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
|
WhaT IS THE AXILLA?
|
THE gateway to the upper limb
|
|
|
What does the axilla consist of?
|
formed by the calivle, scapula, the upper thoracic wall, the humerus, and related muscles
|
|
|
Where is the axillary inlet's apex pointing?
|
laterally
|
|
|
What major blood vessel supplies the auuper limb?
|
the subclavian artery
|
|
|
What happens to the subclavian artery as it enters the axilla?
|
it becomes the axillary artery
|
|
|
What is the axillary wall composed of?
|
pectoralis major, subclavis, and pectorales minor, and the clavipectoral fascia
|
|
|
where are the pectoralis major attachments?
|
attach 1- sternum, clavicle, and upper ribS
attach 2- anterior proximal humeral shaft |
|
|
Where are the pectorali minor attachments?
|
attach 1- anterior surfaces and upper margins of rib 3 to 5
attach 2- inserts to coracoid processes |
|
|
What are the muscles of the pectoralis group?
|
pectoralis major and minor
|
|
|
what are the muscles of the brachial group?
|
-coracobrachialis
-biceps brachii -brachialis |
|
|
What are the attachments of the coraccobrachilis?
|
attach 1-originates from apex of corracoid process
attach 2- medial proximal humeral shaft |
|
|
What are the attachmens of the biceps brachii (shorthead)?
|
attach 1- originates from apex of coracoid process
attach 2- radial tuberosity |
|
|
what are the attachments of the biceps brachii (longhead)?
|
attach 1- originates as a tendon from the supragenoid tubercle-transverse humeral ligament
attach 2- radial tuberosity |
|
|
what are the actions of the coraccobrachilis?
|
flexes arm and adducts armq
|
|
|
what are the actions of the briceps brachii?
|
flexor of forearm, supination
|
|
|
what are teh actions of the pectorales group?
|
flexion adduction, and medial rotation of arm
(minor- pulls tip of shoulder down, protracts scapula |
|
|
What are the muscles that move the scapula?
|
-serratus anterior
-trapezius -levator scapulae -rhomboids (mjaor/minor) |
|
|
what are the attachments of the trapezzius?
|
attach 1- nuchal ligament, cervial & thoracis spinous process
attach 2- lateral clavicle, acromion & spine of scapula |
|
|
what are the actions of the trapezius?
|
powerful elevator and rotates the scapula
|
|
|
what nerve innervates the trapezius?
|
accesory nerve[XI]
|
|
|
What are the levator scapulae attachments?
|
attach 1- transverse process of atlas, axis
attach 2- superior angle of scapula |
|
|
What is the action of the levator scapula?
|
elevates the scapula
|
|
|
what is the levator scapulae innervated by?
|
dorsal scapular nerves
|
|
|
What are the attachments of the rhomboids?
|
attach 1- medially top the medial border of the scapula
attach 2- lower cervical and uper thoracic spinous processes |
|
|
what never supplied the rhomboids?
|
the dosrsal scapular nerve- braches from brachial plexu
|
|
|
what are the actions of the rhomboids?
|
elevates and retracts the scapula
|
