Circulatory system LESSON 2 SCIENCE

Circulatory System

consists of organs and fluids that transport materials across the body

Arteries

semi-elastic vessels that carries the oxygenated blood away from the heart to the cells, tissues, and organs of the body

Vein

A type of blood vessel that carries deoxygenated blood to the heart from all parts of the body.

Capillaries

are the smallest and most numerous of blood vessels into the body, connecting the smallest arteries to the smallest veins

Pulmonary Circulation

the movement of the blood from the heart, to the lungs, and back to the heart

Systemic Circulation

the movement of blood from the heart to the rest of the body, excluding the lungs

Plasma

takes nutrients, hormones, and proteins to the parts of the body that need it

Blood Pressure

The force of blood pushing against the walls of the blood vessels.

Aorta

The largest artery in the body; it conducts freshly oxygenated blood from the heart to the tissues.

Superior and Inferior Vena Cava

The two largest veins in the body.

Artierioles

Branch off/Small arteries.

Venules

Small veins.

Right and Left Atrium

The two upper chambers of the heart.

Right and Left Ventricles

The two lower chambers of the heart.

Valves

Is in between each atrium and ventricle to prevent the blood from flowing backwards

Red Blood Cells

delivers oxygen from your lungs to your tissues and organs

White Blood Cells

fights infection and are part of your immune system

Platelets

helps blood to clot when you have a cut or a wound

Hemoglobin

complex protein made up of four protein strands, plus iron-rich, hemegroups

Oxygenated and Deoxygenated blood

2 types of blood

Oxygenated blood

type of blood that contains nutrients and oxygen and found in arteries

Deoxygenated blood

type of blood that is low in oxygen

Blood

it carries the materials throughout the body

Right atrium, Left atrium, Right Ventricle, Left Ventricle

These are the four chambers of heart

Atria

The receiving chambers of the heart, accepting blood from the body and the lungs

Ventricles

the pumping chambers of the heart moving blood to the lungs and into the body

Coronary Circulation

The movement of blood through the tissue of the heart

Erythrocytes

what is the other name for red blood cells

Leukocytes

what is the other name for white blood cells

Thrombocytes

what is the other name for platelets