Compare the structure and function of arteries, Veins and capillaries

What are the types of blood vessels

Arteries (away from the heart), Veins (towards the heart) and capillaries (root like structure)

What are veins

Blood vessels into the heart

What are blood vessels

Carry blood from the heart to all body tissues and back to the heart and form a 100,000km CLOSED fluid delivery system of dynamic pulsating tubes that can grow.

What is the basement membrane of blood vessels

Connective tissue which surrounds the Endothelium (tunica intima)

What are Capillaries

Microscopic, lined with single layer of endothelium surrounded by a basement membrane found everywhere except- epidermis, cartilage, cornea and lens (eye). They enable oxygen, nutrients like CHO, hormones and electrolytes to leave the blood and enter the cells Carries waste products like carbon dioxide and urea way from the cells to be eliminated via the lungs and kidneys.

What is the Tunica media layer

Middle layers of the blood vessel, made of smooth muscle

What is Tunica externa

Outer most layer of blood vessel, made of connective tissue

What are Arterioles

Small arteries that carry blood towards the capillaries

What is the Tunica intima

The inner most layer (in intimate contact with blood) - Endothelium

What is venous Return

The return of blood to the heart which involves valves to shift blood upwards and stop it falling backwards, skeletal muscle to contract the diaphragm along with deep breathing.

What are Artieries

Thick Blood vessels made form smooth muscle that carrie blood away from the heart

What is the Endothelium

inner most lining of the blood vessels (tunica intima)

What is the structure of a vein

large reservoirs with decreased blood pressure which is way they need valves to help shift the blood toward the heart and stop it falling backwards