The biology of the menstrual cycle
By: Mindy Horton
The menstrual cycle is the beginning of the reproductive phase of a woman's life, beginning when a girl hits puberty and ending with the onset of menopause. There are different phases that occur during this cycle, and understanding these phases can give a woman insight...
Anatomy of the male reproductive system
By: Dr Pandula Siribaddana
The male reproductive system is responsible for many different functions; among them, the main function would be the production, maintenance, and transport of male reproductive cells or the ‘sperm’. However, it does not stop at just producing ‘sperms’ as it contributes to the...
Human anatomy: An overview of organs
By: Dr Pandula Siribaddana
The animal body is a collection of tissue elements and, in most instances, these tissues have organized themselves into a recognizable entity. These entities will perform a distint function and therefore are given the name, ‘organ’. Among the organs present in the human body...
Functions of the respiratory system
By: Effie Moore Salem
The air ways, the lungs, and the blood vessels that picks up fresh oxygenated air and send it through to every cell in the body is what life is all about. To trace a bit of air from its entrance into the nostrils—the openings...
A guide to arteries in the human body
By: Dr Pandula Siribaddana
Arteries are the blood vessels which most often carry oxygen rich blood away from the heart, towards other tissues in the body. These blood vessels have a relatively thick muscular wall and can be felt pulsating at certain locations. The arteries terminate by dividing into...
Anatomy of the female reproductive system
By: Dr Pandula Siribaddana
The female reproductive system is composed of several organs located within and outside the body. These organs are adapted to perform several functions related to reproduction and these include the production of an ‘egg’, transportation of the ‘egg’ to a site where it...
Functions of the digestive system
By: Ann Major
The digestive system is a wonderfully integrated and efficient bodily process that handles the intake of food, from the mouth onward to the elimination stage. How long it takes an individual to digest an entire meal is dependent on metabolism, age, health conditions, etc. It...
Functions of the respiratory system
By: Zain Arif
The respiratory system encompasses a wide group of organs and tissues that facilitate breathing. The primary function of this system is to supply the blood with oxygen, which is then delivered to various parts of the body. The main components of the respiratory system are...
Function and importance of the thyroid gland
By: Alicia M Prater PhD
The thyroid gland is a butterfly shaped gland in the throat (see a picture). The thyroid uses the mineral iodine to produce hormones that are involved in the regulation of a number of physiological processes, including metabolism and calcium balance. The importance of a properly...
Overview of types of cells in the nervous system
By: Alicia M Prater PhD
The nervous system contains two types of cells: neurons and neuroglia. Neurons are the basic nerve cell, specialized to carry electrical signals to and from the brain. Neuroglia are the support cells of the nervous system, supporting neuron function. Some subtype of each cell type...

 

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