Joints – Classification, Structure and Stability

Overview

Joints form the connections between bones and allow the body to move, bear weight and maintain stability. This section introduces the fundamental principles of joint anatomy, including how joints are classified, how synovial joints are structured and how stability is achieved through surrounding tissues. It provides the essential overview required for understanding joint function throughout the body.

Core Concepts

The topics in this section explore the classification of joints into fibrous, cartilaginous and synovial types, and describe the key components that make up a synovial joint. Additional content covers the factors that contribute to joint stability, including ligaments, muscle tone and joint shape, providing a clear framework for understanding how movement and support are balanced.

Clinical Relevance and Learning Focus

Knowledge of joint anatomy is vital for assessing injury, degenerative change and instability. Understanding classification and structural principles supports interpretation of imaging, recognition of common joint pathologies and informed clinical examination. This material forms a foundation for more advanced regional joint anatomy studied elsewhere on the site.

+ Read more

Classification of Joints

Structures of a Synovial Joint

Joint Stability

Popular

Illustration of the first layer of plantar muscles in the foot, showing the flexor digitorum beneath the cut plantar aponeurosis.
Encyclopaedia

Abductor Digiti Minimi (Foot)

by Sanya Trikha

Illustration of the fourth layer of the plantar muscles, featuring the unipennate plantar interossei and bipennate dorsal interossei.
Encyclopaedia

Plantar Interossei (Foot)

by Sanya Trikha

Anatomy diagram illustrating the cutaneous nerves of the foot, highlighting the distribution of the dorsal cutaneous nerves.
Nerves of the Lower Limb

The Superficial Fibular (Peroneal) Nerve

by Mini Sardar