Search Results for: secretions
Apocrine gland
The human body is a complex assemblage of many different organs, systems, glands, bones, and tissues. Weighing any one over... Read More
Alimentary canal
Definition of Alimentary canal What is the alimentary canal? The alimentary canal is a muscular hollow continuous tubular... Read More
Epithelium
An epithelium is a type of animal tissue made up of densely packed cells (called epithelial cells) that rest on a basement... Read More
Assimilation
Assimilation Definition What is assimilation? Assimilation in biology is defined as the process in which living organisms... Read More
Menstruation
Definition noun The periodic physiologic discharge through the vagina of blood, cervical mucus, vaginal secretions, and... Read More
Immunoglobulin A
Definition noun An immunoglobulin (antibody) that is characterized by its α-heavy chain, and its prevalence in mucous... Read More
Movement of Molecules Across Cell Membranes
Diffusion Diffusion is essentially the movement of molecules from a region of higher concentration to a region of lower... Read More
Uterine cycle
Definition noun The cycle that depicts the changes in the endometrial lining occurring during a menstrual cycle, and is... Read More
Humoral immunity
Let’s get to know where one should place humoral immunity, the topic of today’s discussion!! By the end of the article,... Read More
Polymenorrhoea
Definition noun A menstrual cycle disorder experienced by certain women, and is characterized by menstrual cycles with... Read More
Osteoblast
Definition noun, plural: osteoblasts A type of bone cell that arises from fibroblasts, and upon maturity, becomes associated... Read More
Hypermenorrhoea
Definition noun The extremely heavy or long periods of menstrual period in a woman of reproductive... Read More
Biological clock
Definition noun, plural: biological clocks Any of the various mechanisms that regulate biological rhythms Supplement A... Read More
Pre-ejaculate
Definition noun The clear colorless fluid emitted from the urethra of an aroused penis prior to ejaculation Supplement In... Read More
Areolar gland
Definition noun, plural: areolar glands Any of the sebaceous glands in the areola surrounding the nipple Supplement Areolar... Read More
Chronobiology
Chronobiology Definition Chronobiology is a branch of biology that studies time-related phenomena (e.g., biological... Read More
Plant Tissues
Plants are composed of three major organ groups: roots, stems, and leaves. As we know from other areas of biology, these... Read More
Circulation
Blood Blood is composed of a liquid, plasma, and blood cells such as erythrocytes (red blood cells,) leukocytes (white... Read More
Digestion and Absorption of Food
The gastrointestinal (GI) system includes the gastrointestinal tract (mouth, pharynx, esophagus, stomach, small intestine,... Read More
Human Reproduction
Terminology and Concepts Primary reproductive organs are called gonads - testes in the male and ovaries in the female.... Read More
Transcellular fluid
Definition noun A bodily fluid found in chambers created by the linings of epithelial cells Supplement The extracellular... Read More
Parasympathetic nervous system
Definition noun A division of the (vertebrate) autonomic nervous system whose physiological effects are mostly in opposition... Read More
Doderleins bacillus
Doderlein's bacillus is a large, Gram-positive bacterium found in vaginal secretions. It is named after the German... Read More
Spontaneous generation
Definition noun plural: spontaneous generations The previously popular notion that living organisms arise or develop from... Read More
Endocrine system
Definition noun The bodily system consists of the endocrine glands, and is responsible for the production and secretion of... Read More
Denaturation
Denaturation Definition In biochemistry, denaturation is defined as a process in which a molecular structure deviates from... Read More
Diaphoresis
What is Diaphoresis? Diaphoresis is referred to excessive or profuse perspiration or sweating which may be due to... Read More