Superficial and Deep Forearm Muscles (ANTERIOR) Flashcards Preview

Anatomy Exam 3 > Superficial and Deep Forearm Muscles (ANTERIOR) > Flashcards

Flashcards in Superficial and Deep Forearm Muscles (ANTERIOR) Deck (16)
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1

Biceps Brachii and Brachialis muscles

Location: Cross the anterior elbow joint
Function: Flexion of the forearm

2

Brachioradialis Muscle

Location: Descending on the lateral side of the forearm, inserts upon the styloid process of the radius
Function: Assisting the biceps brachii and brachialis in the flexion of the forearm

3

5 Superficial Muscles Invovled in flexion or pronation

Alll attach to the medial epicondyle of the humerus, pronator teres, flexor carpi radialis, palmaris longus, flexor carpi ulnaris, flexor digitorum superficialis

4

Pronator Teres

Function: rotates the palm backward

5

Flexor Carpi Radialis

Function: flexes the wrist on the lateral side

6

Palmaris Longus

Location: includes a long tendon which expands to form a dense connective tissue sheet (palmar aponeurosis) in the hand
Function: tense the palm and assists in flexion of the wrist.

7

Flexor Carpi Ulnaris

Function: flexes the wrist on the medial side

8

Fexlor Digitorum Superficialis

Location: sends tendons to the middle phalanx of the medial four digits (Index, long, ring and little fingers, but not the thumb)
Function: acts in flexion of the proximal and middle phalanges, and assists in the flexion of the wrist.

9

MP Joints

moved in waving motions

10

PIP joints

May also be independently moved with each digit flexing separately.

11

Three deep muscles involved in flexion or pronation

Flexor pollicis longus, flexor digitorum profundus, pronator quadratus

12

Flexor Pollicis Longus

Location: To the thumb distal phalanx
Function:

13

Flexor Digitorum Profundus

Location: Distal phalanx of the medial four digits (Index, long, ring and little fingers)
Function: Allows (in some people) independent flexion of only the fingertips in these digits

14

Pronator Quadratus

Location: Found near the wrist
Function: Flat square muscle, contracts with the pronator teres, in producing rotation of the hand, with the palm moving in a posterior (dorsal) direction

15

Thenar Eminence

Two sets of intrinsic muscles that form the prominent bulge on the thumb side

16

Hypothenar Eminence

Medial Side of the palm