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In 1829 Dobereiner proposed the Law of Triads: Middle element in the triad had atomic weight that was the average of the other two members.

Malaria affects Spleen.
Rickets affects Bone.
Leukemia affects Blood.
Causative organism of Pyorrhoea- Entamoeba gingivalis.
Affects gums and spreads through saliva.

Father of surgery – Sushruta.
Father of Virology – W.M Stanley.
Father of anatomy – Herophilus

Vitamin D is actually a hormone rather than a vitamin; it is required to absorb calcium from the gut into the bloodstream.
Vitamin D helps your body absorb calcium. Calcium is one of the main building blocks of bone. A lack of vitamin D can lead to bone diseases such as osteoporosis or rickets. Vitamin D also has a role in your nerve, muscle, and immune systems.

The term species was coined by John Ray.
The term biology was coined by Lanmrk. Father of Endocrinology – T.Addison.

Anaerobic respiration is a type of respiration that does not use oxygen. It is used when there is not enough oxygen for aerobic respiration.

The top number refers to the amount of pressure in your arteries during the contraction of your heart muscle. This is called systolic pressure.

The bottom number refers to your blood pressure when your heart muscle is between beats. This is called diastolic pressure.

The systemic circulation provides the functional blood supply to all body tissue. It carries oxygen and nutrients to the cells and picks up carbon dioxide and waste products. Systemic circulation carries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body.

Electrocardiography is the process of recording the electrical activity of the heart over a period of time using electrodes placed on the skin.

Electrocardiography is the process of producing an electrocardiogram (ECG or EKG), a recording – a graph of voltage versus time – of the electrical activity of the heart using electrodes placed on the skin.

The kidneys are two bean-shaped organs, each about the size of a fist. They are located just below the rib cage, one on each side of the spine. Every day, the two kidneys filter about 120 to 150 quarts of blood to produce about 1 to 2 quarts of urine, composed of wastes and extra fluid.

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