Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
26 Cards in this Set
- Front
- Back
|
Innervates the trapezius
|
accessory nerve XI
|
|
|
Innervates Deltoid
|
axillary nerve [C5,C6]
|
|
|
Innervates Levator scapulae
|
C3, C4
Dorsal scapular nerve [C4, C5] |
|
|
Rhomboids' Innervations
|
Dorsal scapular nerve [C4, C5]
|
|
|
Function of trapezius
|
-elevates scapula to abduct humerus above horizontal
-middle fibers retract scapula -lower fibers depress scapula |
|
|
Function of deltoids
|
Major abductor of arm (after initial 15 degrees by supraspinatus)
-assist in flexion and extension of arm |
|
|
Levator scapulae functions
|
elevate scapula
|
|
|
Rhomboids
|
elevates and retracts the scapula
|
|
|
Attachments of the Trapezius
|
origin: Superial nuchal line, occipital protuberance, ligamentum nuchae, CVII to TXII spinous process
insertion: spine of scapula, acromion, lateral 1/3 of clavicle |
|
|
Attachments of deltoids
|
origin: spine of scapula, acromion, lateral 1/3 of clavicle
insertion: deltoid tuberosity |
|
|
Attachments of levator scapulae
|
origin: CI to CIV transverse processes
insertion: Superior angle to the root of spine of the scapula (upper medial border) |
|
|
Rhomboid minor's attachments
|
origin: lower ligamentum nuchae, CVII and TI spinous processes
insertion: medial border (@ root of spine of scapula) |
|
|
Rhomboid major's attachments
|
origin: TII-TV spinous processes
insertion: from root of the spine of scapula to the inferior angle (@ the medial border of scapula) |
|
|
Innervates Supraspinatus and Infraspinatus
|
Suprascapular nerve [C5,C6]
|
|
|
Innervates Teres minor
|
Axillary nerve [C5,C6]
|
|
|
Innervates Teres major
|
Inferior subscapular nerve [C5-C7]
|
|
|
Long head of Triceps Brachii innervation
|
Radial Nerve [C6-C8]
|
|
|
Supraspinatus function
|
initial 15 degree of abduction
|
|
|
Infraspinatous and Teres minor function
|
lateral rotation of arm
|
|
|
Function of Teres major
|
Medial rotation and extension of the arm
|
|
|
Long head of triceps brachii
|
extension of the forearm, aids adduction and extension of the arm
|
|
|
Supraspinatus attachments
|
origin: medial 2/3 of supraspinous fossa of scapula
|
|
|
Infraspinatus attachments
|
origin: medial 2/3 of infraspinous fossa of scapula
insertion: posterior of greater tubercle of humerus |
|
|
Teres minor attachments
|
origin: superior to inferior angle on posterior of scapula
insertion: posterior of greater tubercle of humerus |
|
|
Teres major attachements
|
origin: posterior of inferior angle of the scapula
insertion: intertubercular sulcus (anterior surface) |
|
|
Long head of triceps brachii attachments
|
origin: infraglenoid tubercle on scapula
insertion: olecranon process of ulna |
