Anatomy of Retinacula and Flexor Retinaculum
10 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the function of the retinacula?

  • To facilitate blood flow to the hands
  • To hold the long tendons in position (correct)
  • To convert the concave anterior surface of the hand into an osteofascial tunnel
  • To provide structural support to the wrist

    • What is the flexor retinaculum attached to medially?

  • Tubercle of scaphoid and trapezium
  • Ulnar nerve
  • Pisiform bone and hook of the hamate (correct)
  • Distal end of the radius

    • What is the extensor retinaculum attached to laterally?

  • Pisiform bone and hook of the hamate
  • Tubercle of scaphoid and trapezium
  • Distal end of the radius (correct)
  • Ulnar nerve

    • What is the function of the carpal tunnel?

    <p>To convert the concave anterior surface of the hand into a tunnel</p> Signup and view all the answers

    What is tendinitis?

    <p>Inflammation of a tendon</p> Signup and view all the answers

    What is thrombosis?

    <p>Formation of a blood clot inside a blood vessel</p> Signup and view all the answers

    What is lymphangitis?

    <p>Inflammation of the lymphatic channels</p> Signup and view all the answers

    What is bursitis?

    <p>Inflammation of one or more bursae</p> Signup and view all the answers

    What is tennis elbow?

    <p>Acute or chronic inflammation of the tendons that join the forearm and humerus</p> Signup and view all the answers

    What is a fracture?

    <p>A break in the continuity of bone</p> Signup and view all the answers

    Study Notes

    Retinacula

    • Retinacula are strong bands of deep fascia that hold long tendons in position.

    Flexor Retinaculum

    • A thickening of deep fascia that holds the long flexor tendons in position at the wrist.
    • Stretches across the front of the wrist, converting the concave anterior surface of the hand into an osteofascial tunnel, the carpal tunnel.
    • Attached medially to the pisiform bone and hook of the hamate, and laterally to the tubercle of scaphoid and trapezium.
    • Upper border corresponds to the distal transverse skin crease and is continuous with the deep fascia of the forearm.
    • Lower border is attached to the palmar.

    Extensor Retinaculum

    • A thickening of deep fascia that holds the long extensor tendons in position.
    • Stretches across the back of the wrist.
    • Converts the grooves on the posterior surface of the distal ends of the radius and ulna into six separate tunnels.
    • Each tunnel is lined with a synovial sheath, which extends above and below the retinaculum on tendons.
    • Attached medially to the pisiform bone and hook of the hamate, and laterally to the distal end of the radius.

    Structures on the Anterior Aspect of the Wrist

    • Medial to lateral:
      • Flexor carpi ulnaris tendon, ending on pisiform bone.
      • Ulnar nerve lies lateral to pisiform bone.
      • Ulnar artery lies lateral to ulnar nerve.
      • Palmar cutaneous branch of ulnar nerve.
      • Palmaris longus tendon.
      • Palmar cutaneous branch of median nerve.
    • Lateral to medial:
      • Flexor digitorum superficialis tendons.
      • Tendons of the flexor digitorum profundus.
      • Median nerve.
      • Flexor pollicis longus tendon.
      • Flexor carpi radialis tendon.

    Winged Scapula

    • Caused by paralysis of serratus anterior.

    Thrombosis

    • Formation of a blood clot (thrombus) inside a blood vessel, obstructing the flow of blood through the circulatory system.

    Tendinitis

    • Inflammation of a tendon.

    Venipuncture and Blood Transfusion

    • The process of obtaining intravenous access for intravenous therapy or blood sampling of venous blood.

    Shock

    • Circulatory shock, a life-threatening medical condition characterized by low blood perfusion to tissues, resulting in cellular injury and inadequate tissue function.

    Lymphangitis

    • Inflammation or infection of the lymphatic channels, occurring as a result of infection at a site distal to the channel.

    Lymphadenitis

    • Infection of the lymph nodes (also called lymph glands), a common complication of certain bacterial infections.

    Bursitis

    • Inflammation of one or more bursae (small sacs) of synovial fluid in the body.

    Tennis Elbow

    • Lateral epicondylitis, a condition in which the outer part of the elbow becomes sore and tender, characterized by acute or chronic inflammation of the tendons that join the forearm bones to the lateral epicondyle.

    Golfer's Elbow

    • Medial epicondylitis, tendinosis of the medial epicondyle of the elbow, similar to tennis elbow.

    Fracture

    • A break in the continuity of bone.

    Dislocations

    • Abnormal separation in a joint.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Learn about the retinacula, strong bands of deep fascia that hold long tendons in position, and the flexor retinaculum, a thickening of deep fascia that forms the carpal tunnel.

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser