The Physiological System In The Human Body
The human body performs various activities like breathing, eating, running. Each part of the body has specific functions which help the body perform these various activities. Let us learn the functions of the different parts of the human body.
Human Physiological Systems
The basic physiological systems in the human body are:
• The nervous system - the brain, spinal cord and the nerves.
• The muscular and skeletal system - the bones, muscles and the connective tissues.
• The circulatory system - the heart, arteries and veins.
• The respiratory system - the upper and lower respiratory tracts. The upper respiratory tract consists of nose, sinuses. The lower respiratory tract comprises of trachea, bronchi and the alveoli.
• The digestive system - the mouth, esophagus (food
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The ribs form a cage that shelters the heart, lungs, liver, and spleen, and the pelvis helps protect the bladder, intestines, and in girls, the reproductive organs. Although they’re very light, bones are strong enough to support our entire weight.
In addition to their structural role, the larger bones in the body contain bone marrow where blood cells are produced. But bones are rigid and inflexible. So with just the bones, you will not be able to walk or move your hands and legs. You need muscles for flexibility and they also support the bones in activities like walking and running. The muscles form the bulk of the body organs. The bones and muscles together are responsible for the movement of the body organs. Muscles are also connecting structures that hold the various organs in place. The bones are attached to the muscles by tissues called Tendons. The muscular and skeletal systems hold the body in place.
Circulatory System
The heart and circulatory system (also called the cardiovascular system) make up the network that delivers blood to the body’s tissues. With each heartbeat, blood is sent throughout our bodies, carrying oxygen and
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