Functions: circulation of oxygen, nutrients, hormones, ions and fluids, removal of metabolic waste
The cardiovascular system includes the heart, blood vessels and blood. All these are involved in…
Circulatory System
Composition of blood
The components of blood include plasma (the liquid portion, which contains water, proteins, salts, lipids,…
Systolic and diastolic pressure
Blood pressure is the pressure of the fluid (blood) against the walls of the blood…
Four-chambered heart: structure and function
The heart is a complex muscular organ that pumps blood through the three divisions of…