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SLS BIO 12 CIRC. LM

circulatory system

TermDefinition
Anterior Vena Cava carries deoxygenated blood from the upper half of the body to the heart's right atrium
Antibody proteins that are produced by the immune system to help stop harm from occurring, produced by the B cells (a type of white blood cell)
Antigen Any of the various substances that when recognized as non-self by the adaptive immune system triggers an immune response, stimulating the production of an antibody that specifically reacts with it.
Aorta the main artery of the body, supplying oxygenated blood to the circulatory system
Arterial Duct connects the left pulmonary artery with the descending aorta and that normally closes at birth
Atrioventricular Valve a valve between an atrium and ventricle of the heart
Autonomic Nervous System the part of the nervous system responsible for control of the bodily functions not consciously directed, such as breathing and the heartbeat.
Atrioventricular Node (AV) transmits heartbeat impulses to the ventricles.
Blood the red liquid that circulates in the arteries and veins of humans
Blood Pressure The blood pressure is the pressure of the blood within the arteries. It is produced primarily by the contraction of the heart muscle. Measure at the highest (systole) and the lowest (diastole)
Blood Velocity a measurement of the rate at which blood moves through a particular vessel.
Blood Vessel a tubular structure carrying blood through the tissues and organs; a vein, artery, or capillary.
Capillary Tissue Fluid Exchange Oxygen and nutrients entering tissue fluid from the blood and CO2 and metabolic wastes leaveing the tissue fluid and enter the blood
Carotid Artery major blood vessels in the neck that supply blood to the brain, neck, and face
Chordae Tendineae cord-like tendons that connect the papillary muscles to the tricuspid valve and mitral valve
Coronary Artery The vessels that supply the heart muscle with blood rich in oxygen
Coronary Vein Any of the veins that drain blood from the muscular tissue of the heart and empty into the coronary sinus.
Diastolic Pressure The blood pressure when the heart is filling back up with blood after contraction
Fetal Circulation The blood circulation in a fetus
Heart Rate How many times your heart contracts in a certain period of time
Hepatic Portal Vein a vein conveying blood to the liver from the spleen, stomach, pancreas, and intestines.
Hepatic Vein the blood vessels that drain de-oxygenated blood from the liver and blood cleaned by the liver (from the stomach, pancreas, small intestine and colon) into the inferior vena cava.
Hypertension High blood pressure
Hypotension low blood pressure
Iliac Artery either of two large arteries that conduct blood to the pelvis and the legs
Iliac Vein a vein that drains the leg and lower part of the anterior abdominal wall
Jugular Vein any of several large veins in the neck, carrying blood from the head and face.
Left Atrium a vessel for blood returning from the lungs
Left Ventricle a vessel that pumps oxygenated blood to tissues all over the body
Lymph Capillaries tiny, thin-walled vessels located in the spaces between cells that drain and process extra-cellular fluid.
Lymph Node each of a number of small swellings in the lymphatic system where lymph is filtered and lymphocytes are formed.
Lymphatic System the network of vessels through which lymph drains from the tissues into the blood.
Lymphatic Veins Larger lymphatic vessels that are formed when several lymph capillaries join together.
Mesenteric Artery One of the arteries which arises from the abdominal portion of the aorta and distributes blood to most of the intestines
Oval Opening the septum between the right and left atria of the fetal heart
Plasma a medium to transport essential substances in blood.
Platelets A particle found in the bloodstream that binds to fibrinogen at the site of a wound to begin the blood clotting process. Formed in the bone marrow.
Posterior Vena Cava A large vein that receives blood from the lower extremities, pelvis and abdomen and delivers it to the right atrium of the heart.
Pulmonary Arteries the artery carrying blood from the right ventricle of the heart to the lungs for oxygenation.
Pulmonary Circulation the movement of blood from the heart, to the lungs, and back to the heart again
Pulmonary Trunk A vessel that arises from the right ventricle of the heart, extends upward, and divides into the right and left pulmonary arteries that convey unaerated blood to the lungs
Pulmonary Veins Oxygenated blood returning to the heart to be pumped to the rest of the body
Purkinje Fibres transmit impulses from the atrioventricular node to the ventricles.
Red Blood Cell contain the pigment hemoglobin, which imparts the red color to blood, and transport oxygen and carbon dioxide to and from the tissues.
Renal Artery origin in the aorta and with distribution to the kidney.
Renal Vein drain the kidney and return to the inferior vena cava
Right Atrium Deoxygenated blood inters the right atrium through the inferior and superior vena cavas.
Right Ventricle responsible for pumping deoxygenated blood to the lungs.
Sinoatrial Node (SA) acts as a pacemaker by producing a contractile signal at regular intervals, starts the contraction of the atria
Semi-Lunar Valve each of a pair of valves in the heart, at the bases of the aorta and the pulmonary artery, consisting of three cusps or flaps that prevent the flow of blood back into the heart.
Septum A partition separating two chambers, such as that between the chambers of the heart.
Subclavian Artery located just below the collar bone and supply blood to the arms
Subclavian Vein return blood from the arms to the heart.
Systemic Circulation the part of the cardiovascular system which carries oxygenated blood away from the heart to the body, and returns deoxygenated blood back to the heart
Systolic Pressure The blood pressure when the heart is contracting
Total Cross-Sectional Area a transverse cut through a structure or tissue
Umbilical Artery Either of two arteries that before birth is a continuation of the common iliac artery
Umbilical Vein a vein that passes through the umbilical cord to the fetus and returns the oxygenated and nutrient blood from the placenta to the fetus
Valve A device that controls the flow of a fluid through a pipe.
Veins any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood toward the heart.
Venous Duct receives blood from the umbilical vein and directs it to the inferior vena cava acts as a liver bypass
Vessel Wall a tubular structure that transports such body fluids as blood and lymph
White Blood Cell a colorless cell that circulates in the blood and body fluids and is involved in counteracting foreign substances and disease
Created by: LMKay