(BIO) Circulation Vocab 1

Anterior Vena Cava

• vein that delivers blood from anterior part of the body into the right atrium

Antibody

• triplet of nucleotides released by white blood cells (Bcell lymphocyte) in response to foreign antigens

• y-shaped protein

Antigen

• substance capable of stimulating release of antibodies

• chemical substances (toxins), cell markers (glycoproteins / lipids)

Aorta

• largest artery of the body, conducting oxygenated blood out of left ventricle

• Include coronary, carotid, sublavian arteries

Arterial Duct

• fetal artery connecting pulmonary trunk to aorta, allowing blood to bypass nonfunctional lungs

Atrioventricular Valve

• valve made from connective tissue allows blood to pass from atria to ventricles

Autonomic Nervous System

• governs smooth muscles, glands and utilizes motor and sensory neurons

Atrioventricular node

• transmits impulses received from SA node to ventricular valves

Blood

• connective tissue which cells are separated by plasma

Blood pressure

• force of blood pushing against inside wall of artery

Blood velocity

• speed of blood through a vessel

• high pressure in arteries

• low pressure in capilleries

Blood Vessel

• tubular structure that carries blood

• capillaries, veins, venules, arteries, arterioles

Capillary-tissue fluid exchange

• exchange of fluid materials between blood in capillary 

• extracurricular fluids in tissues

Carotid artery

• branch of aorta that delivers blood to the head

Coronary vein

• delivers blood from heart tissue to right atrium