Топ-100

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Neuron

A neuron is a nerve cell that carries electrical impulses. Neurons are the basic units of our nervous system. Neurons have a cell body soma or cyton, dendrites and an axon. Dendrites and axons are nerve fibers. There are about 86 billion neurons ...

                                               

Spinal cord

The spinal cord is a bundle of nerves that go to and from the brain. It is enclosed in and protected by the bony vertebral column. The main function of the spinal cord is transmission of neural inputs between the periphery and the brain.

                                               

Escape reflex

Many animals have one or more special escape reflexes. These get the animal out of trouble quickly. They use special nervous structures to do this. Examples: Most fish have a special response system known as "C-start". It is done by the Mauthner ...

                                               

False pregnancy

A false pregnancy, hysterical pregnancy or pseudopregnancy is when a mammal shows some of the symptoms associated with a pregnancy, but without being pregnant. False pregnancies commonly occur in dogs and mice. False pregnancy in humans is less c ...

                                               

Female ejaculation

Female ejaculation, also known as gushing or squirting, happens when a woman has an orgasm and clear fluid comes out of her. Scientists are not sure how the fluid is produced, but think it is produced by the Skenes glands. Female ejaculation was ...

                                               

Menstrual cycle

The menstrual cycle is a process that adult human women can go through. The menstrual cycle for a woman will repeat every 28 days while they are not pregnant. During this time, the womens ovaries create a mature ovum. Then the womans body prepare ...

                                               

Menstruation

Menstruation, or menses, is when an unfertilized female has blood come out of her vagina for 2–7 days every month. A more common word for menstruation is a period ".

                                               

Ejaculation

Ejaculation is when a male person shoots out liquid from his erect penis after it has been aroused or stimulated. It happens when he has an orgasm. This article is about ejaculation in human beings. When a man is stimulated, his penis becomes ere ...

                                               

Erection

An erection of a body part such as a mans penis, a womans clitoris or a nipple refers to it becoming larger and harder. The term erection is most often used to refer to an erection of the penis. It is widely believed that a mans penis needs to be ...

                                               

Human penis size

Human penis size is described by length and circumference of penis. It is larger than in any other primate. The size depends on arousal level, time of day, room temperature, frequency of sexual activity, and unreliability of the measurement metho ...

                                               

Male reproductive system

The male reproductive system consists of the penis, scrotum, testicles and a variety of the interior glands like the prostate. All these bodies parts are very important when it comes to the normal functioning of the body. Each one of them has a d ...

                                               

Prostatitis

Prostatitis is any form of inflammation of the prostate gland. Because women do not have a prostate gland, it is a condition only found in men, although women do have microscopic paraurethral Skenes glands connected to the distal third of the ure ...

                                               

Semen

Semen is the fluid that comes out from the end of a mans penis when he has an orgasm and ejaculates. It is usually a white or yellowish, sticky substance made up of sperm floating in a fluid called seminal plasma that has water and different chem ...

                                               

Larynx

The larynx, also known as the voice box, is an organ in the neck of humans and animals. It helps to protect the wind pipe by stopping it from inhaling food. It also helps with breathing and making sounds. The larynx houses the vocal cords.

                                               

Lung

The lung is an organ in many vertebrates. It takes blood oxygen from the air, and expels carbon dioxide. Most vertebrates with lungs have two of them. In animals, the lungs are the area where gas exchange takes place. Without gas exchange, oxygen ...

                                               

Nasal cavity

The nose cavity is divided into a right and left passageway. The tissue that covers the wall of your nasal cavity contains many blood vessels. Heat from the blood in the vessels helps warm the air as you breathe. Moisture small amount of water is ...

                                               

Respiratory tract

The trachea then splits into the two main bronchi. This split happens at a place called the carina, which is behind the middle of the sternum breastbone. The bronchi are two tubes which carry air into the lungs. The main bronchi then split into s ...

                                               

Swim bladder

The swim bladder is an internal gas-filled organ. It helps many bony fish to control their buoyancy. Fish with a swim bladder can stay at their current water depth without having to waste energy in swimming. The dorsal position of the swim bladde ...

                                               

Absolute threshold of hearing

The absolute threshold of hearing is the minimum loudness of a pure tone that an average ear with normal hearing can hear with no other sound present. The absolute threshold relates to the sound that can just be heard by the organism. This is als ...

                                               

History of hearing aids

The first modern hearing aids were made in the 17th century. Even though that was when they first became popular, since the 13th century people had already been making similar devices by hollowing out the horns of animals. Hearing aids did not im ...

                                               

Inner ear

The inner ear is the innermost part of the vertebrate ear. It is mainly responsible for sound detection and balance. In mammals, it consists of two main working parts inside a bony labyrinth: The cochlea, dedicated to hearing, converting sound pr ...

                                               

Sensorineural

Sensorineural hearing loss is the most common and one of the main types of hearing loss. It is also known as "nerve deafness". Unlike the other main type of hearing loss - conductive hearing loss - sensorineural hearing loss is permanent. Not onl ...

                                               

Kidney

Kidneys are two organs in the abdomen of vertebrates that are shaped like beans. They make urine They are part of the urinary system. When medical professionals discuss the kidneys, they typically refer to the word renal. For example, renal failu ...

                                               

Urethra

The urethra is a tube that connects the bladder to the outside of the body. It allows people and animals to remove urine from the body. People and animals control urination using the urethral sphincter. The urethra is part of the urinary system i ...

                                               

A-League

The A-League is an association football league which is the top division in Australia and New Zealand. It was established in 2004 as a replacement to the National Soccer League and started in August 2005. Unlike professional soccer leagues in mos ...

                                               

Central Australian Aboriginal Media Association

The Central Australian Aboriginal Media Association is an Australian organisation that supports Aboriginal music and culture. It was created as a public radio station in 1980, and started broadcasting in Alice Springs in 1988. CAAMA now operates ...

                                               

Kids Help Line

The Kids Helpline is a counselling service in Australia for people who are between 5 and 25 years old. Children & young people ring Kids Helpline to speak about problems in their lives. These problems range from fighting with friends and breaking ...

                                               

Lifeline (crisis support service)

Lifeline is a non-profit organisation that provides free, 24-hour telephone support to people in need. Lifeline Assistance do not make any profit. A lifeline Assistance called Volunteer Crisis Supporters provides suicide prevention services and m ...

                                               

Ngaanyatjarra Pitjantatjara Yankunytjatjara Womens Council

The Ngaanyatjarra Pitjantjatjara Yankunytjatjara Womens Council is a community-based organisation that serves women of the Ngaanyatjarra, Pitjantjatjara and Yankunytjatjara communities in remote central Australia. It was formed in 1980, with its ...

                                               

Swadhin Bangabhumi Andolan

Bangabhumi also known as Bir Bango, is a separatists movement to create a Hindu country using southwestern East Bengal envisioned by Banga Sena of Bangladesh. The movement was founded in 1973 in the Republic of India soon after Bangladeshi indepe ...

                                               

Liberal Democratic Party (Japan)

The Liberal Democratic Party is one of the main political parties in Japan. It has ruled Japan for most of the time since World War II. The party is conservative. The current leader is Yoshihide Suga. The party wants a close relationship with the ...

                                               

Pacific League

The Pacific League or Pa League is one of the two professional baseball leagues constituting Nippon Professional Baseball in Japan. There are six teams in the league.

                                               

General Medical Council

The General Medical Council is a fee-based registered charity with statutory obligation to maintain a register of medical practitioners within the United Kingdom. Registration with the GMC confers a number of privileges and duties.

                                               

Heritage Lottery Fund

The Heritage Lottery Fund is a fund established in the United Kingdom under the National Lottery etc. Act 1993. The Fund opened for applications in 1994. It uses money raised through the National Lottery to transform and sustain the UK’s heritage ...

                                               

Institution of Electrical Engineers

The Institution of Electrical Engineers was a British professional organisation of electronics, electrical, manufacturing, and Information Technology professionals. It focused on electrical engineers. The I.E.E. was founded in 1871 as the Society ...

                                               

The Magic Circle

The Magic Circle is a British organisation. Members of the organisation learn about and promote the art of magic. The Magic Circle started in 1905 and is based in London. The group comprises Allen & Overy, Clifford Chance, Freshfields Bruckhaus D ...

                                               

Real Irish Republican Army

The Real Irish Republican Army is a group from Ireland who want Northern Ireland to become part of the Republic of Ireland, and want it to leave the United Kingdom. The group started after they left the Provisional Irish Republican Army, after an ...

                                               

Royal Institute of British Architects

The Royal Institute of British Architects is a professional organisation for architects in the United Kingdom. It was originally named the Institute of British Architects in London and formed in 1834. The group was started by several important ar ...

                                               

Stop the War Coalition

The Stop the War Coalition is a British group created on 21 September 2001, shortly after the September 11 attacks. It was created to campaign against what it believes are unjust wars. The group has campaigned against the wars that are part of th ...

                                               

Ulster Volunteer Force

The Ulster Volunteer Force is a loyalist paramilitary group based in Northern Ireland. It was formed in 1966. It takes its name from the UVF of World War I. The Ulster Volunteer Force was started as a Protestant / Unionist militia in 1912 to oppo ...

                                               

350.org

350.org is an international environmental organization. It was started by author Bill McKibben, with the goal of building a global grassroots movement to fight against global warming and the climate change denial of global warming. However the ma ...

                                               

American Institute of Architects

The American Institute of Architects or the AIA is an organization for architects in the United States. It is headquartered in Washington, D.C. The AIA offers education, government advice, community redevelopment, and public outreach to support t ...

                                               

Arc of the United States

The Arc of the United States is a network of non-profit organizations. It serves people with intellectual and developmental disabilities. It was created in the 1950s by parents of people with disabilities. Since then, the organization has extende ...

                                               

Authors Guild

The Authors Guild is Americas oldest and largest professional organization for writers. It works to protect free expression and copyright. It started in 1912 as the Authors League of America. Notable authors of fiction, nonfiction, and poetry hav ...

                                               

College Board

The College Board is a group that manages standardized tests in the United States, like the SAT, to test students abilities in certain subject areas. It was founded in 1900, known then as the College Entrance Examination Board.

                                               

Democratic Governors Association

The Democratic Governors Association is a Washington, D.C. based 527 organization. It started in 1983. Members are U.S. state and territorial governors who are also members of the Democratic Party. The mission of the organization is to create par ...

                                               

Dzemijetul Hajrije

Dzemijetul Hajrije is the oldest Muslim organization in the United States. It is a benevolent society started in 1906 to help Muslim immigrants from Bosnia.

                                               

Guilford Native American Association

The Guilford Native American Association is a Native American community association in Guilford County, North Carolina. It is a North Carolina State-recognized American Indian Organization, and is a United Way referral agency. Started in Septembe ...

                                               

Hurst-Euless-Bedford Independent School District

Hurst-Euless-Bedford Independent School District is a government organization that runs public schools. HEB ISD has students in pre-kindergarten to grade 12. Almost all students in Bedford, Euless, and Hurst go to HEB ISD schools. Some students i ...

                                               

International Justice Network

The International Justice Network leads human rights initiatives around the world by giving legal help and skill to victims of human rights abuses and by making a global network of legal professionals, non-governmental organizations and community ...

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Pino - logical board game which is based on tactics and strategy. In general this is a remix of chess, checkers and corners. The game develops imagination, concentration, teaches how to solve tasks, plan their own actions and of course to think logically. It does not matter how much pieces you have, the main thing is how they are placement!

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