Superficial Back, Chest and Brachium Flashcards Preview

Anatomy Muscle Tables > Superficial Back, Chest and Brachium > Flashcards

Flashcards in Superficial Back, Chest and Brachium Deck (21)
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1

Trapezius

O: Occipital region andC2-T12 spines
I: Scapular spine, acromion and lat clavicle
Ax: Ext head/neck; upwardly rotate, elevate, depress and retract scapula
N: Spinal accessory N XI
A: Transverse cervical A

2

Levator Scpaulae

O: C1-C4 transverse processes
I: Sup angle of scapula
Ax: Lat flex neck; downwardly rotate and elevate scapula
N: Dorsal scapular N
A: Dorsal scapular A

3

Rhomboid Minor

O: C7-T1 vertebral spine
I: Sup vertebral border of scapula
Ax: Elevates, retracts and downwardly rotates scapula
N: Dorsal scapular N
A: Dorsal scapular A

4

Rhomboid Major

O: T2-T5 vertebral spines
I: Vertebral border of scapula
Ax: Elevates, retracts and downwardly rotate scapula
N: Dorsal scapular N
A: Dorsal scapular A

5

Latissimus Dorsi

O: T7-L5 vertebral spines, sup sacrum and iliac crest
I: Inferior angle of scapula and medial lip of bicipital sulcus
Ax: compress ribcage; ext, add and int rotate shoulder; depress, retract and downwardly rotate scapula
N: Thoracodorsal N
A: Thoracodorsal A
**Prime mover for ext & add shoulder

6

Subscapularis

O: Subscapular fossa
I: Lesser tubercle of ant humerus
Ax: Flex, add and int rotate shoulder
N: Upper and lower subscapular N
A: Subscapular A
**Prime mover for internally rotating shoulder

7

Supraspinatus

O: Supraspinous fossa of scapula
I: SUp greater tubercle of humerus
Ax: ABd and ext rotates shoulder
N: Suprascapular N
A: Suprascapular A

8

Infraspinatus

O: Infraspinous fossa of scapula
I: post greater tubercle of humerus
Ax: Ext, add and externally rotate shoulder
N: Supscapular N
A: Suprascapular A

9

Teres Minor

O: Axillary border of scapula
I: Post greater trochanter of humerus
Ax: Ext, add and externally rotate shoulder
N: Axillary N
A: Circumflex scapular A

10

Teres Major

O: Inf angle of scapula
I: Medial lip of bicipital sulcus
Ax: Ext, add and internally rotate scapula
N: Lower subscapular N
A: Circumflex scapular A

11

Deltoid (Deltoideus)

O: Scapular spine, acromion and lat clavicle
I: Deltoid tuberosity of humerus
Ax:
- Ant head: Flex, ABd and internally rotate shoulder
- Sup head: ABd shoulder
- Post head: Ext, ABd and externally rotates shoulder
N: Axillary N
A: Ant and post humeral circumflex Aa
**Prime mover for shoulder flex, ext and ABd

12

Serratus Anterior

O: Anterolateral ribs 1-8 [Serr8tus goes to 8]
I: Ant vertebral border of scapula
Ax: Protracts, depresses and upwardly rotates scapula; Expands ribcage
N: Long thoracic N
A: Long Thoracic A

13

Pectoralis Major

O:
- Sternal Head : sternum and costal cartt 1-6
- Clavicular head: prox half of clavicle
I: Lat lip of bicipital sulcus of humerus
Ax: Expand ribcage; add and internally rotates shoulder; clavicular head flexes shoulder
N: Med and lat pectoral N
A: Thoracoacromial A

14

Pectoralis Minor

O: Ribs 3-5
I: Coracoid process of scapula
Ax: Expands ribcage; depress, protract and downwardly rotate scapula
N: Med pectoral N
A: Thoracoacromial A

15

Subclavius

O: Junction of first rib and costal cartilage
I: Inf central clavicle
Ax: Depress and protract clavicle
N: Subclavian N
A: Thoracoacromial A
[1 CC to ICC]

16

Biceps Brachii Short Head

O: Coracoid process of scapula
I: Radial tuberosity and bicipital aponeurosis of antebrachium
Ax: Flex elbow; Supinates antebrachium
N: Musculocutaneous N
A: Branches of brachial and axillary Aa
**Prime mover for flexing elbow

17

Bicpes Brachii Long Head

O: Supraglenoid tubercle of scapula
I: Radial tuberosity and bicipital aponeurosis of antebrachium
Ax: Flex shoulder & elbow; supinate antebrachium
N: Musculocutaneous N
A: Branches of axillary and brachial Aa

18

Coracobrachialis

O: Coracoid process
I: Med, central diaphysis of humerus
Ax: Add and flex shoulder
N: Musculocutaneus N
A: Branches of axillary and brachial A

19

Brachialis

O: Ant humerus
I: Ulnar tuberosity & coronoid process
Ax: Flex Elbow
N: Musculocutaneus N
A: Branched of brachial and axillary Aa

20

Triceps Brachii (Long, Medial and Lateral head)

O:
- Medial Head: Post humerus, inf to radial sulcus
- Long Head: Infraglenoid tubercle of scapula
- Lateral Head: Post humerus, sup to radial sulcus
I: Ulnar olecranon
Ax: Ext elbow; Long head also ext and add shoulder
N: Radial N
A: Deep Brachial A

21

Anconeus

O: Lat epicondyle of humerus
I: Lat olecranon & post prox ulnar shaft
Ax: Ext elbow
N: Radial N
A: Deep Radial A