Functional Anatomy of Elbow Joint (PTAU 4113)
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Questions and Answers

What is the primary function of the radius bone?

  • Running from the elbow to the thumb-side of the forearm (correct)
  • Running from the elbow to the little finger side
  • Located on the medial aspect of the forearm
  • Extending from the shoulder to the elbow

The ulna bone is shorter than the radius bone.

False (B)

Name the bone that is located on the lateral aspect of the forearm.

Radius

The ulna bone runs from the elbow to the side of the ______.

<p>little finger</p> Signup and view all the answers

Match the bones with their location:

<p>Humerus = Extending from the shoulder to the elbow Radius = Located on the thumb side of the forearm Ulna = Located on the little finger side of the forearm</p> Signup and view all the answers

What type of joint is the elbow classified as?

<p>Hinge joint (A)</p> Signup and view all the answers

The elbow supports both physiological and accessory movements.

<p>True (A)</p> Signup and view all the answers

What are the primary factors that check elbow motions?

<p>Ligaments and joint capsules</p> Signup and view all the answers

The elbow joint is primarily responsible for ________ and ________ movements.

<p>flexion, extension</p> Signup and view all the answers

Match the following structures with their functions:

<p>Ulnar collateral ligament = Provides medial stability Radial collateral ligament = Provides lateral stability Joint capsule = Encloses the elbow joint Biceps brachii = Facilitates elbow flexion</p> Signup and view all the answers

What is a potential mechanism of injury at the elbow complex?

<p>Improper weight lifting techniques (B)</p> Signup and view all the answers

The surrounding tissues of the elbow do not play a role in joint stability.

<p>False (B)</p> Signup and view all the answers

Explain the significance of understanding the elbow and forearm structures for physiotherapy.

<p>It helps in diagnosing and treating injuries effectively.</p> Signup and view all the answers

Flashcards

Humerus

The bone in the upper arm that connects the shoulder to the elbow.

Radius

The bone on the thumb side of the forearm that runs from the elbow to the wrist.

Ulna

The bone on the little finger side of the forearm that runs from the elbow to the wrist.

Elbow Joint

The joint where the humerus, radius, and ulna meet.

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Ossification

The process of bone formation.

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Elbow Joint Type

The elbow joint is a hinge joint allowing flexion and extension. It comprises the humerus, ulna, and radius bones, with the humeroulnar and humeroradial articulations contributing to these movements.

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Elbow Joint Movements

The elbow joint's main movements are flexion and extension. These are controlled by muscles like biceps brachii, triceps brachii, and brachialis.

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Elbow Joint Accessory Movements

Accessory movements, such as rotation and gliding, occur alongside primary movements. These are typically small and help with joint stability and coordination.

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Elbow Joint Stability

The elbow joint derives its stability from various factors, including the bony structures (humerus, ulna, radius), the strong ligaments (collateral ligaments, annular ligament), and the surrounding muscles.

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Elbow Joint Injuries

Common injuries to the elbow joint include sprains, strains, dislocations, and fractures. These can be due to trauma, overuse, or underlying conditions.

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Humeroulnar Joint

The humeroulnar joint is formed between the trochlea of the humerus and the trochlear notch of the ulna. This articulation significantly contributes to the elbow's flexion and extension.

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Humeroradial Joint

The humeroradial joint involves the capitulum of the humerus and the head of the radius. This joint permits a small amount of rotation in addition to flexion and extension.

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Proximal Radio-Ulna Joint

The proximal radio-ulnar joint, located at the elbow, allows for pronation and supination of the forearm. This movement is crucial for various hand and wrist functions.

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Study Notes

Functional Anatomy of Upper Extremity (PTAU 4113)

  • Course: Diploma in Physiotherapy
  • Unit: 4
  • Topic: Elbow & Radio-ulnar Joint
  • Course Identifier: PTAU 4113
  • School: School of Nursing and Allied Health
  • Institution: UOW (University of Wollongong) Malaysia
  • Prepared by: Ms. Vaneeyshaa Chandran
  • Date: 13/11/2024

Elbow Joint Bones

  • Humerus: Bone from shoulder to elbow
  • Radius: Bone from elbow to thumb side of forearm
  • Ulna: Bone from elbow to little finger side of forearm (longer than radius)

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Functional Anatomy of Upper Extremity (PTAU 4113) PDF

Description

This quiz focuses on the functional anatomy of the elbow and radio-ulnar joint, specifically designed for the Diploma in Physiotherapy course (PTAU 4113). Explore the key bones involved including the humerus, radius, and ulna, and enhance your understanding of their roles in upper extremity movement.

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