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DEPARTMENT OF ANATOMY. UPPER LIMB. Cubital fossa. WINDSOR UNIVERSITY SCHOOL OF MEDICINE St.Kitts. Dr. SREEKANTH THOTA. CUBITAL FOSSA . The cubital fossa is an important area of transition between the arm and the forearm.

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Presentation Transcript
cubital fossa
CUBITAL FOSSA
  • The cubitalfossa is an important area of transition between the arm and the forearm.
  • It is located anterior to the elbow joint and is a triangular depression formed between two forearm muscles:
  • 1. Brachioradialis
  • 2. Pronatorteres
boundries
BOUNDRIES
  • Laterall(2)

Brachioradialis muscle

  • -Medially(3)

Pronatorteres muscle

  • -Base(1)

Triangle is formed by an imaginary line drawn b/w the 2 epicondyle

  • -Floor:

Supinator m laterally

Brachialis m medially

  • -Roof:

Skin, fascia,& reinforced by the bicipitalaponeurosis

slide4
Roof
  • On the roof lie three named veins (cephalic, basilic and median cubital) and two cutaneous nerves (the lateral cutaneous of the forearm and the medial cutaneous of the forearm.
slide5

Roof of the fossa :

Containing the Median cubital vein.

This is a communication between

Cephalic

And

Basillic veins

Median Cubital Vein

contents
CONTENTS:
  • From medial to lateral side
  • 1-Median Nerve
  • 2-Bifurcation of brachial artery into radial and ulnar artery
  • 3-Tendon of biceps muscle
  • 4-Radial nerve and its deep branch
slide8

A

N

T

RN

[superficial br.]

bicipital aponeurosis
Bicipitalaponeurosis
  • The median cubital vein lies directly on the deep fascia, crossing the bicipitalaponeurosis, which separates it from the underlying brachial artery and median nerve and provides some protection to the latter.
ulnar nerve injury
Ulnar nerve injury
  • The ulnar nerve does not pass through the cubitalfossa. Instead, it passes posterior to the medial epicondyle.
  • Posterior to the medial epicondyle of the humerus the ulnar nerve is bound in a fibro-osseous tunnel (the cubital tunnel) by a retinaculum..
  • Older patients may develop degenerative changes within this tunnel, which compresses the ulnar nerve when flexed.
cubital tunnel syndrome
Cubital tunnel syndrome
  • The symptoms are very similar to the pain from hitting your funny bone.