TTK Unit 2.1

Levator Scapula

Deltoid (Posterior, Anterior, & Middle)

Posterior: border of scapula

Anterior: acromion process

Middle: lateral part of clavicle

Pectoralis Major

Pectoralis Minor: deep to minor

Subclavius: runs inferior to clavicle

Serratus Anterior: can’t really see, connects 1st rib to 8th, assists in respiration

Platysma, most superficial

Coracobrachialis, deep to bicep brachii, sits on humerus, connects to chorocoid process, upper 1/3 of humerus

Biceps Brachii (Long head)

lateral

Biceps Brachii (Short Head)

medial

Brachialis, deep to bicep, lower 2/3 of humerus, assists in flexion of forearm

Triceps Brachii (Long head) connects to scapula

Tricep Brachii (Lateral head)

Tricep brachii (medial head) deep to all three

brachioradialis: extends into forearm, drinking muscle, connects humerus to radius, divides flexors and extensors

acromioclavicular: connects acromion process to clavicle

coracoacromial: connects coracoid process to acromion process

Coracoclavicular: Connects Coracoid process to clavicle

Shorter: trapezoid

Longer: Conoid

sternoclavicular: connects sternum to clavicle

Transverse Scapular Ligament: Covers supra scapular notch, very small

Medial (Vertebral) Border,

Lateral (Axillary) Border,

Superior Border,

Superior Angle,

Inferior Angle,

Lateral Angle,

Glenoid Cavity,

Labrum, cartilage that cushions humerus, lays on top of glenoid cavity

Coracoid Process,

Acromion Process,

Spine of Scapula,

Suprascapular Notch,

Infraspinous Fossa,

Supraspinous Fossa,

Subscapular Fossa,

Clavicle,

Sternal End, flatter end, articulates with sternum

Acromial End,

Head,more medial, articulates with glenoid cavity

Anatomical Neck, goes around head of humerus

Surgical Neck, goes around head of humerus, below greater and lesser tubercules, where most fractures on humerus happen

Greater Tubercle, lateral, close to head of humerus, larger of the nubs

Lesser Tubercle, more anterior, close to head of humerus, smaller of the nubs

interubercular groove: Separates greater and lesser tubercles, where tendon of the long head of biceps brachii rests

Deltoid Tuberosity: Rough surface on lateral side of humerus, where deltoid inserts into humerus, begins just below surgical neck

Quandrangular space

Borders: Teres Major and Minor, Long head of Tricep, and humerus

Triangular interval

Borders: Teres major and Minor, long head of Tricep, humerus

Triangular space

Borders: Teres Minor and Major, Long head of Tricep, humerus

Deltopectoral triangle

***only one that a vein(cephalic) passes thru***

Radial Groove: Shallow depression that runs diagonally down posterior surface. Radial nerve and profunda brachii artery lie in this groove

green

Medial Epicondyle: Medial, Same side of head, bump that projects medially

Yellow

Lateral Epicondyle: Most lateral, bump that projects laterally

Green

Trochlea: Expands coronoid fossa, looks like bow tie

Red

Capitulum: Sits inferior to radial fossa

Coronoid Fossa: Sits superior to trochlea, where coronoid process of the ulna articulates w/ humerus

Olecranon Fossa: Posterior Side of humerus where olecranon fossa articulates w/ humerus

Radial Fossa: Superior yo Capitulum where radius articulates w/ humerus