Human Anatomy Weekly Quiz 5

Pectoral Girdle and Upper Appendicular Muscles

What is the origin and insertion of the most anterior muscle of the rotator cuff muscles?

O: subscapular fossa of the scapula, I: lesser tubercle of the humerus

What is the most inferior, for most of its length, of the posterior rotator cuff muscles?

teres minor

What is the origin and insertion of the most proximal/deep/medial muscle in the anterior compartment of the brachium?

O: coracoid process of the scapula, I: middle medial shaft of the humerus

What is the origin and insertion of the most superior/posterior of the rotator cuff muscles?

O: supraspinous fossa of the scapula, I: greater tubercle of the humerus

What muscle that originates on the ribs abducts and stabilizes the scapula?

serratus anterior

What is the origin and insertion of the most inferior of the posterior rotator cuff muscles?

O: lateral border of the scapula, I: greater tubercle of the humerus

What is the most proximal/deep muscle of the anterior compartment of the antebrachium?

pronator teres

What is the most medial/superficial muscle of the anterior compartment of the antebrachium?

flexor carpi ulnaris

What muscle returns the antebrachium to the anatomical position from a position where the palm is facing posterior?

supinator

What is the most lateral muscle in the posterior compartment of the antebrachium?

extensor carpi radialis longus

What is the most superficial/superior/posterior muscle on the right side of the muscles that move the pectoral girdle?

trapezius

What is the common insertion of the three posterior rotator cuff muscles?

greater tubercle of the humerus

What is the most inferior muscle that originates on the lateral (axillary) border of the scapula?

teres major

What muscle that moves the pectoral girdle is totally anterior?

pectoralis minor

What muscle is the antagonist to coracobrachialis?

deltoid

What is the most inferior muscle that inserts on the vertebral (medial) border of the scapula?

rhomboid major

What muscle inserts on the most distal/lateral structure of the antebrachium?

brachioradialis

What deep/lateral muscle crosses the joint where the clavicle and the scapula articulate?

deltoid

What is the most superficial muscle in the midline of the anterior antebrachium?

palmaris longus

In naming a muscle, what is the term that indicates that the muscle fibers are arranged in a circular fashion?

orbicularis

What is superficial to all but one of the muscles in the anterior compartment of the antebrachium in the area of the carpi?

flexor retinaculum

What whole muscle in the posterior compartment of the brachium only extends the antebrachium at the elbow joint?

anconeus

What is the deepest/most inferior of the muscles that move the pectoral girdle?

pectoralis minor

What is the most superficial muscle of the lower to middle back?

latissimus dorsi