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Fall 2022 > Anatomy Lab Week 2 > Flashcards

Anatomy Lab Week 2 Flashcards

1
Q

Long head of biceps brachii m. Origin

A

Supraglenoid tubercle above the glenoid cavity of the scapula . Makes sharp turn at humeral head and continues course in intertubercular suculus.

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2
Q

Long head of biceps brachii m. Insertion

A

Unites with short head of biceps brachii at anterior side of humerus and attaches to radial tuberosity
Distal end inserts at deep fascia of forearm

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3
Q

Long head of biceps brachii m. Action

A

Abduction of arm, inward rotation, flexion, supination

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4
Q

Long head of biceps brachii m. Innvertation and blood supply

A 
Musculocutaneous nerve (C5-C6), branch of brachial plexus
Many arteries
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5
Q

Short head of biceps brachii m. Origin

A

Arises at apex of Coracoid process of scapula, partly blends with origin tendon of the coracobrachialis

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6
Q

Short head of biceps brachii m. Insertion

A

Attach to Anterior side of humerus to radial tuberosity with the long head. Distal part inserts deep into fascia of forearm

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7
Q

Short head of biceps brachii m. Action

A

Adduction of arm, flexion of arm, flexion of elbow, supination

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8
Q

Short head of biceps brachii m. Innervation and blood supply

A

Supplied by musculocutaneous nerve (C5-C6), branch of brachial plexus
Many arterial branches

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9
Q

Brachialis m. Origin

A

Distal half of anterior surface of humerus

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10
Q

Brachialis m. Insertion

A

Coronoid process of the ulna, tuberosity of ulna

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11
Q

Brachialis m. Action

A

Strong flexion of forearm at elbow joint

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12
Q

Brachialis m. Innervation and blood supply

A 
Musculocutaneous nerve (C5-C6), radial nerve (C7)
Brachial artery, radial recurrent artery
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13
Q

Brachioradialis m. Origin

A

Lateral supracondylar ridge of humerus, lateral inter muscular septum of arm

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14
Q

Brachioradialis m. Insertion

A

Proximal to styloid process of radius

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15
Q

Brachioradialis m. Action

A

BrachioRadialis follows the BR rule

It’s the Beer mug Raising muscle (flexes elbow, strongest when wrist is held for holding a beer mug)

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16
Q

Brachioradialis m. Innervation and blood supply

A 
Radial nerve (C5-C6)
Radial artery, radial recurrent arteries, radial collateral artery
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17
Q

Coracobrachialis m. Origin

A

Coracoid process of scapula

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18
Q

Coracobrachialis m. Insertion

A

Anteromedial surface of humeral shaft

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19
Q

Coracobrachialis m. Action

A

Adduction and flexion of arm at shoulder joint

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20
Q

Coracobrachialis m. Innervation and blood supply

A

Muscular branches of brachial artery

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21
Q

Pectoralis major m. Origin

A

Clavicular part: anterior surface of medial half of clavicle
Sternocostal part: anterior surface of sternum, costal cartilages of ribs 1-6
Abdominal part: anterior layer or rectus sheath

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22
Q

Pectoralis major m. Insertion

A

Crest of greater tubercle of humerus

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23
Q

Pectoralis major m. Action

A

Shoulder joint: arm adduction, arm internal rotation, arm flexion (clavicular head), arm extension (sternocostal head)
Scapulothoracic joint: draws scapula anterior inferiorly

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24
Q

Pectoralis major m. Innervation and blood supply

A

Lateral and medial pectoral nerves (C5-T1)

Pectoral branches of thoracoacromial artery, perforating branches of internal thoracic artery

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25
Q

Pectoralis minor m. Origin

A

Anterior surface, costal cartilages of ribs 3-5. Located deeply to the pectoralis major

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26
Q

Pectoralis minor m. Insertion

A

Medial border and corocoid process of scapula

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27
Q

Pectoralis minor m. Action

A

Scapulothoracic joint: draws scapula anteroinferiorlly, stabilizes scapula on thoracic wall

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28
Q

Pectoralis minor m. Innervation and blood supply

A

Medial and lateral pectoral nerves (C5-T1)

Thoracoacromial a. (Pectoral and deltoid branches), superior thoracic a., lateral thoracic a.

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29
Q

Pronator teres m. Origin

A 
Humeral head (superficial head) originates from the medial supracondylar ridge of humerus
Ulnar head (deep head) originates from coronoid process of ulna.
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30
Q

Pronator Teres m. Insertion

A

Lateral surface of radius (distal to superior)

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31
Q

Pronator Teres m. Action

A

Pronation of forearm at the proximal radio ulnar joint, flexion of the forearm at the elbow joint

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32
Q

Pronator Teres m. Innervation and blood supply

A 
Median nerve (C6, C7)
Branches of brachial, radial and ulnar arteries
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33
Q

Serratus anterior m. Origin

A

Superior part: ribs 1-2, intercostal fossa
Middle part: ribs 3-6
Inferior part: ribs 7-8/9

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34
Q

Serratus anterior m. Insertion

A

Superior part: anterior surface of scapula
Middle part: arterial surface of medial border of scapula
Inferior part: anterior surface of inferior angle and medial border of scapula

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35
Q

Serratus anterior m. Action

A

Scapulothoracic joint: draws scapula anterolaterally, suspends scapula in thoracic wall, rotates scapula (draws inferiorly angle laterally )

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36
Q

Serratus anterior m. Innervation and blood supply

A

Long thoracic nerve (C5-C7)
SALT stands for Serratus Anterior-Long Thoracic & C5,6,7 raise your arms to heaven

Superior and lateral thoracic arteries, Thoracodorsal artery branches

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37
Q

Supinator m. Origin

A

Lateral epicondyle of humerus, radial collateral ligament, annular ligament, supinator crest of ulna

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38
Q

Supinator m. Insertion

A

Lateral, posterior, anterior surfaces of proximal third of radius

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39
Q

Supinator m. Action

A

Proximal radio ulnar joint; forearm supination

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40
Q

Supinator m. Innervation and blood supply

A

Posterior interosseous nerve (C7,C8)

Radial recurrent artery, posterior interosseous artery, posterior interosseous recurrent artery

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41
Q

Intercostobrachial n. Origin

A

Second intercostal nerve

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42
Q

Intercostobrachial n. Course

A

Pierces the chest wall anterior to serratus anterior muscle

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43
Q

Intercostobrachial n. Supply

A

Skin of overlying second intercostal space, medial arm and forearm

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44
Q

Lateral cord of brachial plexus n. Origin

A

Anterior divisions of the superior and middle trunks of brachial plexus

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45
Q

Lateral cord of brachial plexus n. Course

A

Running inferolateral within the axilla, lateral to the Axillary artery

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46
Q

Lateral cord of brachial plexus n. Branches

A

Lateral pectoral, Musculocutaneous, and lateral portion of the median nerves

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47
Q

Lateral cord of brachial plexus n. Supply

A

Sensory Innervation for the skin of the lateral palmar digits and surfaces of the hand, and lateral skin of the forearm. Motor Innervation is to anterior compartment muscles of the arm, thenar muscles, and two lumbricals of the hand

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48
Q

Lateral antebrachial cutaneous n. Origin

A

Musculocutaneous nerve (C5-C6)

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49
Q

Lateral antebrachial cutaneous n. Course

A

Lateral inter muscular septum between the biceps and brachialis muscle

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50
Q

Lateral antebrachial cutaneous n. Supply

A

Skin of lateral forearm

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51
Q

Lateral pectoral n. Origin

A

Lateral cord of brachial plexus

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52
Q

Lateral pectoral n. Course

A

Runs anteriorly just superior and medial to the pectoralis minor muscle and pierces the pectoralis major muscle

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53
Q

Lateral pectoral n. Branches

A

Ansa pectoralis

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54
Q

Lateral pectoral n. Supply

A

Motor Innervation to the pectoralis minor and major muscles

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55
Q

Lateral root of median n. Origin

A

Lateral cord of brachial plexus

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56
Q

Lateral root of median n. Course

A

Combines with its corresponding medial root from the medial cord of brachial plexus to form to median nerve

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57
Q

Lateral root of median m. Supply

A

Motor Innervation to the muscles of anterior compartment of forearm and hand

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58
Q

Long thoracic n. Origin

A

C5,C6,C7 roots of brachial plexus

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59
Q

Long thoracic n. Course

A

Runs inferiorly down the lateral margin of the ribs

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60
Q

Long thoracic n. Supply

A

Motor Innervation to serratus anterior muscle

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61
Q

Lower Subscapular n. Origin

A

Posterior cord of brachial plexus

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62
Q

Lower Subscapular n. Course

A

Inferiorly along posterior walls of axilla

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63
Q

Lower Subscapular n. Supply

A

Motor Innervation to Teres major and Subscapularis muscles

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64
Q

Medial cord of brachial plexus n. Origin

A

Anterior division of inferior trunk of brachial plexus

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65
Q

Medially cord of brachial plexus n. Course

A

Runs inferolateral within the axilla, medial to the Axillary artery

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66
Q

Medial cord of brachial plexus n. Branches

A

Medial pectoral nerve, medial brachial cutaneous nerve, medial antebrachial cutaneous nerve, ulnar nerve, medial half of median nerve

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67
Q

Medial cord of brachial plexus n. Supply

A

Sensory Innervation for skin of palmar and medial surfaces of the hand, the tips of the digits, and anteromedial surfaces of the arm and forearm. Motor Innervation to muscles of the hand, anterior compartment muscles of forearm, and pectoralis muscle

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68
Q

Medial cutaneous n. Of arm origin

A

Medial cord of brachial plexus

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69
Q

Medial cutaneous n. Of arm course

A

Runs inferiorly along the medial wall of arm

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70
Q

Medial cutaneous n. Of arm supply

A

Sensory Innervation to skin on medial surface of arm

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71
Q

Medial cutaneous n. Of forearm origin

A

Medial cord of brachial plexus

72
Q

Medial cutaneous n. Of forearm course

A

Runs inferiorly along medial wall of arm

73
Q

Medial cutaneous n. Of forearm supply

A

Sensory Innervation to skin on anterior surface of arm, ,medial surface of the forearm

74
Q

Medial pectoral n. Origin

A

Medial nerve of brachial plexus

75
Q

Medial pectoral n. Course

A

Runs anteriorly into the pectoralis minor, and then the pectoralis major muscles

76
Q

Medial pectoral n. Supply

A

Motor Innervation to pectoralis minor and major muscles

77
Q

Medial root of median n. Origin

A

Medial cord of brachial plexus

78
Q

Medial root of median n. Course

A

Combines with corresponding lateral root from lateral cord of brachial plexus to form median nerve

79
Q

Medial root of median n. Supply

A

Motor Innervation to anterior compartment of forearm and hand

80
Q

Median n. Origin

A

Lateral and medial cords of brachial plexus

81
Q

Median n. Course

A

In the arm and cubical fossa, travels adjacent to the brachial artery. In forearm, posterior to flexor digitorum superficialis and anterior to flexor digitorum Profundus. Accompanied by anterior interosseous artery

82
Q

Median n. Branches

A

Muscular branches to Pronator Teres, flexor carpi radialis, palmaris longus, and flexor digitorum superficialis, vasomotor nerve to brachial artery, articular branches to elbow and proximal radioulnar joints , anterior interosseous nerve, palmar cutaneous branches, medial and lateral divisions

83
Q

Medial n. Branches supply

A

Sensory and motor Innervation to wrist, elbow and inter carpal joints, the anterior muscles of forearm, muscles of digits, skin of the palm, and thenar eminence

84
Q

Musculocutaneous n. Origin

A

Lateral cord of brachial plexus (C5-C7)

85
Q

Musculocutaneous n, course

A

Accompanies third party of Axillary artery in lower part of axilla, pierces coracobrachialis to enter front of arm and descends between biceps brachii and brachialis muscle

86
Q

Musculocutaneous n. Branches

A

Lateral antebrachial cutaneous nerve, muscular and articular branches

87
Q

Musculocutaneous n. Supply

A

Motor Innervation to flexor muscles of arm, sensory Innervation to skin of lateral forearm, elbow joint

88
Q

Posterior cord of brachial plexus n. Origin

A

Posterior divisions of superior, inferior, and middle trunks of brachial plexus

89
Q

Posterior cord of brachial plexus n. Course

A

Runs inferolateral within the axilla, posterior to Axillary artery

90
Q

Posterior cord of brachial plexus n. Branches

A

Upper Subscapular, Thoracodorsal, lower Subscapular, Axillary and radial nerves

91
Q

Posterior cord of brachial plexus n. Supply

A

Sensory Innervation for skin of posterolateral of hand, and posterior and lateral skin of arm and forearm. Motor Innervation to posterior compartment muscles of arm and forearm and muscles of posterior Axillary region

92
Q

Ulnar n. Origin

A

Medial cord of brachial plexus (C7-T1)

93
Q

Ulnar n. Course

A

Descends on medial side of brachial artery, pierces inter muscular septum to enter posterior arm. Passes behind medial epicondyle of humerus to descend in the forearm. Enters the palmar aspect of the hand

94
Q

Ulnar n. Branches

A

Muscular and cutaneous branches (palmar cutaneous branch, dorsal cutaneous branch, and digital branches) and superficial and deep branches

95
Q

Ulnar n. Supply

A

Medial half of flexor digitorum profundus and flexor carpi ulnaris, palmris brevis, and most intrinsic hand muscles, skin of medial palmar and dorsal aspect of the hand, and medial one and a half digits

96
Q

Upper Subscapular n. Origin

A

Posterior cord of brachial plexus

97
Q

Upper Subscapular n. Course

A

Runs medially in posterior axilla toward Subscapularis muscle

98
Q

Upper Subscapular n. Supply

A

Motor innveration to Subscapular muscle

99
Q

Superior thoracic a. Origin

A

Axillary artery

First part of Axillary a.

100
Q

Axillary a. Arterial Parts

A

First part- superior thoracic a.
Second part- thoracoacromial a., lateral thoracic a.
Third part- Subscapular a. (Circumflex scapular a. And Thoracodorsal a.), posterior circumflex a., anterior humeral a.

101
Q

Superior thoracic a. Course

A

Anteromedially, between pectoralis minor and major muscles

102
Q

Superior thoracic a. Supply

A

Pectoralis major and minor muscles, serratus anterior and intercostal muscles

103
Q

Thoracoacromial a. Origin

A

Axillary after (second part)

104
Q

Thoracoacromial a. Course

A

Short course through clavipectoral fascia

105
Q

Thoracoacromial a. Branches

A

Pectoral, acromial, clavicular, and deltoid branches

106
Q

Thoracoacromial a. Supplies

A

Clavicular and acromial part of deltoid muscle, inferior clavicle, acromion, and skin overlying the pectoral region

107
Q

Lateral thoracic a. Origin

A

Axillary a.

108
Q

Lateral thoracic a. Course

A

Inferiorly along lateral thoracic wall

109
Q

Lateral thoracic a. Branches

A

Lateral mammary branches

110
Q

Lateral thoracic a. Supplies

A

Serratus anterior, pectoral major and minor, and Subscapularis muscles, Axillary lymph nodes

111
Q

Circumflex scapular a. Origin

A

Subscapular artery

112
Q

Circumflex scapular a. Course

A

Along lateral scapular border into infraspinous fossa

113
Q

Circumflex scapular a. Supplies

A

Posterior portion of Teres major and minor muscles, deltoid, long head of triceps brachii, scapula, skin overlying scapula

114
Q

Subscapular a. Origin

A

Axillary artery (third part)

115
Q

Subscapular a. Course

A

Inferior border of Subscapularis muscle, to inferior scapular angle

116
Q

Subscapular a. Branches

A

Circumflex scapular and Thoracodorsal arteries

117
Q

Subscapular a. Supplies

A

Scapular and deltoid regions

118
Q

Anterior circumflex humeral a. Origin

A

Axillary artery (third part)

119
Q

Anterior circumflex humeral a. Course

A

Laterally across the anterior surface of the humerus, at the level of the surgical neck, deep to the coracobrachialis and short head of the biceps brachii muscles

120
Q

Anterior circumflex humeral a. Branches

A

Anastomoses with the posterior circumflex humeral a.

121
Q

Anterior circumflex humeral a. Supplies

A

Deltoid, biceps brachii, coracobrachialis muscles, glenohumeral joint, head of humerus, cutaneous supply to area overlying proximal humerus anteriorly,

122
Q

Brachial a. Arterial parts

A

Deep brachial a./profunda brachii a., inferior ulnar collateral a., radial a., superior ulnar collateral a., ulnar a.

123
Q

Inferior ulnar collateral a. Origin

A

Brachial artery

124
Q

Inferior ulnar collateral a. Course

A

Distally from the anterior to posterior aspect of humerus

125
Q

Inferior ulnar collateral a. Supplies

A

Elbow joint

126
Q

Radial a. Origin

A

Brachial artery

127
Q

Radial a. Course

A

Distally, deep to the brachialradialis muscle along the anterior forearm, to the dorsal aspect of the hand.

128
Q

Radial a. Branches

A

Radial recurrent artery, dorsal carpal, superficial Palmer, and Palmer carpal branches, deep Palmer arch, and princeps pollisis artery

129
Q

Radial a. Supplies

A

Muscles in lateral aspect of anterior forearm, superficial radial nerve, elbow joint, and hand

130
Q

Superior ulnar collateral a. Origin

A

Brachial artery

131
Q

Superior ulnar collateral a. Course

A

Distally along with ulnar n. Along medial aspect of arm

132
Q

Superior ulnar collateral a. Supplied

A

Medial head of triceps brachii muscle, elbow joint, and cutaneous supply to the medial aspect of the arm

133
Q

Ulnar a. Origin

A

Brachial artery

134
Q

Ulnar a. Course

A

Distally and medially to the flexor digitorum superficialis and flexor digitorum profundus muscles. At distal one third of forearm it becomes more superficial and accompanies the ulnar n. Enters the hand via guyons canal

135
Q

Ulnar a. Branches

A

Anterior and posterior ulnar recurrent arteries, common interosseous artery, and muscular branches. Palmar and dorsal carpal branches in hand, carpal arches, deep and superficial palmar arches

136
Q

Ulnar a. supplies

A

Elbow joint, interosseous membrane, radius and ulna. Pronator teres, flexor digitorum superficialis, flexor carpi ulnaris, flexor digitorum profundus muscles

137
Q

Radial recurrent a. Origin

A

Radial artery

138
Q

Radial recurrent a. Course

A

Superiorly to elbow joint

139
Q

Radial recurrent a. Supplies

A

Muscles adjacent to elbow joint

140
Q

Subclavian a. Origin

A

Aortic arch (left) or brachii cephalon trunk (right)

141
Q

Subclavian a.course

A

Left- ascends in superior mediastinum and enter neck
Right- arises in neck
Both course laterally over the neck and over superior surface of first rib

142
Q

Subclavian a. Branches

A

Vertebral, internal thoracic, dorsal scapular arteries, Costocervical and thyrocervical trunks

143
Q

Subclavian a. Supplies

A

Thoracic wall, spinal cord, neck, brain, meninges, upper limb

144
Q

Axillary v. Origin

A

Brachial veins

145
Q

Axillary v. Course

A

Superiorly, from inferior border of Teres major, to external border of first rib

146
Q

Axillary v. Drainage

A

Upper limb, scapular, pectoral regions

147
Q

Basilic v. Origin

A

Medial aspect dorsal venous network

148
Q

Basilic v course

A

Superiorly along medial aspect of arm and forearm

149
Q

Basilic v. Drainage

A

Hand, forearm, arm

150
Q

Cephalic v. Origin

A

Lateral aspect of dorsal venous network of the hand

151
Q

Cephalic v. Course

A

Superiorly along anterolateral forearm and arm

152
Q

Cephalic v. Drainage

A

Hand, forearm, arm

153
Q

Median cubital v, origin

A

Cephalic vein

154
Q

Median cubital v. Course

A

Superomedially to Basilic vein

155
Q

Median cubital v. Drainage

A

Collateral drainage from forearm

156
Q

Breast location

A

Anterior thoracic wall

157
Q

Breast arterial supply

A

Medial mammary branches of perforating branches of internal thoracic artery and lateral mammary branches of lateral thoracic arteries (third part of Axillary artery )

158
Q

Breast venous drainage

A

Medial mammary branches of internal thoracic and lateral mammary branches of lateral thoracic veins

159
Q

Breast Innervation

A

Lateral and anterior cutaneous branches of the 4th to 6th anterior rami or the thoracic spinal nerves

160
Q

Breast lymphatic drainage

A

Axillary (75%), sub clavicular, and parasternal lymph nodes

161
Q

Areola

A

Located at level of 4th intercostal space at the mid clavicular line. Specialized arrangement of sebaceous glands protects skin of breast from irritation and cracking during breast feeding.

162
Q

Lactiferous ducts

A

Responsible for transport of milk produced in lobules of the mammary glands to the nipple

163
Q

Lactiferous sinus

A

Expansion of the terminal end of each Lactiferous duct

164
Q

Nipple

A

Located at level of 4th intercostal space at mid clavicular line. Skin sits on areolar smooth muscle fibers arranged radially and circularly

165
Q

Suspensory ligaments of breast

A

Fibrous strands of connective tissue that extends from dermis of the skin to deep fascia forming bed of breast. Help support the breast

166
Q

Deltopectoral groove origin

A

Located superolateral aspect of the pectoral region and deltoid muscle

167
Q

Deltopectoral groove course

A

Runs from superomedial to inferolateral and contains Cephalic vein which dives deep to pierce the clavipectoral fascia and enter the Axillary vein

168
Q

Deltopectoral triangle

A

Formed between the clavicle above, lateral border or pectoralis major medially and the medial border of the deltoid laterally . Contains investing layers of clavipectoral fascia and the Cephalic vein on its roof which is pierces

169
Q

Costal margin

A

Lower edge of the thorax formed by the bottom edge of the ribcage (7th rib to 10th rib). Diaphragm attaches along

170
Q

Capitulum of humerus

A

Smooth convex projection found on inferolateral aspect of condyle of humerus. Lateral of the two articular projections, the other being the trochlea of humerus. Separated from each other by a shallow groove
Articulates with head of the radius , forming humeroradial joint, contributing to formation of elbow joint

171
Q

Radial tuberosity

A

Oval,elevated area found on anteromedial aspect or proximal part of radius. Located inferior to neck of radius
Insertion site for biceps brachii muscle

172
Q

Subscapular fossa

A

Concave area that inhabits almost entire costal region of scapula . Ridges that travel in inferomedial direction along the fossa. Origin site for Subscapularis muscle

173
Q

Sternum location and bone type

A

Thoracic cage

Flat bone

174
Q

Sternum articulates with

A

Clavicle and costal cartilages

175
Q

Sternum arterial supply

A

Perforating branches of internal thoracic arteries

176
Q

Olecranon process

A

Large superior projection and proximal part of ulna. Curves anteriorly on top, accommodating Olecranon fossa of humerus during forearm extension
Provides origin site for ulnar head of flexor carpi ulnaris , insertion site for anconeous muscle and tendon of triceps brachii muscle, attachment site for ulnar collateral ligament

Fall 2022 (15 decks)

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