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Sum 2014 - Anat Exam 1 > Exam 1 - Pectoral, Shoulder and Axilla regions > Flashcards

Exam 1 - Pectoral, Shoulder and Axilla regions Flashcards

(115 cards)

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1
Q

Using a model or picture - name the parts of the Clavicle. Identify right and left.

A

Sternal end, Shaft, Acromial end, Impression for Costoclavicular ligament, Subclavian groove, Conoid Tubercle and Acromial facet

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2
Q

Using a model or picture - name the parts of the Scapula. Identify right and left.

A

Acromion, Coracoid Process, Glenoid Cavity, Suprascapular notch, Infraspinous fossa, Spine

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3
Q

What are the major superficial muscles of the back?

A

Trapezius, Levator scapulae, Rhomboid minor, Rhomboid major, Deltoid, Teres major, Latissimus dorsi

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4
Q

What are the origins and insertions of the Trapezius?

A

Origins - Occipital protuberance, Nuchal ligament, C7-T12 Spinous processes
Insertions - lateral 1/3 of clavicle, Acromion, Scapular spine

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5
Q

What are the functions of the Trapezius?

A

Elevates and depresses the scapula (depending on which part of the muscle contracts); Rotates the scapula superiorly; retracts scapula

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6
Q

What innervates the Trapezius?

A

Accessory

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7
Q

What is the blood supply for the Trapezius?

A

Transverse Cervical artery

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8
Q

What are the origins of the Latissimus dorsi?

A

Vertebral spines from T7 to the Sacrum. Posterior 1/3 of Iliac Crest. Lower 3 or 4 ribs.

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9
Q

What are the insertions of the Latissimus dorsi?

A

Floor of the Intertubercular groove of the humerus

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10
Q

What are the functions of the Latissimus dorsi?

A

Extends the arm and rotates the arm medially

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11
Q

What innervates the Latissimus dorsi?

A

Thoracodorsal nerve from the posterior cord

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12
Q

What is the blood supply for the Latissimus dorsi?

A

Thoracodorsal artery

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13
Q

What are the origins of Teres major?

A

Dorsal surface of the inferior angle of the Scapula

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14
Q

What are the insertions of Teres major?

A

Crest of the lesser tubercle of the Humerus. Has a very close insertion point to the Latissimus dorsi at the Humerus.

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15
Q

What innervates the Teres major?

A

Lower Subscapular nerve from the Posterior cord

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16
Q

What are the functions of Teres major?

A

Adducts the arm. Medially rotates the arm. Assists in arm extension.

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17
Q

What is the blood supply for Teres major?

A

Circumflex scapular artery

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18
Q

What are the origins for Levator scapulae?

A

Transverse processes of C1-C4

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19
Q

What are the insertions for Levator scapulae?

A

Medial border of the Scapula from the Superior angle to the spine

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20
Q

What are the functions of Levator Scapulae?

A

Elevates the Scapula

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21
Q

What innervates the Levator Scapulae?

A

Dorsal scapular nerve

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22
Q

What supplies blood to the Levator Scapulae?

A

Dorsal scapular artery

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23
Q

What are the origins of Rhomboid minor?

A

Inferior end of the ligamentum nuchae. Spines of C7-T1

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24
Q

What are the insertions of Rhomboid minor?

A

Medial border of the Scapula at the root of the Spine of the Scapula

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25
What are the functions of Rhomboid minor?
Retracts, elevates and rotates the Scapula inferiorly
26
What innervates the Rhomboid minor?
Dorsal scapular nerve
27
What supplies blood to the Rhomboid minor?
Dorsal scapular artery
28
What are the origins of the Rhomboid major?
Spines of T2-T5
29
What are the insertions of the Rhomboid Major?
Medial border of the Scapula at the root of the spine of the Scapula
30
What are the functions of the Rhomboid major?
Retracts, elevates and rotates the scapula inferiorly
31
What innervates the Rhomboid major?
Dorsal scapular nerve
32
What supplies blood to the Rhomboid major?
Dorsal Scapular artery
33
What are the origins of the Deltoid?
Lateral 1/3 of the Clavicle. Acromion. Lower lip of the Crest of the Spine of the Scapula
34
What are the insertions of the Deltoid?
Deltoid tuberosity of the Humerus
35
What are the functions of the Deltoid?
Abducts the arm; Anterior fibers flex and medially rotate the arm; Posterior fibers extend and laterally rotate the arm.
36
What innervates the Deltoid?
Axillary nerve from the Posterior cord
37
What supplies blood to the Deltoid?
Posterior Circumflex Humeral artery
38
What is the Deltoid poor at and needs help with?
Starting to Abduct the arm. The Supraspinatus helps with the first 15 degrees of abduction.
39
What are the origins of the Supraspinatus?
Supraspinatous fossa
40
What are the insertions of the Supraspinatus?
Greater tubercle of the Humerus
41
What are the functions of the Supraspinatus?
Does the first 15 degrees of abduction of the arm
42
What innervates the Supraspinatus?
Suprascapular nerve
43
What supplies blood to the Supraspinatus?
Suprascapular artery
44
What are the origins of the Infraspinatus?
Infraspinatus fossa
45
What are the insertions of the Infraspinatus?
Greater tubercle of the humerus
46
What are the functions of the Infraspinatus?
Laterally rotates the arm
47
What innervates the Infraspinatus?
Suprascapular nerve
48
What supplies blood to the Infraspinatus?
Suprascapular artery
49
What are the origins of Teres minor?
Upper 2/3 of the lateral border of the Scapula
50
What are the insertions of Teres minor?
Greater tubercle of the Humerus.
51
What are the functions of Teres minor?
Laterally rotates the arm
52
What innervates Teres minor?
Axillary nerve
53
What supplies blood to Teres minor?
Circumflex scapular artery
54
What are the origins of the Subscapularis?
Medial 2/3 of the costal surface of the Scapula
55
What are the insertions of the Subscapularis?
Lesser tubercle of the Humerus
56
What are the functions of the Subscapularis?
Medially rotates the arm; Assists extension of the arm
57
What innervates the Subscapularis?
Upper and lower subscapular nerves
58
What supplies blood to the Subscapularis?
Subscapular artery
59
What muscles make up the rotator cuff?
Supraspinatus, Infraspinatus, Subscapularis and Teres minor
60
What are the origins of Pectoralis major?
medial 1/2 of the clavicle; manubrium and body of sternum; costal cartilages of ribs 2-6
61
What are the insertions of Pectoralis major?
Crest of the greater tubercle of the humerus
62
What are the functions of Pectoralis major?
Flexes and adducts the arm; Medially rotates the arm
63
What innervates Pectoralis major?
Medial and lateral pectoral nerves
64
What supplies blood to Pectoralis major?
Pectoral branch of the Thoracoacromial trunk
65
What are the origins of Pectoralis minor?
ribs 3-5
66
What are the insertions of Pectoralis minor?
coracoid process of the Scapula
67
What are the functions of Pectoralis minor?
Draws the Scapula forward, medialward and downward
68
What innervates Pectoralis minor?
Medial pectoral nerve
69
What supplies blood to Pectoralis minor?
Pectoral branch of the Thoracoacromial trunk
70
What are the origins of Subclavius?
First rib and its cartilage
71
What are the insertions of Subclavius?
Inferior surface of the Clavicle
72
What are the functions of Subclavius?
Draws the clavicle (and hence the shoulder) down and forward
73
What innervates Subclavius?
Nerve to Subclavius.
74
What supplies blood to Subclavius?
Clavicular branch of the Thoracoacromial trunk
75
What are the origins of Serratus Anterior?
Ribs 1-8 or 9
76
What are the insertions of Serratus Anterior?
Medial border of the Scapula on its costal (deep) surface
77
What are the functions of Serratus Anterior?
It draws the scapula forward; The inferior fibers rotate the Scapula superiorly
78
What innervates Serratus Anterior?
Long Thoracic nerve
79
What supplies blood to Serratus Anterior?
Lateral Thoracic artery
80
What makes up the boundaries of the Axilla.
Apex – Also known as the axillary inlet, this is formed by lateral border of the first rib, superior border of scapula, and the posterior border of the clavicle. Lateral wall - Formed by intertubecular groove of the humerus. Medial wall - Consists of the serratus anterior and the thoracic wall (ribs and intercostal muscles). Anterior wall - Contains the pectoralis major and the underlying pectoralis minor and the subclavius muscles. Posterior wall - Formed by the subscapularis, teres major and latissimus dorsi.
81
What is the nickname for Serratus Anterior?
Boxers muscle
82
What are the boundaries for the Axillary artery?
Starts at the Subclavian as it passes the first rib then ends at the inferior border of Teres major as it turns into the Brachial artery.
83
Where are the three parts of the Axillary artery?
1st part - First rib to Pectoralis minor. 2nd part - Posterior to pectoralis minor 3rd part - Lateral border of Pectoralis minor to inferior border of Teres major
84
What artery comes off of the first part of the Axillary artery?
Superior Thoracic artery
85
What arteries come off of the second part of the Axillary artery?
Thoracoacromial and Lateral Thoracic arteries
86
What arteries come off of the third part of the Axillary artery?
Subscapular (thoracodorsal and circumflex scapular), Anterior humeral circumflex and Posterior humeral circumflex arteries
87
What are the names of the 5 parts of the Brachial Plexus?
Roots, Trunks, Divisions, Cords, Branches
88
What is the root of the Brachial Plexus?
Anterior Primary Ramus C5-T1
89
What are the Trunks of the Brachial Plexus?
Superior, Middle, Inferior
90
What are the Divisions of the Brachial Plexus?
Anterior and Posterior
91
What are the Cords of the Brachial Plexus?
Medial, Lateral and Posterior
92
What are the Terminal Branches of the Brachial Plexus?
Musculocutaneous nerve, Median nerve, Ulnar nerve, Axillary nerve, and Radial nerve
93
Where does the Dorsal Scapular nerve come off in the Brachial Plexus?
C5 root
94
Where does the Long Thoracic nerve come off in the Brachial Plexus?
The Long Thoracic is a combination of C5, C6 and C7 roots
95
Where does the Subclavian nerve come off in the Brachial Plexus?
The Superior trunk
96
Where does the Suprascapular nerve come off in the Brachial Plexus?
The Anterior Division of the Superior Trunk
97
Where does the Lateral Pectoral nerve come off in the Brachial Plexus?
The Lateral cord
98
Where does the Upper and Lower Subscapular nerves come off in the Brachial Plexus?
The Posterior cord
99
Where does the Thoracodorsal nerve come off in the Brachial Plexus?
The Posterior cord
100
Where does the Medial Pectoral nerve come off in the Brachial Plexus?
The Medial cord
101
Where does the Medial Cutaneous nerve of arm come off in the Brachial Plexus?
The Medial cord
102
Where does the Medial Cutanesous nerve of forearm come off in the Brachial Plexus?
The Medial cord
103
What two cords make up the Median nerve?
The Lateral and Medial cords
104
What cord does the Musculocutaneous nerve come off of?
The Lateral cord
105
What cord does the Axillary nerve come off of?
The Posterior cord
106
What cord does the Radial nerve come off of?
The Posterior cord
107
What cord does the Ulnar nerve come off of?
The Medial cord
108
What nerve innervates the anterior compartment of arm
Musculocutaneous
109
What muscles do the Musculocutaneous nerve innervate?
Coracobrachialis, Biceps brachii and Brachialis.
110
What muscles do the Median nerve innervate?
Pronator teres, Flexor carpi radialis, Palmaris longus, Flexor pollicis longus, Flexor digitorum superficialis, Pronator quadratus, Flexor digitorum profundus (lateral 1/2 to digits 2-3), Thenar muscles and Lumbricals to digits 2-3
111
What nerve innervates the anterior compartment of the forearm
Median nerve and Ulnar nerve
112
What nerve innervates the Posterior compartment of arm?
Radial nerve
113
What nerve innervates the Posterior compartment of forearm?
Radial nerve
114
What muscles do the Radial nerve innervate?
Triceps brachii (long, lateral and short head), Brachioradialis, Extensor carpi radialis longus, Extensor carpi radialis brevis, Anconeus, Supinator, Posterior interosseous, Abductor pollicis longus, Extensor carpi ulnaris, Extensor pollicis brevis, Extensor digiti minimi, Extensor pollicis longus, Extensor indicis, Extensor digitorum
115
What muscles do the Ulnar nerve innervate?
Flexor carpi ulnaris and Flexor digitorum profundus (medial 1/2 to digits 4,5), Palmar interossei, Adductor pollicis, Palmaris brevis, Hypothenar muscles, Lumbricals to digits 4,5, and Dorsal interossei

Sum 2014 - Anat Exam 1 (14 decks)

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