Anatomy Middy Review

Who Knows?

100

Name O&I for Rhomboid Major and Minor.

TOSS UP. 

Rh.Maj 

O: Spinous processes of T2-T5    I: Medial border of scapula, inferior to base of spine

Rh. Min

O: Spinous processes of C7-T1, lower ligamentum nuchae    I: medial border of scapula, at the base of the spin.

300

Action and Innervation of Triceps Brachii (be specific).

Action: extension of the forearm (all heads) at elbow joint, extension of humerus (long head) adduction of humerus (long head) at the shoulder joint

Innervation: Radial N. 

Pick Me

100

Name this muscle and actions (be specific).

Deltoids

Anterior: flexion, medial rotation of humerus at shoulder joint

Lateral: abduction of humerus after first 15° at shoulder joint

Posterior: extension, lateral rotation of humerus at shoulder joint

200

Name this muscle and its action. 

Latissimus Dorsi

A: Adduction, medial rotation, extension of humerus at shoulder joint

I Dare You

100

Origin, and blood supply of Biceps Brachii.

Short Head:  coracoid process of scapula

Long Head:  supraglenoid tubercle of scapula

Blood Supply: Brachial Artery

300

Name this muscle and its innervation. 

TOSS UP!

Levator scapulae

I: Dorsal scapular N.

TOSS UP: What is the blood supply?

Doooooo It

400

What are the two muscles that aid in respiration? Name both and their specific actions.

Serratus Posterior Inferior

A: Draws lower ribs down and back

Serratus Posterior Superior

A: Draws upper ribs up and back 

500

Name all 4 rotator cuff muscles and each individual actions.

Supraspinatus

Action: abduction of humerus first 0-15 degrees

Infraspinatus - Action: external (lateral) rotation of humerus

Subscapularis - Action: internal (medial) rotation of humerus

Teres Minor - Action: external (lateral) rotation of humerus

Sure....Why not...

400

What is this muscle? Name the action and innervation. 

Pectoralis Major

Action: flexion of humerus (clavicular portion only), extension of humerus (sternocostal portion only, from flexed position), adduction of humerus, medial rotation of humerus at shoulder joint (both)

Innervation: Medial Pectoral nerve (sternocostal portion) and Lateral Pectoral nerve (clavicular portion)

500

Name the following bony landmarks. And name which side this belongs to. 

TOSS UP

A B C D E

TOSS UP! Where do all four of the rotator cuff muscles originate on this structure?