Q

Suspination

A
  • palms face anteriorly
  • radius and ulna are parallel
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26
Q

Pronation

A
  • palms face posteriorly
  • radius and ulna cross over each other
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27
Q

What does the Supinator of the forearm do

A

-Moves the hand, wrist, and fingers
- wraps around the proximal radius
- assist the biceps brachii

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28
Q

Pronator teres movement

A

Pronation

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29
Q

Movement of quadratus

A

Pronation

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30
Q

Flexors of the elbow joint (anterior compartment)

A
  • biceps brachii
  • brachialis
  • branchioradialis
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31
Q

Extensors of the elbow joint (posterior compartment)

A
  • triceps brachii
  • anconeus
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32
Q

Biceps brachii

A

O:
Long head- tubercle of scapula
Short head - coracoid process of scapula
I: radial tuberosity

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33
Q

Brachialis

A

O: distal ant. Surface of humerus
I: Ulnar tuberosity and coronoid process of ulna

34
Q

Brachioradialis

A

O: lateral border of a distal end of humerus
I: styloid process of radius

35
Q

Anconeus

A

O: lateral epicondyle of humerus
I: Olecranon of ulna

36
Q

Triceps brachii long head

A

O: tubercle of scalpula
I: Olecranon of ulna

37
Q

Triceps brachii lateral head

A

O: posterior surface of humerus above the radial groove
I: Olecranon of ulna

38
Q

Triceps Brachii of medial head

A

O: entire surface of the numerous to a groove
I: Olecranon of ulna

39
Q

What is the common origin of the anterior compartment

A

Medial epicondyle

40
Q

What are the muscles of the anterior compartment

A
  • pronator teres
  • flexor carpi radilais
  • palmaris longus
  • flexor carpi ulnaris
41
Q

Flexor carping ulnaris

A

Anterior compartment
- flex the wrist joint and adduct the hand at the wrist

42
Q

Palmaris longus

A

Anterior compartment
- flex the hand at the wrist

43
Q

Flexor carpi radialis

A

Anterior compartment
- flexes and abducts hand at the wrist

44
Q

Flexor digitorium superficialis

A
  • crosses over the wrist, MP, and proximal IP joints of fingers 2-5
  • flexes above the joint
45
Q

Flexor policis longus

A

Flexes the MP and IP joints of the thumb

46
Q

Flexor digitorium profundus

A
  • passes to the tips of the fingers
  • flexes the MP, PIP,and DIP joints of finger 2-5
47
Q

Common origin of the posterior compartment

A

Lateral epicondyle

48
Q

Extensor carpi radialis longus

A
  • extends and abducts hand at the wrist
49
Q

Extensor carpi radialis breves

A
  • extends and abducts the hand at the wrist
50
Q

Extensor digitorium

A
  • extends the wrist, MP, PPI, and DIP joints of figures 2-5
51
Q

Extensor digiti minimi

A
  • innervate 5th finger
52
Q

Extensor carpi ulnaris

A
  • extends the wrist and adducts the hand
53
Q

Abductor pollicis longus

A
  • abducts the joints of the thumb and hand
54
Q

Extensor pollicis breves

A
  • extends MP joints of the thumb
55
Q

Extensor pollicis longus

A
  • innervates the joints of the thumb and abducts the hand
56
Q

Extensor indics

A
  • extends the PIP, DIP joints of the index finger
57
Q

Thenar group

A
  • forms the thick, fleshy mass (thenar eminence) at the base of the thumb
58
Q

Hypothenar group

A
  • forms smaller fleshy mass (hypothenar eminence) at the base of the little figure
59
Q

Midpalmar group

A
  • occupies the space between the first two groups
60
Q

Muscles of the thenar group

A
  • flexor pollicis brevis
  • adductor pollicis brevis
  • opponens pollicis
61
Q

Flexor pollicis brevis

A
  • flexes the thumb at the carpometacarpal and metacarphalageal joint
62
Q

Adductor pollicis brevis

A
  • adducts thumb at the carpometacarpal joint
63
Q

Opponens pollicis

A
  • moves the thumb across the Pam to meet any finger
64
Q

Hypothenar group consists of what muscles

A
  • flexor digiti minimi
  • abductor digiti minimi
  • opponens digiti minimi
65
Q

Flexor digiti minimi brevis

A
  • flexes little finger at the carpometacarpal, and MP joints
66
Q

Abductor digiti minimi

A
  • abducts and flexes little finger MP joints
67
Q

Opponens digiti minimi

A
  • move the little finger across the palm to meet the thumb
68
Q

Mid-Palmar group includes what muscles

A
  • lumbrical muscles
  • dorsal interossei muscles
    -palmar interossei
69
Q

Lumbrical muscles

A
  • flexes the MP and extends the PIP and DIP joints of fingers 2-5
70
Q

Dorsal interossei muscles

A
  • located between the metacarpals
  • flex the MP and extends the PIP and DIP joints of figures 2-5
71
Q

Palmar interossei

A
  • adduct each finger at the MP joints, flex each finger at the MP joints and extend each figure IP joint
72
Q

Posterior / dorsal roots

A

Sensory

73
Q

Anterior / ventral roots

A

Motor

74
Q

Brachial plexuses

A
  • networks of nerves that supply the upper limbs
75
Q

Where is the Brachial plexus located

A

C5-T1

76
Q

Branches of spinal nerves from the brachial plexus

A
  • axillary
  • median
  • musculocutaneous
  • radial
  • ulnar
77
Q

Axial nerve

A

Innervates deltoid, teres minor, and superiolateral arm

78
Q

Median nerve

A

Innervates thumb, index figure, middle finger, and 1/2 of ring finger

79
Q

Musculocutaneous nerve

A

Innervates anterior arm muscles

80
Q

Radial nerve

A

Innervates posterior arm

81
Q

Ulnar nerve

A

Innervates forearm muscles and intrinsic hand

HLSC120: Human Anatomy (16 decks)

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