Ch 50 Consolidated Regions and Musculature of Upper Limb Flashcards
(86 cards)
1
Q
Regions of the upper limb (8 items)
A
Pectoral Region
Shoulder
Axilla
Arm
Elbow
Forearm
Wrist
Hand
2
Q
“Humerus”
A
shoulder
3
Q
“axilla”
A
armpit
4
Q
“brachium”
A
arm
5
Q
“cubitis”
A
elbow
6
Q
“antebrachium”
A
forearm
7
Q
“carpus”
A
wrist
8
Q
“manus”
A
hand
9
Q
“palma”
A
palm
10
Q
“digiti manus”
A
fingers
11
Q
“pollex”
A
thumb
12
Q
The upper limb is connected to the trunk by the _ _
A
shoulder girdle
13
Q
The shoulder girdle is a C shaped ring made of 5 bones:
A
Manubrium
Right and Left Scapulae
Right and Left Clavicles
14
Q
Pectoral region muscles:
A
Pectoralis major
Pectoralis minor
Serratus anterior
15
Q
The 6 muscles in the shoulder group are
A
Deltoid
Supraspinatus
Infraspinatus
Teres minor
Subscapularis
Teres major
16
Q
The 4 muscles involved with the rotator cuff are
A
Supraspinatus
Infraspinatus
Teres minor
Subscapularis
think SITS
17
Q
The 4 muscles in the arm group are
A
Triceps brachii (long, lateral, medial head)
Biceps brachii (long and short head)
Coracobrachialis
Brachialis
18
Q
The 4 muscles in the anterior superficial forearm group are
A
Pronator teres
Flexor carpi radialis
Palmaris longus
Flexor carpi ulnaris
19
Q
Anterior intermediate forearm muscle: (1 item)
A
Flexor digitorum superficialis
20
Q
The 3 muscles in the anterior deep forearm group are
A
Flexor pollicis longus
Flexor digitorum profundus
Pronator quadratus
21
Q
The 7 muscles in the Posterior superficial forearm group are
A
Brachioradialis
Extensor carpi radialis longus
Extensor carpi radialis brevis
Extensor digitorum
Extensor digiti minimi
Extensor carpi ulnaris
Anconeus
22
Q
The 5 muscles in the posterior deep forearm group are
A
Supinator
Abductor pollicis longus
Extensor pollicis brevis
Extensor pollicis longus
Extensor indicis
23
Q
The 3 sub-groups of the hand muscles are
A
Thenar
Hypothenar
Small hand
24
Q
Thenar muscles (4 items)
A
Abductor pollicis brevis
Flexor pollicis brevis
Opponens pollicis
Adductor pollicis
25
Hypothenar muscles (4 items)
Abductor digiti minimi
Flexor digiti minimi brevis
Opponens digiti minimi
Palmaris brevis
26
Small hand muscles (3 items)
Lumbricals 1-4
Dorsal interossei 1-4
Palmar interossei 1-4
27
Pectoralis major
Group
Action
Innervation
Pectoral Group
ADDuct, medially rotate, and flex arm at shoulder.
Medial pectoral nerve+
Lateral pectoral nerve
28
Pectoralis minor
Group
Action
Innervation
Pectoral
Depress scapula
Medial pectoral nerve
29
Serratus anterior
Group
Action
Innervation
Pectoral
Upward rotation of scapula
Long thoracic nerve
30
Deltoid
Action
Innervation
Flex, extend, medially and laterally rotate, and abduct arm at shoulder
Axillary nerve
31
Supraspinatus
Action
Innervation
Abduct arm at shoulder
Suprascapular nerve
32
Infraspinatus
Action
Innervation
Lateral rotation of arm at shoulder
Suprascapular nerve
33
Teres minor
Group
Action
Innervation
Shoulder
Lateral rotation of arm at shoulder
Axillary nerve
34
Subscapularis
Group
Action
Innervation
Shoulder
Medial rotation of arm at shoulder
Upper and lower subscapular nerves
35
Teres major
Group
Action
Innervation
Shoulder
ADDuct and medially rotate arm at shoulder
Lower subscapular nerve
36
Triceps brachii (long, lateral, and medial head)
Group
Action
Innervation
Arm group
Extend forearm at elbow
Radial nerve
37
Biceps brachii (long and short head)
Action
Innervation
Flex and supinate forearm at elbow
Musculocutaneous nerve
38
Coracobrachialis
Group
Action
Innervation
Arm group
Flex arm at shoulder
Musculocutaneous nerve
39
Brachialis
Action
Innervation
Flex forearm at elbow
Musculocutaneous nerve
40
Pronator teres
Group
Action
Innervation
Anterior Superficial Forearm
Pronate forearm at elbow
Median nerve
41
Flexor carpi radialis
Group
Action
Innervation
Anterior Superficial Forearm
Flex and ABDuct hand at wrist
Median nerve
42
Palmaris longus
Group
Action
Innervation
Anterior Superior Forearm
Flex hand at wrist
Median nerve
43
Flexor carpi ulnaris
Group
Action
Innervation
Anterior Superficial Forearm
Flex and ADDuct hand at wrist
Ulnar nerve
44
Flexor digitorum superficialis
Group
Action
Innervation
Anterior Intermediate Forearm (all alone)
Flex digits 2-5
Median nerve
45
Flexor pollicis longus
Action
Innervation
Flex thumb
Anterior interosseous nerve (AIN)
46
Flexor digitorum profundus
Group
Action
Innervation
Anterior Deep Forearm
Flex digits 2-5
AIN +
Ulnar nerve
47
Pronator quadratus
Group
Action
Innervation
Anterior Deep Forearm
Pronate hand at wrist
AIN
48
Brachioradialis
Group
Action
Innervation
Posterior Superficial Forearm
Flex forearm at elbow
Radial nerve
49
Extensor carpi radialis longus
Action
Innervation
Extend and abduct hand at wrist
Radial nerve
50
Extensor digitorum
Group
Action
Innervation
Posterior Superficial Forearm
Extends digits 2-5
Posterior interosseous nerve (PIN)
51
Extensor digiti minimi
Group
Action
Innervation
Posterior Superficial Forearm
Extend digit 5
PIN
52
Extensor carpi ulnaris
Group
Action
Innervation
Posterior Superficial Forearm
Extend and ADDuct hand at wrist
PIN
53
Anconeus
Group
Action
Innervation
Posterior Superficial Forearm
Extend forearm at elbow
Radial nerve
54
Supinator
Group
Action
Innervation
Deep Posterior Forearm
Supinate forearm at elbow
PIN
55
Abductor pollicis longus
Action
Innervation
Abduct thumb
PIN
56
Extensor pollicis brevis
Group
Action
Innervation
Posterior Deep Forearm
Extend thumb
PIN
57
Extensor pollicis longus
Group
Action
Innervation
Postrior Deep Forearm
Extend thumb
PIN
58
Extensor indicis
Action
Innervation
Extend index finger
PIN
59
Compartments of the arm: (3 items)
Anterior, medial, posterior
60
Deep to skin and subcutaneous tissue is the _____ _____ which forms a tubular investment for the muscles of the arm.
Has inward extensions which course between muscles to the humerus
Brachial fascia
61
Three inward extensions of brachial fascia
Lateral intermuscular septum
Medial intermusuclar septum, anterior lamina
Medial intermuscular septum, posterior lamina
62
The ___ ___ is a depression on the anterior aspect of the elbow
Cubital fossa
63
Cubital fossa boundaries
Lateral:
Medial:
Superior:
Brachioradialis
Pronator teres
Imaginary line between the medial and lateral epicondyles of the humerus
64
The two muscles that make the floor of the cubital fossa are
Supinator and Brachialis
65
4 contents of cubital fossa (lateral to medial)
Radial nerve and its terminal branches
Tendon of biceps brachii muscle
Brachial artery and its terminal branches
Median nerve
66
The ____ is the portion of the upper limb distal to the forearm
Hand
67
Areas of the hand (4)
Palm
Thenar - ball of the thumb
Hypothenar - ball of the little finger
Fingers
68
Numbers and names of fingers
digit 1 = thumb (pollex)
digit 2 = index
digit 3 = middle
digit 4 = ring
digit 5 = little
69
The hand has ____ carpal bones arranged in two rows
_____ row of ____
_____ row of ____
8
Proximal; 4
Distal; 4
70
From lateral to medial, the proximal row consists of the following carpal bones (4)
Scaphoid
Lunate
Triquetrum
Pisiform
Straight line to pinky
71
From lateral to medial, the distal row consists of the following carpal bones(4)
Trapezium
Trapezoid
Capitate
Hamate
Here comes the thumb (going backwards to what's above)
72
The carpal bones are arranged in the form of an ____, which is _____ anteriorly
arch, concave
73
The ____ _____ is a triangular connective tissue membrane between the subcutaneous tissue of the palm and the tendons of the palm
Palmar Aponeurosis
74
True or false
The apex of palmar aponeurosis is the insertion of the palmaris longus muscle and it is fused with underlying flexor retinaculum
True
75
True or false
The base of palmar aponeurosis attaches via pretendinous bands to the fibrous digital sheaths of digits 3 to 5
False, digits 2 to 5
76
The _____ _____ is a transverse fibrous structure anterior to the carpals
Flexor retinaculum
77
Lateral attachment of flexor retinaculum
Scaphoid and trapezium
78
Medial attachment of flexor retinaculum
Pisiform, triquetrum, hook of hamate
79
Flexor retinaculum converts
the arch of the carapal bones into a canal, the carpal canal
80
What is contained in the carpal canal?
9 tendons
2 bursae
1 nerve
81
9 tendons in the carpal canal
4 tendons of flexor digitorum superficials
4 tendons of flexor digitorum profundus
1 tendon of flexor pollicis longus
82
The ____ ____ surrounds the eight tendons of flexor digitorum superficials and flexor digitorum proundus
Ulnar bursa
83
The ____ ____ surrounds the one tendon of flexor pollicis longus
Radial bursa
84
____ ____ ____ are strong connective tissue structures that arch over the tendons flexing the digits
Fibrous digital sheaths
85
____ ____ are loose connective tissue bursae located wherever tendons are retained by retinacula (eg. within the flexor retinaculum and fibrous digital sheaths).
Synovial sheaths
86
The ____ ____ is a transverse fibrous structure located on the posterior surface of the distal forearm that retain the tendons extending the wrist and digits
Extensor retinaculum
