Gross Anatomy 2

Week 1

How many Joints articulates with the scapula?

4

Which muscle origin is located at the coracoid process of the scapula?

Short head bicep brachii

What muscle origin is located at the supraglenoid tubercle of the scapula?

Long head bicep brachii

What main function is to flex the elbow, and supinates the forearm?

Bicep brachii (both)

What is the muscle insertion point is at the radial tuberosity and bicipital aponeurosis?

Bicep Brachii (both)

What nerve does the biceps brachii supply?

Musculocutaneous (C5-C7)

What extent elbow, extends and adducts shoulder?

Tricep Brachii (long head)

Which tricep origin is located in the Infraglenoid tubercle od scapula?

Long head

What triceps origin is posterior humerus (superior to radial groove?

Lateral Head

What triceps origin is located posterior humerus and inferior to the radial groove?

Medial Head

What is the landmark for the olecranon of the ulna?

Insertion of the triceps

What is the nerve that is supplies the triceps?

Radial Nerve (C6-C8)

What controls adducts, medially rotates humerus, flexes arm (clavicular head)?

Pectoralis Major

What controls stabilize the scapula by drawing it inferiorly and anteriorly?

Pectoralis Minor

What is the orgin of the pectoralis major?

all of the option

What is the origin of the pectoralis minor?

3rd to 5th ribs near costal cartilages

What insertion of the lateral lip of the intertubercular sulcus of humerus?

Pectoralis Major

What insertion is the coracoid process of the scapula?

Pectoralis Minor

When nerve supply the pectoralis major?

Lateral and medial pectoral nerve (C5-T1)

What nerve supplies the pectoralis minor?

Medial Pectoral nerve (C8-T1)

What is the function of the latissimus dorsi?

Extends, adducts and medially rotates humerus

What is the origin of the latissimus dorsi?

all of the option

What is the insertion point of the latissimus dorsi?

Floor of intertubercular sulcus of humerus

What nerve supplies the latissimus dorsi?

Thoracodorsal nerve (C6-C8)

What is the function of the teres minor?

Laterally rotates arm; stabilizes shoulder joint

What is the function of the teres major?

Adducts and medially rotates arm

What is the functions of the deltoids?

All of the option

What is consider the lateral portion of the scapula?

Origin of the teres minor

What is considered the posterior surface of the inferior angle of scapula?

Origin of teres major

What is considered the lateral third of clavicle, acromion, and spine of scapula?

Origin of the deltoid

What is the insertion point of the teres minor?

Inferior facet of the greater tubercle of humerus

What is the insertion of the teres major?

Medial lip of intertubercular sulcus of humerus

What is the insertion point of the deltoid?

Deltoid tuberosity of humerus

What nerve supplies the teres minor and deltoid?

Axillary nerve (C5-C6)

What nerve supplies the teres major?

Lower subscapular nerve (C5-C6)

What is the function of the serratus anterior?

Protracts and stabilizes scapula; upward rotation of scapula

What is the function of the subscapularis?

Medially rotates humerus; stabilizes shoulder joint

What is the function of the supraspinatus?

Adducts arm (intial 15*) stabilize shoulder

What is the function of the levator scapulae?

Elevates scapula; rotates scapula to tilt glenoid cavity inferiorly

What is the function of the rhomboid minor?

Retracts and rotates scapula to depress glenoid cavity

What is the function of the rhomboid major?

Retracts and rotates scapula to depress glenoid cavity

What is the function of the infraspinatus?

Laterally rotates arm; stabilizes shoulder joint

What is the origin of the serratus anterior?

External surfaces of ribs 1-8

What is the origin of the subscapularis?

Subscapular fossa of scapula

What is the origin of the supraspinatus?

Supraspinous fossa of scapula

What is the origin of the levator scapulae?

TP of C1-C4

What is the origin of the rhomboid minor?

Nuchal ligament SP of C7-T1

What is the origin of the rhomboid major?

SP T2-T5

What is the origin of the infraspinatus?

Infraspinous fossa of scapula

What is the insertion point of the serratus anterior?

Anterior surface of medial border of scapula

What is the insertion point of the subscapularis?

Lesser tubercle of humerus

What is the insertion point of the supraspinatus?

Superior facet of greater tubercle of humerus

What is the insertion point of the levator scapulae?

Superior part of medial border of scapula

What is the insertion point of the rhomboid minor?

Medial border of scapula at spine level

What is the insertion point of the rhomboid major?

Medial border of scapula below spine

What is the insertion point of the infraspinatus?

Middle facet of greater tubercle of humerus

What nerve supplies the serratus anterior?

Long thoracic nerve (C5-C7)

What nerve supplies the subscapularis?

Upper and lower subscapular nerve (C5-C7)

What nerve supplies the supraspinatus?

Suprascapular nerve (C5-C6)

What nerve supplies the levator scapulae?

Dorsal scapular nerve (C5); C3-C4

What nerve supplies both of the rhomboid?

Dorsal scapular nerve (C4-C5)

What nerve supplies the infraspinatus?

Suprascapular nerve (C5-C6)