Lessons

Learn anatomy like an artist

Guided discovery · Cardiovascular

Inside the Heart

A muscular organ that pumps blood throughout the body, delivering oxygen and nutrients to every cell.

Function: Circulates oxygenated blood
Blood supply: Left and right coronary arteries
Location: Behind the sternum, slightly left
Explore tissue: Cardiac muscle tissue

Medical importance. Its electrical rhythm coordinates every heartbeat.

Did you know. It beats roughly 2.5 billion times in an average lifetime, and starts before you are born.

Common conditions

Coronary artery disease
Arrhythmia
Heart valve disorders
Heart failure
Cardiomyopathy
Myocarditis
Atrial fibrillation
Congenital heart defects

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Guided discovery · Nervous System

Inside the Brain

The body’s command center, integrating sensation, memory, emotion, and precise movement.

Function: Processes and coordinates signals
Blood supply: Internal carotid and vertebral arteries
Location: Protected within the skull
Explore tissue: Cerebral cortex

Medical importance. Billions of neurons communicate through electrical and chemical signals.

Did you know. It has no pain receptors of its own — a headache is felt in the tissues around it.

Common conditions

Migraine
Stroke
Neurodegenerative disease
Epilepsy
Traumatic brain injury
Meningitis
Multiple sclerosis
Brain aneurysm

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Guided discovery · Respiratory System

Inside the Lungs

Paired organs that draw in air and trade oxygen for carbon dioxide across a vast, delicate surface.

Function: Exchanges oxygen for carbon dioxide
Blood supply: Pulmonary and bronchial arteries
Location: Either side of the heart, within the ribcage
Explore tissue: Alveolar tissue

Medical importance. Alveoli fold a tennis-court-sized exchange surface into the chest.

Did you know. The right lung carries three lobes and the left only two, leaving a notch for the heart.

Common conditions

Asthma
COPD
Pneumonia
Pulmonary embolism
Pulmonary fibrosis
Bronchitis
Cystic fibrosis
Lung cancer

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Guided discovery · Digestive System

Inside the Liver

A remarkable metabolic organ that filters blood, processes nutrients, and produces bile.

Function: Metabolism, detoxification & bile
Blood supply: Hepatic artery and portal vein
Location: Upper right abdomen
Explore tissue: Hepatic lobules

Medical importance. It can regenerate a substantial portion of lost tissue.

Did you know. It is the only human organ that can regrow to full size from a fraction of itself.

Common conditions

Fatty liver disease
Hepatitis
Cirrhosis
Gallstones
Haemochromatosis
Liver cancer
Autoimmune hepatitis
Portal hypertension

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Guided discovery · Urinary System

Inside the Kidneys

Paired filtration organs that balance fluids, electrolytes, blood pressure, and waste removal.

Function: Filters blood and forms urine
Blood supply: Renal arteries
Location: Either side of the spine below the ribs
Explore tissue: Renal cortex

Medical importance. Nephrons fine-tune the chemistry of the bloodstream.

Did you know. They reclaim almost everything they filter — only about 1–2 L leaves the body as urine.

Common conditions

Kidney stones
Chronic kidney disease
Urinary infection
Glomerulonephritis
Polycystic kidney disease
Renal hypertension
Acute kidney injury
Nephrotic syndrome

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Guided discovery · Sensory System

Inside the Eye

A precision sensory organ that converts focused light into neural signals interpreted as vision.

Function: Captures and focuses light
Blood supply: Ophthalmic artery
Location: Within the bony orbit
Explore tissue: Retinal layers

Medical importance. The retina is an extension of the central nervous system.

Did you know. The cornea carries no blood vessels at all; it takes oxygen directly from the air.

Common conditions

Myopia
Cataract
Glaucoma
Macular degeneration
Retinal detachment
Dry eye disease
Astigmatism
Conjunctivitis

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Guided discovery · Digestive System

Inside the Intestine

A folded digestive passage where nutrients are absorbed and the microbiome supports whole-body health.

Function: Digestion and nutrient absorption
Blood supply: Superior and inferior mesenteric arteries
Location: Central and lower abdomen
Explore tissue: Intestinal villi

Medical importance. Its surface is amplified by folds, villi, and microvilli.

Did you know. Its lining renews itself every few days — the fastest turnover of any tissue in the body.

Common conditions

Irritable bowel syndrome
Inflammatory bowel disease
Celiac disease
Diverticulitis
Intestinal obstruction
Colorectal polyps
Crohn's disease
Lactose intolerance

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Guided discovery · Endocrine System

Inside the Pancreas

A dual-purpose gland that releases digestive enzymes into the gut and the hormones that steady blood sugar.

Function: Digestive enzymes and insulin
Blood supply: Splenic and pancreaticoduodenal arteries
Location: Behind the stomach, across the upper abdomen
Explore tissue: Pancreatic acini

Medical importance. Islets of Langerhans release insulin and glucagon to balance blood sugar.

Did you know. Barely 2% of it makes hormones; the rest is given over to digestive enzymes.

Common conditions

Pancreatitis
Type 1 diabetes
Pancreatic cancer
Type 2 diabetes
Exocrine insufficiency
Pancreatic cysts
Gallstone pancreatitis
Insulinoma

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Guided discovery · Integumentary System

Inside the Skin

The body’s largest organ — a living barrier that senses touch, holds in water, and regulates temperature.

Function: Protects, senses, and cools
Blood supply: Dermal vascular plexus
Location: Covering the entire body
Explore tissue: Epidermal layers

Medical importance. Three layers — epidermis, dermis, and hypodermis — each with a distinct job.

Did you know. A single square centimetre can hold hundreds of sweat glands and metres of blood vessels.

Common conditions

Eczema
Psoriasis
Melanoma
Acne vulgaris
Cellulitis
Contact dermatitis
Rosacea
Vitiligo

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