PTA110 - Wrist Joint

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

Extensor Carpi Radialis Longus

O- Lateral Supracondylar ridge of humerus I- Base of second metacarpal A- Wrist extension, radial deviation N- Radial nerve (C6, C7)

Extensor Carpi Ulnaris

O- Lateral epicondyle of humerus I- Base of fifth metacarpal A- Wrist extension, ulnar deviation N- Radial nerve (C6, C7, C8)

Extensor Carpi Radialis Brevis

O- Lateral epicondyle of humerus I- Base of third metacarpal A- Wrist extension N- Radial nerve (C6, C7)

Palmaris Longus

O- Medial epicondyle of humerus I- Palmar fascia A- Assistive in wrist flexion N- Median nerve (C6, C7)

Flexor Carpi Ulnaris

O- Medial epicondyle of humerus I- Pisiform and base of fifth metacarpal A- Wrist flexion, ulnar deviation N- Ulnar nerve (C8, T1)

Flexor Carpi Radialis

O- Medial epicondyle of the humerus I- Base of second and third metacarpals A- Wrist flexion, radial deviation N- Median nerve (C6, C7)

Palmar Facscia / Palmar Aponeurosis

● Covers the tendons of the extrinsic muscles and provides some protection to the structures in the palm. ● The palmar fascia serves as the distal attachment of the palmaris longus

Radiocarpal Joint

● Distal end of the radius and the radioulnar disk proximally and the scaphoid, lunate, and triquetrum distally. ● The articular disk located between the ulna and the proximal row of carpals are part of this joint, thusly the ulna is not considered part of this joint. ●Bi-axial - Flex/Ext & Ulnar/Radial Dev ●Condyloid joint (concave on convex)

Midcarpal Joint

● Located between the two rows of carpal bones and contribute to wrist motion. ●Their shape is irregular, and they are classified as plane joints ●Non-axial joints that allow gliding motions

Review of Wrist Prime Movers

●*Flexion* ▪ Flexor carpi radialis ▪ Flexor carpi ulnaris ●*Extension* ▪ Extensor carpi radialis longus & brevis ▪ Extensor carpi ulnaris ●*Radial deviation* ▪ Flexor carpi radialis, ▪ Extensor carpi radialis longus ●*Ulnar deviation* ▪ Flexor carpi ulnaris ▪ Extensor carpi ulnaris

Review of Wrist Muscles by Innervation

●*Radial Nerve* ▪ Extensor carpi radialis longus & brevis ▪ Extensor carpi ulnaris ●*Median Nerve* ▪ Flexor carpi radialis ▪ Palmaris longus ●*Ulnar Nerve* ▪ Flexor carpi ulnaris

Remembering the Carpal Bones

●From lateral to medial in anatomical position *So Long To Pinky/Here Comes The Thumb*

Ligaments & Joint Support

●Radial Collateral ●Ulnar Collateral ●Palmar Radiocarpal ●Dorsal Radiocarpal

TFCC

●The Triangular fibrocartilage complex (TFCC) is formed by the articular disc between the ulna triquetrium & lunate, the radioulnar ligaments and the ulnocarpal ligaments.


Kaugnay na mga set ng pag-aaral

Illionis accident and health insurance

View Set

MDX-DNA POLYMORHISM AND HUMAN IDENTIFICATION

View Set

ILLINOIS BROKER PRELICENSE Unit 1-12 REVIEW QUESTIONS

View Set

Biology Unit 8- Ecology PowerPoint

View Set