How To Relief
No Result
View All Result
  • Home
  • Health Conditions
  • Living Healthy
  • Human Anatomy
  • Medical Device
  • Hospital & Doctor
  • Home
  • Health Conditions
  • Living Healthy
  • Human Anatomy
  • Medical Device
  • Hospital & Doctor
How To Relief
No Result
View All Result

Elbow Joint: Anatomy, Movement & Muscle involvement

ADVERTISEMENT

The elbow is a synovial variety of hinge joint, formed within the distal end of the humerus and the proximal ends of the ulna and radius in the forearm. The elbow permits for the flexion and extension of the forearm, as well as rotation of the forearm and wrist. The articular surfaces of the bones are separated from each other by a layer of hyaline cartilage. Smooth movement of these joints is provided by the viscous synovial fluid, which acts as a lubricant.

ADVERTISEMENT

Articulating Surfaces of the Elbow Joint

Elbow joint comprises two separate articulations-

  • Head of the radius and the capitulum of the humerus
  • Trochlear notch of the ulna and the trochlea of the humerus
Elbow joint Anatomy

Joint Capsule and Bursae of the Elbow Joint

The elbow joint has a capsule enclosing the joint. This joint capsule strengthening the elbow joint. The joint capsule is thickened medially and laterally to form collateral ligaments, which stabilize extending the and flexing motion of the elbow joint.

ADVERTISEMENT

A bursa is a membranous sac loaded with synovial fluid. It functions to cushion the moving parts of a joint. There are many bursae in the elbow, but a few have clinical significance-

elbow-joint-capsule

Intratendinous – positioned within the tendon of the triceps brachii.
Subtendinous – within the olecranon and the tendon of the triceps brachii muscle, diminishing friction between the two structures during extension and flexion of the arm.
Subcutaneous – within the olecranon and the overlying connective tissue.

Ligaments of the Elbow Joint

The joint capsule of the elbow is strengthened by ligaments medially and laterally.

Guides

Flexor Digitorum Brevis: Origin, Insertion, Action & Nerve Supply

Middle Scalene: Origin, Insertion, Action & Nerve Supply

Supraspinatus Muscle: Origin, Insertion, Nerve Supply & Action

Veins: Types, Venous System & Clinical Significance

ADVERTISEMENT

The ulnar collateral ligament originates from the medial epicondyle and attaches to the coronoid process and olecranon of the ulna.

The radial collateral ligament is located on the lateral side of the joint, extending from the lateral epicondyle, and blending with the annular ligament of the radius.

Neurovasculature of the Elbow Joint

The blood supply to the elbow joint is through the cubital anastomosis, which involves recurrent and collateral branches from the brachial and deep brachial arteries.

Nerve supply is rendered by the musculocutaneous, median, and radial nerves anteriorly, and the ulnar nerve posteriorly.

Movements of the Elbow Joint

Extension: Triceps brachii and anconeus
Flexion: Brachialis, brachioradialis, biceps brachii

Latest Topic

  • Free or Low-Cost Tablets for SNAP/EBT Users
  • Vortex Government Phone Replacement Guide
  • Activate Your Torch Wireless SIM Card: Android And iPhone
  • Galaxy Z Flip Phone, Alternative Free Deals After Closed Government Program
  • Free Government iPhone 14 & Pro Max 2025
  • Free Government SIM Card Unlimited Data 2025
  • How To Get Airtalk Wireless Free Government Phone & Tablet
  • Comlink Bundle: Saving on Internet, Cable, and Phone Services
  • 10 Best Free eSIM Trials: 7 Days To 90 Days Duration
  • Budget-Friendly Cheapest Mobile Plans : Best Options For 2025
ADVERTISEMENT
  • About How To Relief
  • Privacy Policy
  • Disclaimer

© 2024 How To Relief

No Result
View All Result
  • Home
  • Health Conditions
  • Living Healthy
  • Human Anatomy
  • Medical Device
  • Hospital & Doctor

© 2024 How To Relief