Ohne Titel

Circulatory system

Functions

Parts

Distribute oxygen and food throughout the body

Collect carbon dioxide and excretion products from the cells.

Heart

Blood vessels

Blood

It is an organ the size of a fist, located on the left side of the chest.

Parts

Movements

4 cavities

2 auricles

2 ventriculas

The atria with the ventricles are communicated through the valves

Systole

Diastole

Relaxation movements

Contraction movements

It is a network of ducts where the blood circulates

Arteries

Veins

Capillaries

They leave the heart and branch throughout the body in arterial capillaries

They are branches of the arteries and veins

They return blood to the heart and branch into venous capillaries

Red liquid that, driven by the heart, circulates through the blood vessels of the body

Plasma

Red blood cells (erythrocytes)

Platelets (thrombocytes)

White blood cells (leukocytes)

It consists basically of water and certain dissolved substances (mineral salts, glucose, lipids and proteins)

They are cells without a nucleus and full of hemoglobin, which is a protein capable of capturing and releasing oxygen.

They have the function of producing antibodies

They are fragments of cytoplasm that contain a substance that initiates the coagulation of the blood.