Term
| Anterior axioscapular muscle functions |
|
Definition
| attach the scapula to the thorax, work together to produce smooth scapular motion, provides a stable base of support for additional range of motion of the humerus |
|
|
Term
| Pectoralis major general function and attachment pattern |
|
Definition
| attaches humerus to clavicle and axial skeleton via three heads (clavicular, sternal, costal). Fibers converge and twist in the anterior axillary fold, pass behind the deltoid, cross the intertubercular groove to the crest of the greater tubercle |
|
|
Term
| Pectoralis major action and innervation |
|
Definition
| Adducts, flexes (clavicular head), extends a flexed arm (sternocostal head), and internally rotates the humerus lateral (C5-C7) and medial pectoral (C8-T1) nerves |
|
|
Term
| Pectoralis minor attachments, action, and innervation |
|
Definition
| P: ribs 3-5 D: corocoid process A: depression, protraction, and medial rotation of the scapula I: medial pectoral nerves (C8-T1) |
|
|
Term
| Subclavius attachments, action, and innervation |
|
Definition
P: rib 1
D: clavicle
A: strengthens the SC joint, some medial rotation
I: subclavius nerve off of the superior trunk of the brachial plexus (C5-C6) |
|
|
Term
| Serratus anterior attachments, action, and innervation |
|
Definition
| 8-9 digits: upper four insert into the anterior medial border of the scapula, lower 4-5 insert into the inferior angle of the scapula A: at the SC joint for protraction and lateral rotation of the scapula, hold medial border of the scapula against the thoracic wall I: long thoracic nerve off the roots of C5-C7 |
|
|
Term
| Vascular supply to the UE |
|
Definition
| Brachiocephalic trunk-> subclavian artery-> Axillary artery-> Brachial artery-> Radial and ulnar arteries |
|
|
Term
| What divides the axillary artery into three sections? |
|
Definition
|
|
Term
| Sections and branches of the Axillary artery |
|
Definition
1)Superior thoracic
2)Thoracoacromial
-deltoid
-pectoral
-clavicular
-acromial
Lateral thoracic
3)Subscapular
Anterior circumflex humeral
Posterior circumflex humeral |
|
|
Term
| Brachial plexus components and order |
|
Definition
Roots
Trunks
Divisions
Cords
Branches |
|
|
Term
| Nerves originating from the posterior cord of brachial plexus |
|
Definition
Axillary nerve (C5-C6)
Radial nerve (C5-T1) |
|
|
Term
| Axillary nerve roots and function |
|
Definition
| (C5-C6) shoulder abduction and shoulder sensation |
|
|
Term
| Radial nerve roots and function |
|
Definition
| (C5-T1) extension(elbow, wrist, and fingers) and sensation to the back of the hand |
|
|
Term
| Nerves originating from the lateral and medial cords of the brachial plexus |
|
Definition
Musculocutaneous nerve (lateral cord) (C5-C7)
Median nerve (lateral and medial cords) (C5-T1)
Ulnar nerve (medial cord) (C8-T1) |
|
|
Term
| Musculocutaneous nerve roots and function |
|
Definition
| (C5-C7) nerve of elbow flexion and chief supinator |
|
|
Term
| Median nerve roots and function |
|
Definition
| (C5-T1) nerve of wrist and digit flexion, chief pronator, nerve of hand sensation |
|
|
Term
| Ulnar nerve roots and function |
|
Definition
| (C8-T1) nerve of hand intrinsics |
|
|
