CIRCULATORY SYSTEM
Is the body’s transport system
It transports nutrients, antibodies, hormones, oxygen
Open Circulatory System – common among vertebrates (organisms that have
backbones)
4 Components of the Circulatory System
Blood –
Heart – pumps blood to different parts of the body
Blood Vessels – has 3 major types (arteries, capillaries, veins)
Lymph
Types of Blood Vessels
Arteries – carries the blood away from the heart.
Veins – carries the blood from the capillaries and back to the heart.
Capillaries – is where the exchange of water and chemicals occurs.
Two Divisions of Circulatory System
Cardiovascular System – transports blood
Lymphatic System – transports fluid
3 Layers of the Heart
Epicardium – outermost layer
Myocardium – muscular part of the heart wall
Endocardium – innermost layer that lines the heart cavities
4 Chambers of the Heart
Right Atrium – receives oxygen and pumps blood from the vena cava
Left Atrium – receives blood from the pulmonary veins
Right Ventricle – pumps blood to the lungs for oxygenation
Left Ventricle – pumps oxygen
More info:
Atria – receives chambers of the heart
Superior Vena Cava – carries blood from the upper body part of the heart
Inferior Vena Cava – carries the blood from the lower body part of the heart.
Components of Blood
