All About Human Body

The daily life reactions, emotions, movements, memories, control over of the body and various reactions are under the great control system of the body called the nervous system. In which we have the mission control system called The Brain which has the network of neurons in billions. The neurons look different from other cells by having many branches which communicate with each other very fast and instinct through the chemicals and electrical disturbances. It is like the  Lighting storm+ Chemical storm. The brain is acceptable with a little practice. The more we practice, the more it learns and the more is encoded in the brain. When we practice something repeatedly the brain changes according to it which is called as  The Neuroplasticity . The more practice we do- day in and day out makes our neurons change their shape and shift their position, by this the pathway is fixed hence the connection between different regions of the brain strengthens. The emotions and nervous system...

 ANIMAL KINGDOM.. 1) Porifera : Sycon - Scypha Spongilla - Fresh water sponge Euspongia - Bath sponge 2) Cnidarians/ Coelenterates : Hydra - Freshwater polyp Adamsia - Sea anemone Obelia - Sea fur Aurelia - Jelly fish Physalia - Portuguese man of war Pennatula - Sea pen Gorgonia - Sea fan Meandrina - Brain coral 3) Ctenophora : Ctenoplana - Comb jelly Pleurobrachia - Sea gooseberry 4) Platyhelmenthis : Planaria - Dugesia ( free living ) Taenia - Tapeworm Fasciola - Liver fluke 5) Aschelminthes : Ascaris - Round worm Wuchereria - Filarial worm Ancylostoma - Hook worm 6) Annelida : Neries - Bristle worm Phertima - Earthworm Hirudinaria - Blood sucking leech 7) Arthropoda : Economically Important: Apis - Honey bee Bombyx - Silkworm Laccifer - Lac insect Vectors (mosquitoes) : Anopheles - Malaria mosquito  Culex - Common house mosquito  Aedes -  Yellow fever mosquito Gregarious pest : Locusta - Locust Living fossil :  Limulus - King crab 8) Mollusca : Pila - ...

A complex and confusing stage of life where we come across many changes in the body physically and mentally because we grow from childhood to adolescence in the age of 10-19 years. Due to these ongoing changes we face a lot of confusion and stress to decide whether we belong to childhood or adulthood. The changes occurring in females and males are different. It is a period of major transitions in the body like: 1. Increase in height : An individual will attain the maximum height in this age. Initially females grow faster than boys and by the age of 18years they reach maximum height. 2. Voice change : In the age of adolescence the voice of the male child become hoarse because of the development of Adam's apple, this is due to elongation of the largest cartilage of larynx called thyroid gland which elongates and protudes out of the neck.  As a result the cartilage becomes loosened and thickened and when the air passes through this gives a hoarse voice.  The female's voice is jus...

An alarming raise of population lead to the idea of family planning and control birth rate which is feasible by contraceptive methods. An ideal contraceptive should be  User friendly. Effective. Least side effects. Reversible. It should no way interfere with the sexual drive of the user. At present a wide range of contraceptive methods are being used like        1. Natural/Traditional : This works on avoiding the natural meeting of sperm and ovum.All though the natural method of contraception has no side effects but it is not much effective.The different natural methods we have are: Periodic  abstinence : The 10-17th day of mentrual cycle is a fertile period as there is a high chance of fertilization.Hence, the couple avoid coitus to prevent conception. Withdrawl/coitus interuption : To prevent ejaculation the male withdrawls his penis from the vagina of the women to avoid insemination. lactational amenorrhea : The intense laction during the post parturitio...

AIDS stands for Acquired Immuno Deficiency Syndrome which is a sexually transmitted disease caused by the HIV virus. It is a deadliest non congenital disease which is acquired during the lifetime of a person which affects the immunity,leading to group of symptoms known as syndrome. ☆Aids spread only through body fluids. Transmission of AIDS occurs by  : Sexual contact with the infected persons/ having multiple sex partners. Transfusion of contaminated blood and blood products. Sharing infected needles (mostly in the case of intravenous drug abusers). Infected mother to child through placenta. Symptoms : Bouts of fever Diarrhea Weight loss Loss of appetite  Diagnostic test  :  ELISA Death is inevitable in AIDS🎗.

A reproductive cycle which is seen in female primates which include apes, monkeys, and humans. it begins in the puberty and the first menstrual cycle is called menarche which ceases around 50 years and termed as menopause.it is a periodic cycle of 28/29 days on an average. It has 4 stages. 1) Menstrual phase : It lasts for 3-5days. Degeneration of corpus luteum takes place. Levels of progesterone and oestrogen decreases, which leads to the breakdown of endometrium. 2) Follicular phase : it is also known as proliferative phase. Development of follicles occur. Level of hormones and formation of endometrium increases gradually . 3) Ovulation phase :  it happens on the 14th day. Size of the follicle increases which leads to the drastic increase in LH (LH surge) and FSH levels. The increase in FSH level promotes ovulation. 4) Luteal phase : it is also termed as secretory phase. IN this phase the remaining parts of graafian follicle transforms into corpus luteum, which releases high amou...