Human Digestive System
Human Respiratory System
Human Circulatory System (L.S. of Heart & Cardiac Cycle Both)
Human Excretory System
Write short notes on each of these systems and the working of the organs(50-100 WORDS).
AT A CLASS 10 LEVEL
Answers
Answer:
HUMAN DIGESTIVE SYSTEM
The digestive system is the parts of the body that digest food; it is also called the gastrointestinal system. It breaks down food into simple chemicals that can be absorbed into the blood stream. From the blood stream, nutrients go first to the liver, which is a kind of chemical factory for the body. The liver adjusts the nutrients so that the mix is what the body needs.
HUMAN RESPIRATORY SYSTEM
The respiratory system, also called the gas exchange system, is the body getting rid of carbon dioxide and taking in oxygen. ... Inhalation means bringing air rich in oxygen into the body. Exhalation means giving out air rich in carbon dioxide from the body.
HUMAN CIRCULATORY SYSTEM
The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide
HUMAN EXCRETORY SYSTEM
The Excretory system is responsible for the elimination of wastes produced by homeostasis. There are several parts of the body that are involved in this process, such as sweat glands, the liver, the lungs and the kidney system. Every human has two kidneys.
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