BIOL 240 Quiz for 2.3 and 2.4 only

deltoid innervation

axillary nerve

supraspinatus origin

supraspinous fossa of the scapula

Supraspinitus insertion

greater tubercle of humerus

Suprasinatus function

abducts the arm

supraspinatus innervation

suprascapular nerve

Infraspinatis Origin

infraspinous fossa of scapula

infraspinatus insertion

greater tubercle of humerus

infraspinatus function

laterally rotates the humerus

infraspinatus innervation

suprascapular nerve

teres minor origin

lateral border of dorsal scapula

teres minor insertion

greater tubercle of humerus

teres minor function

Laterally rotates the humerus when arm is adducted

teres minor innervation

axillary nerve

subscapularis origin

subscapular fossa of scapula

subscapularis insertion

lesser tubercle of humerus

subscapularis function

medially rotates humerus

subscapularis innervation

upper and lower subscapular nerves

latissimus dorsi insertion (3)

iliac crest, thoracic and lumbar vertebrae

latissimus dorsi insertion

intertubercular sulcus of humerus

latissimus dorsi function

extends, adducts, and medially rotates humerus

latissimus dorsi innervation

thoracodorsal nerve

teres major origin

lateral border of scapula

teres major insertion

intertubercular sulcus of humerus

teres major function

extends, adducts, and medially rotates arm

teres major innervation

lower subscapular nerve

What muscles does the axillary nerve innervate?

deltoid and teres minor

what muscles does the suprascapular nerve innervate?

supraspinatus and infraspinatus

what does the lower subscapular nerve innervate?

subscapularis (1 of the 2 that innervate it), teres major

triceps brachii parts and locations

long head (medial side), lateral head (lateral side), medial head (underneath the other two heads)

triceps brachii long head origin

infraglenoid tubercle of scapula

triceps brachii lateral head origin

lateral shaft of humerus

triceps brachii medial head origin

posterior shaft of humerus

insertion point of all the triceps brachii muscles

olecranon of the ulna

function of the triceps brachii long head

extends the arm at the shoulder and extends the forearm at the elbow

function of BOTH the triceps brachii lateral head and medial head

extends the forearm at the elbow

anconeous origin

Posterior surface of lateral epicondyle of humerus

anconeous insertion

olecranon process of ulna

anconeus function

extends forearm at elbow

triceps brachii innervation

radial nerve

pectoralis major origin (3)

clavicle, sternum, 7th rib

pectoralis major insertion

greater tubercle of humerus

pectoralis major function

flexes, medially rotates, and adducts arm

pectoralis major innervation

both the medial and lateral pectoral nerves

pectoralis minor origin

anterior surface of ribs 3-5

pectoralis minor insertion

coracoid process of scapula

pectoralis minor function

protracts scapula

serratus anterior origin

upper eight ribs

pectoralis minor innervation

medial pectoral nerve

serratus anterior insertion

medial border of scapula

serratus anterior function

protracts and rotates the scapula

serratus anterior innervation

long thoracic nerve (SALT)

Coracobrachilis Origin

coracoid process of scapula

coracobrachialis insertion

Medial, midshaft of humerus

coracobrachialis function

flexes arm at shoulder

Coracobrachialis innervation

musculocutaneous nerve

biceps brachii parts and location

biceps brachii long head (lateral end) and biceps brachii long end (lateral end)

biceps brachii long head origin

supraglenoid tubercle of scapula

biceps brachii short head origin

coracoid process of scapula

biceps brachii long and short head (BOTH) insertion

radial l tuberosity of radius

biceps brachii long head and short head (BOTH) function

1. flexes arm at shoulder
2. flexes forearm at elbow
3. supinates forearm

biceps brachii innervation

musculocutaneous nerve

Brachilialis origin

anterior humeral shaft

brachialis insertion

coronoid process of ulna

brachialis function

flexes forearm at elbow

brachialis innervation

musculocutaneous nerve

flexor carpi radialis insertion

base of 2nd and 3rd metacarpals

flexor carpi radialis and ulnaris (BOTH) origin

Medial epicondyle of humerus

flexor carpi radialis and ulnaris (BOTH) function (2)

Flexes the forearm at the elbow, flexes and abducts the wrist

flexor carpi radialis insertion (3)

pisiform, hamate, base of 5th metacarpal

flexor carpi radialis innervation

median nerve

flexor carpi ulnaris innervation

ulnar nerve

palmaris longus origin

medial epicondyle of humerus

palmaris longus insertion

palmar aponeurosis

palmaris longus function (2)

flexes elbow and flexes wrist

palmaris longus innervation

median nerve

flexor digitorum superficialis origin (2)

medial epicondyle of humerus, anterior radius and ulna

flexor digitorum superficialis insertion

middle phalanges 2-5

flexor digitorum superficialis and profundus (BOTH) function

flexes wrists and digits

flexor digitorum superficialis innervation

median nerve

flexor digitorum profundus innervation (2)

median and ulnar nerve

pronator teres origin

medial epicondyle of humerus

pronator teres insertion

lateral midshaft of radius

pronator teres function (2)

Flexes the forearm at the elbow, pronates the forearm

pronator teres innervation

median nerve

pronator quadratus origin

distal ulna

pronator quadratus insertion

shaft of radius

pronator quadratus function

pronates the forearm

pronator quadratus innervation

median nerve

Carpal tunnel pressure is sometimes relieved by surgically excising part or all of which structure?

flexor retinaculum

what holds together flexor muscles of antebrachium

flexor retinaculum

brachioradialis origin

lateral supracondylar ridge of humerus

brachioradialis insertion

styloid process of radius

brachioradialis function

flexes forearm at the elbow

brachioradialis innervation

radial nerve

extensor carpi radialis longus origin

supracondylar ridge of humerus

extensor carpi radialis longus insertion

Base of 2nd metacarpal

extensor carpi GROUP function

Extends the elbow, extends and abducts the wrist

Extensor carpi radialis longus innervation

radial nerve

Extensor carpi radialis brevis origin

Lateral epicondyle of humerus

Extensor carpi radialis brevis insertion

Base of 3rd metacarpal