Arm, Elbow, Forearms Flashcards
Remember these parts of the humerus
Region of lumphatic drainage from the lateral part of the breast
Axilla
Types of major muscles of the anterior compartment of the arm. Bonus points for specific names
Flexors of the forearm
- Coracobrachialis
- Biceps brachii
- Brachialis
This nerve innervates the anterior compartment muscles?
Musculocutaneous nerve
Review this diagram of the bones of the elbow
What is the only muscle that crosses both the glenohumeral and ebow joint?
Biceps
What is the most powerful supinator of the forearm when elbow joint is fixed?
Biceps
Three major functions of the Biceps Brachii
Hint: 2 of them are flexes, 1 is supination
- Flexes the elbow
- Supinates the forearm
- Flexes the shoulder
Actions of the Coracobrachilis
Also the origin of it (Hint: look at the name)
Flexes the shoulder
Adducts the shoulder
Origin: Coracoid process of scapula
Function and origin of the Brachialis Muscle
Flexes the elbow
Origin: Distal half of anterior surface of humerus
What major muscles make up the posterior compartment?
Extensors of the forearm (triceps)
What nerve innervates the posterior compartment muscles?
Radial Nerve
Functions of the three heads of the triceps brachii
All heads: Extend elbow
Long head specifically: Extends shoulder and adducts shoulder
Remember this diagram of arteries of the arm (mainly the major ones, axillary, brachial, radial, ulnar)
What two veins does the subclavian vein branch into?
Cephalic and Axillary
What two veins arise from branching form the axillary vein?
Basilic and Brachial
Four major nerves of the arm
Musculocutaneous
Median
Radial
Ulnar
Know these general locations of the nerves of the arm
Parts of the cubital fossa from lateral to medial
Biceps brachii tendon
Brachial artery
Median nerve
Have general knowledge of these bones of the elbow