The Upper Limb

Overview

The upper limb is highly specialised for movement, dexterity and sensory feedback. This section explores the anatomy of the shoulder, arm, forearm and hand, highlighting the structures that allow precise control and functional versatility. It provides a clear framework for understanding musculoskeletal organisation and the neurovascular connections that enable fine motor activity.

Key Structures

Articles in this section cover the bones of the pectoral girdle, arm and hand, along with their associated joints and muscles. The vascular supply, lymphatic drainage and peripheral nerves are described in detail, alongside the fascial compartments and functional groupings that underpin limb movement. Each topic combines clear diagrams and concise explanations to help learners build an integrated understanding of regional anatomy.

Clinical Relevance and Learning Focus

Understanding the anatomy of the upper limb is essential for interpreting trauma, nerve injury and musculoskeletal pathology. The content links anatomical structure with surface landmarks, clinical testing and surgical approaches, making it useful for medical students, physiotherapists, surgeons and educators seeking a practical learning resource.

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Anatomical Areas

  • The Triangular Space
  • The Quadrangular Space
  • +8 more

Bones

  • The Clavicle
  • The Scapula
  • +4 more

Muscles

  • The Intrinsic Muscles of the Shoulder
  • The Extrinsic Muscles of the Shoulder
  • +6 more

Nerves

  • Cutaneous Innervation
  • The Median Nerve
  • +5 more

Joints

  • The Proximal Interphalangeal Joint
  • The Metacarpophalangeal Joint
  • +6 more

Blood Vessels & Lymphatics

  • Lymphatic Drainage
  • Venous Drainage
  • +1 more

Other

  • Fascia and Ligaments of the Hand
  • The Extensor Expansion of the Hand
  • +2 more

Popular

Lateral view of the neck illustrating the innervation of the stylopharyngeus muscle by the glossopharyngeal nerve (CN IX).
The Cranial Nerves

The Glossopharyngeal Nerve (CN IX)

by Olivia Leafe

Superior view of the intrinsic muscles of the larynx, highlighting their anatomical arrangement.
Encyclopaedia

Posterior Cricoarytenoid

by Roxanne Salkeld

Lateral view of the neck highlighting the two heads of the sternocleidomastoid muscle innervated by the accessory nerve (CN XI).
Encyclopaedia

Sternocleidomastoid

by Dr Oliver Jones