Chapter 11- Muscular system (Upper division)

Which of the following retracts the scapula?

Rhomboid minor

Which of the following abducts the arm?

deltoid

what muscles cause medial rotation of the shoulder?

subscapularis and pectoralis major

what muscles make up the anatomical snuffbox?

extensor pollicis brevis extensor pollicis longus forms a triangular depression; was used back then to sniff tobacco

what movement occurs of someone slapping themselves? (rotation at elbow)

medial/lateral rotation @ shoulder

what muscles causes abduction of the arm at shoulder?

deltoid supraspinatus

Eva Marie is a boxer! She goes and trains at her gym to properly prepare for her competitions against other boxers. Her last match consisted of her throwing five punches in a row and resulted in a knock out. Which of the following muscles were used to perform a punch if we are discussing movement at the level of the SHOULDER joint?

pectoralis minor

what muscle causes protraction of pectoral girdle?

pectoralis minor

adduction always involves the _____ and abduction always involves the ____.

ulnaris; radialis

how do you alleviate the pain from carpal tunnel?

with steroids

what muscle causes flexion of arm at shoulder?

biceps brachii

what causes flexion at the elbow?

biceps brachii, brachialis, brachioradialis

what muscle causes extension at the wrist?

extensor carpi radialis extensor carpi ulnaris

Which action is performed by most of the muscles located on the anterior compartment of the forearm?

flexion

what movement occurs at the wrist?

flexion/extension

what is the movement of bicep curls? origin and insertion?

flexion/extension at elbow origin: humerus insertion: radius/ulna

Adduction at the wrist involves contraction of the:

flexor carpi ulnaris & extensor carpi ulnaris

What is carpal tunnel and what nerve does it damage?

if you have inflammation of carpal bones, it will compress median nerve causing pain, tingling, numbness

what is the bony origin and insertion?

origin: humerus or radius/ulna insertion: carpals

flexion and abduction of the arm bony origin and insertion:

origin: pectoral girdle or axial skeleton insertion: humerus

what is the origin and insertion of biceps brachii?

origin: scapula insertion: radius

punching involves what type of movement? origin and insertion?

protraction of pectoral girdle origin: ribs or vertebrae insertion: pectoral girdle