Anatomy Flashcards
1
Q
Discuss superficial fascia
A
- located deep from skin and superficial from deep fascia
- loose connective tissue, lots of fat
- allows skin and other superficial structures to be mobile
- serves as a conduit for superficial structures:
- superficial veins, superficial lymphatic vessels, cutaneous nerves
2
Q
Differentiate Cephalic and Basilic veins
A
- cephalic
- begins at radial confluence of the dorsal venous network of the hand, crosses the anatomical snuff box - ascends forearm and arm anterolaterally - then at clavipectoral trainagle penetrates deep fascia to join the terminal portion of the axillary vein
- at the cubital fossa, a communication courses from the cephalic vein, medially, to join the basilic vein, called the medial cubital vein
- basilic vein
- begins at the ulnar confluence of the dorsal venous network of the hand - ascends forearm and arm anteromedially - then passes through deep fascia near the junction of the inferior and middle thirds of the arm.
- joins veins accompanying the brachial artery to then begin the axillary vein
3
Q
Superficial lymphatics
A
- originate from lymphatic plexuses in the skin throughout hand
- travel with superficial veins
- numerous
- some to cubital lymph nodes (proximal to medial epicondyle and medial to the basilic vein
- some to deltopectoral lymph nodes
- all eventually drain to deep axillary lymph nodes
4
Q
dermatome consistency on hand and posteriorly
A
- C6 - thumb
- C7 - index
- C8 - little finger
posteriorly
- C6 - lateral from elbow
- C7 - near elbow
- C8 - medial from elbow
5
Q
peripheral cutaneous nerve distribution
A
- median nerve distribution
- associated with carpal tunnel
- ulnar nerve distribution
- associated with ulnar nerve entrapment at the elbow
6
Q
Insertion of Subscapularis
A
Lesser Tubercle of Humerus
7
Q
Origin of Subscapularis
A
Subscapular fossa
8
Q
triceps long head origin
A
infreglenoid tubercle of scapula
9
Q
triceps brachii insertion
A
olecranon process of ulna
10
Q
Action of subscapularis
A
Medially rotates arm
Stablizes shoulder joint
11
Q
Origin of serratus anterior
A
Lateral surface of ribs 1-9
12
Q
Insertion of serratus anterior
A
Medial border of scapula
13
Q
triceps brachii blood supply
A
profunda brachii (deep brachial) artery
14
Q
triceps brachi lateral head origin
A
proximal and lateral to radial groove of humerus
15
Q
triceps brachii medial head origin
A
distal and medial to radial groove of humerus
16
Q
Origin of subclavius
A
Superior surface of distal tip, costal cartilage of 1st rib
17
Q
anconeus insertion
A
olecranon process of ulna and shaft of ulna
18
Q
Insertion of subclavius
A
subclavius groove
19
Q
anconeus function
A
assist in extending the elbow, abducts ulna during pronation
20
Q
anconeus blood supply
A
profunda brachii and recurrent interosseus arteries
21
Q
innervation of subclavius
A
Nerve to subclavius
22
Q
action of subclavius
A
depress clavicle
seat claviccle in sternoclavicular joint
23
Q
origin of perctoralis minor
A
ribs 3-5
24
Q
coracobrachialis action
A
flexion and adduction of arm
25
insertion of pectoralis minor
coracoid process of scapula
26
innervation of pectoralis minor
medial pectoral nerve
27
brachialis origin
distal half of anterior surface of humerus
28
brachialis insertion
ulnar tuberosity and coronoid process of ulna
29
action of pectoralis minor
depress
protract
downward rotation of scapula
30
brachialis function
primary flexor of elbow joint
31
brachialis blood supply
radial recurrent artery
32
biceps brachii short head origin
coracoid process of scapula
33
origin of pectoralis major
proximal half of clavicle
lateral margin of sternum and costal cartilage of ribs 1-7
34
biceps brachii insertion
radial tuberosity
35
biceps brachii innervation
musculocutaneous nerve
36
insertion of pectoralis major
lateral margin of the intertubercular groove
37
innervation of pectoralis major
medial and lateral pectoral nerves
38
action of pectoralis major
medial rotation
protraction
elevation
adduction of humerus
39
origin of supraspinatus
supraspinatus fossa
40
insertion of supraspinatus
superior facet of greater tubercle of humerus
41
innervation of supraspinatus
suprascapular nerve
42
action of supraspinatus
abduction of arm
stablize shoulder joint
43
origin of infraspinatus
infraspinatus fossa
44
insertion of infraspinatus
middle facet of greater tubercle of humerus
45
innervation of infraspinatus
suprascapular nerve
46
action of infraspinatus
laterally rotate humerus
stabilize shoulder joint
47
innervation of triceps brachii
radial n.
48
function of triceps brachii
extension of the forearm
49
origin of anconeus
lateral epicondyle of the humerus
50
innervation of anconeus
radial n
51
origin of coracobrachialis
coracoid process of scapula
52
insertion of coracobrachialis
medial surface of mid humerus
53
innervation of coracobrachialis
musculocutaneous nerve
54
blood supply of coracobrachialis
brachial artery
55
innervation of brachialis
musculocutaneous nerve
56
blood supply of brachialis
radial recurrent arteries
57
innervation of subscapularis
upper and lower subscapular nerves
58
innervation of serratus anterior
long thoracic nerve
59
action of serratus anterior
protractor of the scapula
60
origin of teres minor
lateral border of scapula
61
insertion of teres minor
inferior facet of greater tubercle of humerus
62
innervation of teres minor
axillary nerve
63
action of teres minor
laterally rotate humerus
stabilize shoulder joint
64
origin of teres major
posterior surface of the inferior angle of the scapula
65
insertion of teres major
medial lip of intertubercular groove
66
innervation of teres major
lower scapular nerve
67
action of teres major
extends / adducts / medially rotates arm
68
biceps brachii long head origin
supraglenoid tuberosity
69
blood supply biceps brachii
brachial artery
70
origin brachioradialis
lateral supracondylar ridge of humerus
71
insertion brachioradialis
lateral surface fo distal radius
72
innervation of brachioradialis
radial nerve
73
function of brachioradialis
flexion of elbow, small supination role
74
blood supply brachioradialis
radial recurrent artery
75
origin of pronator teres - humeral head
medial epicondyle and medial supracondylar ridge of humerus
76
insertion of pronator teres
lateral surface of radius - midshaft
77
innervation of pronator teres
median nerve
78
function of pronator teres
primary pronator of forearm
79
blood supply of pronator teres
radial and ulnar arteries
80
origin pronator teres- ulnar head
medial side of coronoid process of ulna
81
origin palmaris brevis
medial side of palmar aponeurosis
82
insertion palmaris brevis
skin on medial part of palm
83
innervation palmaris brevis
superficial ulnar nerve
84
function of palmaris brevis
create creases when gripping
85
blood supply palmaris brevis
superficial palmar arch
86
origin abductor pollicis brevis
trapezium
87
insertion of abductor pollicis brevis
radial side of the base of the proximal phalanx of thumb
88
innervation of abductor pollicis brevis
recurrent median n
89
function of abductor pollicis brevis
abducts thumb at CMC joint
90
blood supply of abductor pollicis brevis
superficial palmar branch of radial artery
91
origin of deltoid
lateral 1/3 of clavicle
acromion
spine of scapula
92
insertion of deltoid
deltoid tuberosity of humerus
93
innervation of deltoid
axillary nerve
94
action of deltoid
abducts arm
flexes and medially rotates arm
extends and laterally rotates arm
95
origin of extensor carpi radialis longus
lateral supracondylar ridge of humerus
96
insertion of extensor carpi radialis longus
base of 2nd metacarpal
97
innervation of extensor carpi radialis longus
radial nerve
98
action of extensor carpi radialis
extends and abducts wrist
99
blood supply of extensor carpi radialis longus
radial and radial recurrent artery
100
origin of extensor carpi radialis brevis
common extensor tendon
101
insertion of extensor carpi radial brevis
base of 3rd metacarpal
102
innervation of extensor carpi radialis brevis
deep radial nerve
103
action of extensor carpi radialis brevis
extends and abducts wrist
104
blood supply of extensor carpi radialis brevis
radial and radial recurrent artery
105
origin of extensor digitorum
common extensor tendon
106
insertion of extensor digitorum
extensor expansion
107
innervation of extensor digitorum
posterior interosseous
108
action of extensor digitorum
extends wrist and all joints of the fingers 2-5
109
blood supply of extensor digitorum
posterior interosseous artery
110
origin of extensor digiti minimi
common extensor tendon
111
insertion of extensor digit minimi
extensor expansion of 5th digit
112
innervation of extensor digit minimi
posterior interosseous
113
action of extensor digiti minimi
extends 5th digit
114
blood supply of extensor digiti minimi
posterior interosseous artery
115
origin of extensor carpi ulnaris
common extensor tendon
116
insertion of extensor carpi ulnaris
base of 5th metacarpal
117
innervation of extensor carpi ulnaris
posterior interosseous
118
action of extensor carpi ulnaris
extends and adducts wrist
119
blood supply of extensor carpi ulnaris
posterior interosseous artery
120
origin of supinator
lateral epicondyle of the humerus and proximal ulna
121
insertion of supinator
upper part of radius
122
innervation of supinator
deep radial nerve
123
action of supinator
supinates forearm
124
blood supply of supinator
radial recurrent artery
posterior interosseous artery
125
origin of extensor indicis
lower part of ulna
126
insertion of extensor indicis
extensor expansion of 2nd digit
127
innervation of extensor indicis
posterior interosseous
128
action of extensor indicis
extends all joints of 2nd digit
129
blood supply of extensor indicis
posterior interosseous artery
130
origin of abductor pollicis longus
interosseous membrane
radius and ulna
131
insertion of abductor pollicis longus
base of 1st metacarpal
132
innervation of abductor pollicis longus
posterior interosseous
133
action of abductor pollicis longus
abducts and extends CMC joint of thumb
134
blood supply of abductor pollicis longus
posterior interosseous artery
135
origin of extensor pollicis longus
interosseous membrane of ulna
136
origin of flexor pollicis brevis
trapezium
137
insertion of flexor pollicis brevis
base of the proximal phalanx of thumb
138
innervation of flexor pollicis brevis
recurrent median n
139
function of flexor pollicis brevis
abducts thumb at CMC and MP jointts
140
blood supply of flexor pollicis brevis
superficial palmar branch of radial artery
141
origin opponens pollicis
trapezium
142
insertion of opponens pollicis
radial side of first metacarpal
143
innervation of opponens pollicis
recurrent median n.
144
function of opponens pollicis
abducts, flexes, and medially rotates thumb at CMC joint (opposition)
145
blood supply of opponens pollicis
superficial palmar branch of radial artery
146
origin of adductor pollicis - transverse head
3rd metacarpal
147
insertion of adductor pollicis
ulnar side of the base of proximal phalanx of thumb
148
innervation of adductor pollicis
deep ulnar
149
function of adductor pollicis
adducts thumb at CMS joint (pinch grip)
150
blood supply to adductor pollicis
deep palmar arch
151
origin adductor pollicis - oblique head
base of 2nd and 3rd metacarpals and capitate bone
152
origin of abductor digiti minimi
pisiform
153
insertion of abductor digiti minimi
medial side of the base of the proximal phalanx of 5th digit
154
innervation of abductor digiti minimi
deep ulnar n.
155
function of abductor digiti minimi
abducts MP joint of fifth digit
156
blood supply of abductor digiti minimi
deep palmar branch of ulnar artery
157
origin of flexor digiti minimi
hook (hamulus) of hamate
158
insertion of flexor digiti minimi
medial side of the base of the proximal phalanx of the 5th digit
159
innervation of flexor digiti minimi
deep ulnar n.
160
function of flexor digiti minimi
flexes MP joint of 5th digit
161
blood supply to flexor digiti minimi
deep palmar branch of ulnar artery
162
origin of opponens digiti minimi
hook (hamulus) of hamate
163
insertion of opponens digiti minimi
body of 5th metacarpal
164
innervation of opponens digiti minimi
deep ulnar n.
165
function of opponens digiti minimi
laterally rotates and helps flex CMC joint
166
blood supply to opponens digiti minimi
deep palmar branch of ulnar artery
167
lumbricals origin
tendons of the flexor digitorum profundus
168
lumbricals insertion
extensor expansion
169
lumbricals innervation
3rd-4th lumbricals - deep ulnar
1st-2nd - digital median nerve
170
function of lumbricals
flexes MP joint, extends IP joint
171
blood supply of lumbricals
superficial and deep palmar arches
172
palmar interossei origin
1st - ulnar side of metacarpal 2
2nd - radial side of metacarpal 4
3rd radial side of metacarpal 5
173
palmar interossei insertion
extensor hood of same digit they arise from
174
palmar interossei innervation
deep ulnar n
175
palmar interossei function
adduct respective finger toward 3rd finger (PAD)
176
blood supply to palmar interossei
deep palmar arch
177
dorsal interossei origin
adjacent metacarpal bases and shafts
178
dorsal interossei insertion
extensor expansions
179
dorsal interossei innervation
deep ulnar n
180
dorsal interossei function
abduct respective finger away from 3rd finger (DAB)
181
blood supply to dorsal interossei
deep palmar arch
182
insertion of extensor pollicis longus
base of distal phalanx of thumb
183
innervation of extensor pollicis longus
posterior interosseous
184
action of extensor pollicis longus
extends all joints of thumb
185
blood supply of extensor pollicis longus
posterior interosseous artery
186
origin of extensor pollicis brevis
interosseous membrane
radius
187
insertion of extensor pollicis brevis
base of proximal phalanx of thumb
188
innervation of extensor pollicis brevis
posterior interosseous
189
action of extensor pollicis brevis
extends cmc and mp joints of thumb
190
blood supply of extensor pollicis brevis
posterior interosseous artery
191
flexor carpi radialis origin
medial epicondyle via common tendon
192
flexor carpi radialis insertion
radius
193
flexor carpi radialis innervation
median n.
194
flexor carpi radialis function
flexes and abducts the wrist
195
blood supply to flexor carpi radialis
radial artery
196
origin of palmaris longus
medial epicondyle via common tendon
197
insertion of palmaris longus
palmar aponeurosis
198
palmaris longus innervation
median n
199
palmaris longus action
flexes wrist
200
palmaris longus blood supply
posterior ulnar recurrent a
201
flexor carpi ulnaris origin
medial epicondyle via common tendon
202
flexor carpi ulnaris insertion
pisiform
203
innervation of flexor carpi ulnaris
ulnar n.
204
function of flexor carpi ulnaris
flexes and adducts the wrist
205
blood supply to flexor carpi ulnaris
posterior ulnar recurrent artery
206
flexor digitorum superficialis origin
medial epicondyle via common tendon, humero-ulna, and radial heads
207
flexor digitorum profundus origin
ulna and interosseous membrane
208
flexor digitorum profundus insertion
distal phalanges of fingers 2-5
209
flexor digitorum profundus innervation
median and ulnar n.
210
function of flexor digitorum profundus
flexes all joints of digits 2-5, flexes wrist
211
insertion of flexor digitorum superficialis
middle phalnages of fingers 2-5
212
innervation of flexor digitorum superficialis
median n.
213
function of flexor digitorum superficialis
flexes wrist joint, MP and PIP joints of digits 2-5
214
blood supply of flexor digitorum superficialis
radial and ulnar arteries
215
blood supply of flexor digitorum profundus
anterior interosseous artery, muscular branches of ulnar artery
216
origin of flexor pollicis longus
radius and interosseous membrane
217
insertion of flexor pollicis longus
distal phalanx of thumb
218
innervation of flexor pollicis longus
median n.
219
function of flexor pollicis longus
flexes all joints of the thumb
220
blood supply to flexor pollicis longus
anterior interosseous artery
221
origin of pronator quadratus
distal part of ulna
222
insertion of pronator quadratus
distal and lateral aspect of radius
223
innervation of pronator quadratus
median n.
224
function of pronator quadratus
pronates forearm
225
blood supply to pronator quadratus
anterior interosseous artery
