Human Brain Model with Arteries, PVC, 8 Parts

Quick Answer: The human brain model with arteries is an eight-part PVC model of the brain that shows the main cerebral arteries, including the circle of Willis at its base. It is used to teach which vessels supply each brain region and why blocking one produces a particular pattern of stroke.

Blood Supply of the Brain

Blood reaches the brain through two pairs of arteries. The internal carotid arteries enter at the front of the skull base, and the vertebral arteries rise through the neck vertebrae and join to form the basilar artery on the front of the brainstem. At the base of the brain these systems link in a ring called the circle of Willis, made up of the anterior, middle and posterior cerebral arteries with connecting communicating arteries. Turning the model over lets students trace this ring from beneath.

Each cerebral artery serves a territory. The anterior cerebral artery supplies the inner surface of the frontal and parietal lobes, including the area controlling the leg; the middle cerebral artery supplies much of the outer surface, including the face and arm areas and, usually on the left, the language areas; and the posterior cerebral artery supplies the occipital lobe and vision. Tracing a vessel to its territory explains why a stroke in the middle cerebral artery can weaken the face and arm and affect speech.

The title states eight parts and PVC construction. How the eight parts divide the brain, for example into hemispheres, lobes, cerebellum and brainstem, and whether the arteries are moulded on or removable, is not given. PVC can be wiped clean and handled frequently.

Specifications

Applications

• Teaching the circle of Willis and the arterial supply of the brain in medical and nursing anatomy
• Linking stroke symptoms to the territory of each cerebral artery
• Taking the brain apart to relate surface arteries to deeper structures
• Physiotherapy and speech therapy courses that deal with stroke rehabilitation

Care & Handling

• Take the brain model with arteries apart on a clear bench and lay out the eight parts in order so they go back the same way.
• Hold parts by the brain tissue, not the moulded vessels, which are thin and can tear or snap.
• Clean the PVC with mild soapy water on a soft cloth and let it dry before reassembly.

Why Choose LabEquip

Medical, nursing and allied health colleges buy this model when their neuroanatomy teaching must cover blood supply and stroke, not only the parts of the brain. LabEquip lists it among its anatomy models, with the simpler four-part brain on base for introductory classes; enquiries go through the contact page.

Frequently Asked Questions

What is the circle of Willis?

It is a ring of arteries at the base of the brain formed by branches of the internal carotid and basilar arteries, joined by the anterior and posterior communicating arteries. It can let blood reach an area by another route if one vessel narrows, though the ring is incomplete in many people.

Which artery is most often involved in stroke?

The middle cerebral artery. It carries a large share of the carotid blood flow and supplies wide areas of the outer brain, so its blockage commonly causes weakness of the face and arm on the opposite side and, on the dominant side, language problems.

Why does a stroke on one side affect the opposite side of the body?

Most motor and sensory pathways cross the midline in the brainstem or spinal cord. The left hemisphere therefore controls and feels the right side of the body, and damage to it shows up on the right.

What is the difference between an ischaemic and a haemorrhagic stroke?

An ischaemic stroke is caused by a blocked artery, usually from a clot, and is the more common type. A haemorrhagic stroke is caused by an artery bursting and bleeding into or around the brain.

Why does the brain need such a large blood supply?

The brain is a small part of body weight but uses a large share of the body’s oxygen and glucose at rest, and it stores almost none. A few minutes without blood flow can damage brain cells.

How does the basilar artery form?

The two vertebral arteries run up through openings in the neck vertebrae, enter the skull through the foramen magnum and join on the front of the brainstem to form the single basilar artery, which ends by dividing into the two posterior cerebral arteries.

Last Updated: September 2026