Circulatory System

Tissues: A tissue is a group of similar cells that work together to carry out a particular function.
Organ is a group of different tissues that work together to perform a particular function
The Heart❤️:
Heart has four chambers and four major blood vessels.
The four major blood vessels are :
Pulmonary artery
Vena cava
Aorta
Pulmonary vein
The right atrium…