Search Results for: release
Positive feedback
Positive Feedback Definition Each mechanism of the body like temperature, blood pressure, and levels of specific nutrients... Read More
Endoplasmic reticulum
Endoplasmic Reticulum Definition The endoplasmic reticulum is a membrane-bound organelle in cells of eukaryotic cells... Read More
Homeostasis
Homeostasis is the tendency not to stray from the range of favorable or ideal internal conditions. Such conditions must be... Read More
Release phenomenon
release phenomenon The increased tonus and hyperirritability of muscle-stretch reflexes which occur following damage of the... Read More
Sarcoplasmic reticulum
Definition noun plural: sarcoplasmic reticula (cell biology) The special type of smooth endoplasmic reticulum found in... Read More
Pituitary gland
Definition noun, plural: pituitary glands An endocrine gland situated off the bottom of the hypothalamus, and acts as the... Read More
Circulation
Blood Blood is composed of a liquid, plasma, and blood cells such as erythrocytes (red blood cells,) leukocytes (white... Read More
Adipose tissue
Adipose Tissue Definition Adipose tissue, a specialized variety of connective tissue, is composed of lipid-rich cells known... Read More
Catabolism
Catabolism Definition Catabolism is the branch of the metabolic process that breaks down complex, big molecules into... Read More
Glycolysis
What is Glycolysis and Why is it Important? Glycolysis is a metabolic pathway by which the 6-carbon molecule of glucose is... Read More
Feedback mechanism
Feedback Mechanism Definition What is a feedback mechanism? A feedback mechanism is a physiological regulation system in a... Read More
Golgi apparatus
Golgi Apparatus Definition The Golgi apparatus is a membrane-bound organelle in eukaryotic cells. It plays a crucial role... Read More
Energy coupling
What is Energy Coupling? Work, whether it be physical or biological, requires energy to be expended. In biological... Read More
Human Reproduction
Terminology and Concepts Primary reproductive organs are called gonads - testes in the male and ovaries in the female.... Read More
Apocrine gland
The human body is a complex assemblage of many different organs, systems, glands, bones, and tissues. Weighing any one over... Read More
Animal Growth Hormones
Reviewed by: Mary Anne Clark, Ph.D. As mentioned in the previous tutorial, hormones are produced in... Read More
Axon terminal
An axon terminal is any of the button-like endings of axons through which axons make synaptic contacts with other nerve... Read More
Photosynthesis
Photosynthesis is a physio-chemical process carried out by photo-auto-lithotrophs by converting light energy into chemical... Read More
Prolactin-releasing hormone
Definition noun, plural: prolactin-releasing hormones A polypeptide hormone originating in the hypothalamus, and whose... Read More
Centrosome
Centrosome Definition What is a centrosome? The centrosome is considered to be the main microtubule-organizing... Read More
Actions of Caffeine in the Brain with Special Reference to Factors That Contribute to Its Widespread Use
IV. Actions of Caffeine on Brain Functions and Behavior Having discussed the molecular and neuronal actions of caffeine,... Read More
Thyrotroph
Definition noun, plural: thyrotrophs The cell in the anterior pituitary that particularly releases thyroid-stimulating... Read More
Glycocalyx
What is the Glycocalyx? The glycocalyx is a polysaccharide-based gel-like, highly hydrous cellular thin layer, covering... Read More
Digestion and Absorption of Food
The gastrointestinal (GI) system includes the gastrointestinal tract (mouth, pharynx, esophagus, stomach, small intestine,... Read More
Anaerobic respiration
Anaerobic Respiration Definition What is anaerobic respiration? Anaerobic (cellular) respiration is a respiratory process... Read More
Hormone Production
Reviewed by: Mary Anne Clark, Ph.D. Hormones are chemical messengers produced by glands in the endocrine system.... Read More
Somatotroph
Definition noun, plural: somatotrophs The hormone-secreting cell in the anterior pituitary that particularly releases... Read More
Protein Activity and Cellular Metabolism
Protein Binding Sites The ability of various molecules and ions to bind to specific sites on the protein surface forms the... Read More
Pathobiology of allergy and its most severe form, anaphylaxis
When allergy season looms, some people with serious hypersensitivity to allergens tend to be apprehensive of what may come.... Read More
Corticotroph
Definition noun, plural: corticototrophs The cell in the anterior pituitary that particularly releases adrenocorticotropic... Read More
Neural Control Mechanisms
Nerve cells called neurons generate electric signals that pass from one end of the cell to another and release chemical... Read More
Transcription (biology)
In biology, transcription is the process of transcribing or making a copy of the genetic information stored in a DNA strand... Read More
Follicle-stimulating hormone
Follicle Stimulating Hormone Definition In the pituitary gland of the brain, gonadotropic hormones are released.... Read More
Lactotroph
Definition noun, plural: lactotrophs An acidophilic cell in the anterior pituitary that releases prolactin Supplement The... Read More
Spermatogenesis
Spermatogenesis Definition Spermatogenesis is the biological process of producing sperm cells. It occurs in the male gonad... Read More
Erythrocyte
Erythrocyte Definition Erythrocytes (red blood cells or RBCs) are the myeloid series of specialized cells that play an... Read More