Elbow, Forearm, Wrist and Hand - PowerPoint PPT Presentation

Loading...

PPT – Elbow, Forearm, Wrist and Hand PowerPoint presentation | free to download - id: 3fe0db-NjE1Z



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Elbow, Forearm, Wrist and Hand

Description:

Elbow, Forearm, Wrist and Hand Elbow Bones: Humerus: only bone of the arm Landmarks: medial and lateral epicondyles, olecranon fossa, capitulum (articulation with the ... – PowerPoint PPT presentation

Number of Views:181
Avg rating:3.0/5.0
Slides: 18
Provided by: ll63
Learn more at: http://www.fmtusd.org
Category:
Tags: elbow | forearm | hand | wrist

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Elbow, Forearm, Wrist and Hand


1
Elbow, Forearm, Wrist and Hand
2
Elbow
  • Bones
  • Humerus only bone of the arm
  • Landmarks medial and lateral epicondyles,
    olecranon fossa, capitulum (articulation with the
    radius), trochlea (articulation with the ulna)

3
  • Ulna bone on the pinkie (medial) side of forearm
  • Landmarks olecranon process, radial notch
  • Radius bone on the thumb (lateral) side of
    forearm
  • Landmarks radial head

4
  • Ligaments
  • Ulnar collateral prevents valgus force (think of
    it as MCL of knee)
  • Radial collateral prevents varus force (think of
    it as LCL of knee)
  • Annular ligament circular ligament encompassing
    the radius, allows for rotation of radius while
    holding it securely to the ulna

5
  • Bursae
  • Bicipital bursa anterior aspect of elbow,
    cushions the bicep
  • Olecranon bursa posterior aspect of elbow,
    cushions between olecranon process and the skin

6
  • Muscles
  • Elbow flexion
  • Brachialis, brachioradialis, biceps brachii
  • Elbow extension
  • Triceps brachii

7
  • Nerves
  • Ulnar nerve passes posterior to the medial
    epicondyle hitting your funny bone

8
  • Joint Mechanics
  • Elbow hinge joint between ulna and humerus
  • Allows for flexion and extension
  • Joint between ulna and radius (radio-ulnar)
  • Allows for pronation and supination of the forearm

9
Forearm
  • Bones Radius and ulna held together by
    interosseus membrane
  • Landmarks radial and ulnar styloid processes

10
  • Radioulnar joint
  • Proximal allows for pronation and supination
  • Distal connects the radius and ulna at the wrist

11
Muscles
  • Anterior (flexors)
  • Flexor digitorum superficialis
  • Flexor digitorum profundus
  • Flexor carpi ulnaris
  • Flexor carpe radialis
  • Flexor pollicus longus
  • Pronator teres
  • flexor tendons originate on the medial
    epicondyle of the humerus

12
Muscles cont.
  • Posterior (extensors)
  • Extensor digitorum communis
  • Extensor carpi radialis longus
  • Extensor carpi radialis brevis
  • Extensor carpi ulnaris
  • Extensor pollicus longus
  • extensors origiante on the lateral epicondyle
    of the humerus

13
Wrist and Hand
  • Basic Anatomy
  • Bones
  • Distal radius and ulna (styloid process)
  • Carpals 8 bones of wrist
  • Scapoid, lunate, triquetrum, pisiform, trapezium,
    trapezoid, capitate, hamate
  • Metacarpals 5 bones of hand
  • Phalanges 14 bones of fingers

14
  • Carpal tunnel tunnel formed by carpal bones and
    closed off by the transverse carpal ligament.
    Nerves, blood vessels and muscles pass through
    this tunnel.
  • Wrist joint joint between distal radius and ulna
    and the carpal bones
  • Movements flexion, extension, radial and ulnar
    deviation

15
Joints of Fingers and Hand
  • Carpometacarpal joint (CM)
  • Metacarpo-phalangeal (MP)
  • Interphalangeal (IP)
  • Proximal Interphalangeal (PIP)
  • Distal Interphalangeal (DIP)

16
Ligaments of Wrist
  • Ulnar collateral from styloid process of wrist
    to triquetrum
  • Radial collateral from styloid process of radius
    to scaphoid
  • Transverse carpal ligament closes off carpal
    tunnel

17
Muscles and Tendons
  • The extrinsic muslces and tendons of the hand and
    fingers originate in the forearm. See the
    muscles listed for the forearm
  • Muscles of the thumb
  • Extensor pollicus longus
  • Extensor pollicus brevis
  • Abductor pollicus longus
  • Flexor pollicus brevis
About PowerShow.com