CorpusHuman Anatomy

Interactive diagrams

Labelled, animated anatomy diagrams

Hover any part to identify it, click for its study page, press play for a guided walkthrough — or test yourself with Quiz me.

Skeletal

Skeletal

Long Bone — Structure

Coronal section of a femur with magnified compact bone (osteons)

20 parts 9-step tour
Skeletal

Skull — Lateral View

Left lateral view (norma lateralis), Frankfort plane horizontal

27 parts 7-step tour
Skeletal

Synovial Joint — Structure

Schematic longitudinal section

10 parts 7-step tour

Muscular

Muscular

Muscles — Posterior View

Superficial layer (body’s left) and deep layer (body’s right)

64 parts 8-step tour
Muscular

Sarcomere & Sliding Filaments

From whole muscle to cross-bridge — excitation–contraction coupling (schematic, not to scale)

25 parts 12-step tour

Nervous

Nervous

Brain — Lateral View

Left cerebral hemisphere, cerebellum and brainstem

21 parts 9-step tour
Nervous

Brain — Midsagittal Section

Medial surface of the right half, anterior to the left

33 parts 10-step tour
Nervous

Chemical Synapse

Axospinous synapse, schematic (not to scale)

18 parts 7-step tour
Nervous

Neuron & Action Potential

Myelinated lower motor neuron, schematic (not to scale)

23 parts 7-step tour

Cardiovascular

Cardiovascular

Blood Vessel Wall

Artery, vein and capillary compared — layers, lumen and flow

15 parts 5-step tour
Cardiovascular

Cardiac Conduction System & ECG

Impulse spread through the heart, synchronised with a lead-II ECG

23 parts 8-step tour
Cardiovascular

Heart — Internal Anatomy

Coronal section, anterior view, with blood flow

23 parts 12-step tour

Respiratory

Respiratory

Alveolus & Gas Exchange

Alveolar sac with capillary network and a magnified respiratory membrane

20 parts 8-step tour
Respiratory

Respiratory Tract

Head & neck in median sagittal section, thorax anterior view

41 parts 15-step tour

Digestive

Digestive

Intestinal Villus and Absorption

Villi, crypts and the absorptive enterocyte: where sugars, amino acids and fats leave the gut

26 parts 8-step tour
Digestive

Liver Lobule

Classic hexagonal lobule, portal triads, sinusoids and acinar zones

16 parts 8-step tour
Digestive

Tooth: Molar in Longitudinal Section

Mandibular first molar in its socket, with periodontium and neurovascular supply

16 parts 8-step tour
Digestive

Wall of the Gastrointestinal Tract

Transverse section of the small intestine, a magnified wedge of its wall, and peristalsis

27 parts 10-step tour

Urinary

Urinary

Kidney — Coronal Section

Right kidney, anterior view (hilum faces medially, to the right)

20 parts 10-step tour
Urinary

Nephron — Juxtamedullary

Tubule, renal microcirculation and the medullary osmotic gradient

23 parts 8-step tour

Reproductive

Reproductive

Female Reproductive Organs

Coronal section, anterior view — the journey of the oocyte

25 parts 10-step tour
Reproductive

Male Reproductive Organs

Midsagittal section — the path of sperm

23 parts 8-step tour

Endocrine

Endocrine

Hypothalamic–Pituitary Axis

Sagittal schematic — portal system, neurohypophysis and target organs

41 parts 8-step tour

Lymphatic & Immune

Lymphatic & Immune

Adaptive Immune Response

From antigen capture to antibodies and cytotoxic killing

19 parts 9-step tour
Lymphatic & Immune

Lymph Node — Sectioned

Bisected node showing lymph and lymphocyte traffic

21 parts 8-step tour

Integumentary

Integumentary

Skin — Layers and Appendages

Three-dimensional block of thin hairy skin with a magnified view of the epidermis

28 parts 8-step tour

Special Senses

Special Senses

Ear — Coronal Section

Right ear, anterior view · path of sound from auricle to brainstem

26 parts 10-step tour
Special Senses

Eye — Horizontal Section

Right eyeball viewed from above · path of light and aqueous humour

22 parts 9-step tour
Special Senses

Smell and Taste — Chemoreceptors

(a) Olfactory epithelium and bulb · (b) Taste bud in a papilla

24 parts 10-step tour

Cells & Tissues

Cells & Tissues

Mitosis and Cytokinesis

From a G2 cell to two genetically identical daughter cells

6 parts 6-step tour
Cells & Tissues

Plasma Membrane — Fluid Mosaic Model

Lipid bilayer, membrane proteins and the main modes of transport

15 parts 11-step tour
Cells & Tissues

The Eukaryotic Cell

Cutaway of an animal cell — organelles, cytoskeleton and the secretory pathway

24 parts 10-step tour