Muscles

Question 1

both located on forearm located on

anterior medial side l

ocated on posterior lateral side

Answer 1

flexors and extensors

Question 2

all on the radial nerve 4 extensors create extension primarily at the wrist and fingers

Answer 2

Extensors

Question 3

lateral/posterior to the brachioradialis

known as the Wad of Three

A: to the extend and abduct the wrist; assist to flex the elbow

O: Longus: distal one-third of the lateral supracondylar ridge of humerus; Brevis: common extensor tendon from the lateral epicondyle of humerus

I: Longus: Base of second metacarpal Brevis: Base of the third metacarpal

N: Longus: Radial Brevis: Radial

Answer 3

BRACHIORADIALIS ,Extensor Carpi Radialis Longus and Brevis

Question 4

lies beside the ulnar shaft,

A: Extend and Abduct the wrist

O: Common extensor tendon from the lateral epicondyle of humerus

I: Base of fifth metacarpal

N: radial c6,7,8

Answer 4

Extensor Carpi Ulnaris

Question 5

located between all of theses muscles and

has four long, superficial tendons stretching along the dorsal surface of the hand and fingers

A: Extends the second-fifth finder and assist to extend the wrist

O: Common Extensor tendon from the lateral epicondyle of the humerus

I: Bases of middle and distal phalanges of second-fifth fingers

N: Radial

Answer 5

Extensor digitorium

Question 6

located deep to the extensor digitorium and extensor carpi ulnaris, helps extend the index finger and adduct the second finger radial nerve

Answer 6

Extensor Indicis

Question 7

considered flexors of wrist and fingers

located on forearm’s anterior/medial surface b/t brachioraadialis and ulnar shaft,

thicker than extensors involves 3 layers,

superficial, middle and deep layers

Answer 7

Flexor Carpi Radialis

Palmaris Longus

Flexor Carpi Ulnaris

Flexor Digitorum Superficialis

Flexor Digitorum Profundus

Question 8

part of the superficial layer of flexors medial to the pronator teres and brachioradialis

Answer 8

flexor carpi radialis

Question 9

part of the superficial layer of flexors lies close to the ulnar shaft and has a distinct tendon attaching to the pisiform

Answer 9

Flexor Carpi Ulnaris

Question 10

part of superficial layer sometimes absent, runs between flexor carpi radialis and flexor carpi ulnaris attaches to the aponeurosis absent in 11% of the population

Answer 10

Palmaris Longus

Question 11

part of the middle and deep layers

Answer 11

flexor digitorum superficialis and flexor digitorium profundus passes through the carpal tunnel and attach at the phalanges

Question 12

anterior surface of the forearm, tucked b/t brachioradialis and forearm flexors; antagonist to the biceps branchi and supinator A: Pronate the forearm(radioulnar joint) flex elbow O: common flexor tendon from medial epicondyle of the humerus and coronid ulna I: middle lateral of radius N: Medial

Answer 12

pronator Teres

Question 13

small pronator

A: Pronates the arm

O: medial/anterior of distal ulna

I:Lateral anterior surface distal radius

N: Medial

Answer 13

pronator Quadratus

Question 14

located on the lateral side of the elbow; short deep in forearm extensors & superficial to the head of the radius antagonist to pronator teres A: Supinate the forearm O: lateral epicondyle of humerus, radial collateral ligment, annular ligament and supinator crest of the ulna I: Anterior, lateral surface of proximal one-third of radial shaft N: Radial

Answer 14

Supinator

Question 15

known as a holster

Answer 15

Flexor Retinaculum

Question 16

Name the four short muscles muscles of the thumb and where located

Answer 16

Abductor Pollicis Brevis

Flexor Pollicis Brevis

Opponens Pollicis

Adductor Pollicis

located at the thenar eminence

Question 17

Name the four long muscles and where they originate at?

Answer 17

Abductor Pollicis Longus

Flexor Pollicis Longus

Extensor Pollicis Longus

Extensor Pollicis Brevis

originate at shafts of the radius and ulna

Question 18

pinkie pad

Answer 18

Hypothenar Eminence

Question 19

scalenes, scapularis, Pec minor

Answer 19

muscles for impinged brachial