Blood Vessels & Lymphatics of the Upper Limb

Overview

The vascular and lymphatic systems of the upper limb ensure efficient supply, drainage and immune defence. This section outlines the major arteries, veins and lymphatic channels that support upper limb function.

Key Structures

Topics include the axillary, brachial, radial and ulnar arteries, their venous counterparts, and the superficial and deep venous systems. The organisation of lymphatic drainage and associated nodes is also described.

Clinical Relevance and Learning Focus

A sound knowledge of vascular and lymphatic anatomy is vital for procedures such as venepuncture, grafting and arterial line placement. Learners can relate this anatomy to clinical conditions including embolism, compartment syndrome and lymphoedema.

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An anatomical illustration of the axillary artery divided into first, second, and third parts relative to the pectoralis minor, with the subclavian and brachial arteries and teres major also labeled.

Arterial Supply

Venous Drainage

Diagram illustrating the five groups of axillary lymphatic nodes, highlighting their drainage into the apical nodes.

Lymphatic Drainage

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Diagram illustrating the circumflex scapular artery passing through the triangular space into the posterior scapular region.
Anatomical Areas

The Triangular Space

by Dr Oliver Jones

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

Illustration of the lateral abdominal wall showing the external oblique muscle, its aponeurotic fibres, and the linea alba.
Encyclopaedia

External Oblique

by Aren Mnatzakanian