Chapter 6 Vascular System (Lecture) - Cohort 23(y) (1)

Vascular System

Consists of an arterial blood supply, a capillary network, and venous drainage.

Vascular plexus

A large network of blood vessels.

Anastomosis

A connecting channel among vessels; a way for blood vessels to communicate with each other.

Artery

A blood vessel that arises from the heart and carries blood away from it.

Capillary

The smallest blood vessels, supplying blood to a large tissue area due to their abundant presence.

Vein

A blood vessel that carries blood to the heart.

Venous sinuses

Blood-filled spaces between two layers of tissue.

Atherosclerosis

Narrowing and blockage of arteries due to plaque build-up.

Thrombus

A clot that forms on the inner blood vessel wall.

Embolus

Foreign material or thrombus traveling in the blood that can block a vessel.

Hemorrhage

Large amounts of blood escaping into surrounding tissue without clotting due to vessel injury.

Hematoma

A bruise resulting from a blood vessel injury, causing blood to escape into surrounding tissue.

Common Carotid Artery

A major artery in the neck that supplies blood to the head and neck region.

External Carotid Artery

Supplies extracranial tissues of the head and neck, including muscles of mastication, oral cavity, and facial structures.

Facial Artery

Supplies the face, including the oral, buccal, zygomatic, and nasal regions.

Maxillary Artery

The largest terminal branch of the external carotid artery, supplying deep structures of the face.

Pterygoid plexus

A network of veins located near the maxillary tuberosity.

Internal Jugular Vein

Drains most of the deoxygenated blood from the brain and face.

Cavernous Sinus

Contains venous blood, located near the brain's base; infections may spread here cause serious health risks.

Periodontal disease

A condition linked to cardiovascular disease, possibly due to oral bacteria entering the bloodstream or inflammation caused by the disease.