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Muscles controlling the fingers-Resisted extension of each finger separately

Positioning and procedure.

The subject presents his hand palm downwards. The examiner stabilizes the wrist with one hand. With the other, he applies resistance to the distal phalanx of each finger respectively.

Common mistakes.

None.

Anatomical structures tested:

Muscle function:

• Extension of the index finger:

– Extensor indicis proprius – Tendon to the index […]

Resisted extension of the wrist

Positioning.

The subject stands with the arm hanging, the elbow extended and the wrist in neutral position (between pronation and supination,and between flexion and extension). The examiner stands level with the subject’s elbow. The contralateral arm lifts and carries the elbow and keeps it extended. The hand stabilizes the forearm. The other hand is placed […]

Elbow Anatomy and Examination

Basics Description Bones Ulnohumeral joint: The trochlea of the humerus articulates with the trochlear notch of the proximal ulna. The olecranon process of the ulna lies posterior to the joint. Allows for elbow flexion and extension Radiohumeral joint: The capitulum of the humerus articulates with the radial head. Allows for forearm supination and pronation […]

A Patient’s Guide to Wrist Anatomy

Introduction

The anatomy of the wrist joint is extremely complex, probably the most complex of all the joints in the body. The wrist is actually a collection of many bones and joints. These bones and joints let us use our hands in lots of different ways. The wrist must be extremely mobile to give our […]

A Patient’s Guide to Hand Anatomy

Introduction

Few structures of the human anatomy are as unique as the hand. The hand needs to be mobile in order to position the fingers and thumb. Adequate strength forms the basis for normal hand function. The hand also must be coordinated to perform fine motor tasks with precision. The structures that form and move […]

A Patient’s Guide to Radial Tunnel Syndrome

Introduction

Radial tunnel syndrome happens when the radial nerve is squeezed where it passes through a tunnel near the elbow. The symptoms of radial tunnel syndrome are very similar to the symptoms of tennis elbow (lateral epicondylitis). There are very few helpful tests for radial tunnel syndrome, which can make it hard to diagnose.

This […]

A Patient’s Guide to Shoulder Anatomy

Introduction

The shoulder is an elegant piece of machinery. It has the greatest range of motion of any joint in the body. However, this large range of motion can lead to joint problems.

Understanding how the different layers of the shoulder are built and connected can help you understand how the shoulder works, how it […]