Search Results for: estrogen
Human Reproduction
Terminology and Concepts Primary reproductive organs are called gonads - testes in the male and ovaries in the female.... Read More
Positive feedback
Positive Feedback Definition Each mechanism of the body like temperature, blood pressure, and levels of specific nutrients... Read More
Follicle-stimulating hormone
Follicle Stimulating Hormone Definition In the pituitary gland of the brain, gonadotropic hormones are released.... Read More
Infradian rhythm
What is the Infradian Rhythm? An infradian rhythm is a type of biological rhythm that lasts longer than 24 hours, with a... Read More
Diaphoresis
What is Diaphoresis? Diaphoresis is referred to excessive or profuse perspiration or sweating which may be due to... Read More
Reproductive system
What is the Reproductive System? The reproductive system of an organism is the biological system made up of all the... Read More
Adipose tissue
Adipose Tissue Definition Adipose tissue, a specialized variety of connective tissue, is composed of lipid-rich cells known... Read More
Sex steroid
Definition noun, plural: sex steroids A steroid hormone that when bound to specific sex hormone receptor becomes active and... Read More
Feedback mechanism
Feedback Mechanism Definition What is a feedback mechanism? A feedback mechanism is a physiological regulation system in a... Read More
Hormone Production
Reviewed by: Mary Anne Clark, Ph.D.Hormones are chemical messengers produced by glands in the endocrine system.... Read More
Physical Development in Humans
The Newly Born Child Depending on the nutrients available to the child within pregnancy and the genetic makeup of the... Read More
Anabolic steroid
Definition noun, plural: anabolic steroids Any of the synthetic steroid hormones (androgens) that promote muscle and bone... Read More
Steroidogenesis
Definition noun, plural: steroidogeneses The biosynthesis of steroid hormones from cholesterol by various cells, such as... Read More
Animal Growth Hormones
Reviewed by: Mary Anne Clark, Ph.D.As mentioned in the previous tutorial, hormones are produced in... Read More
Predisposing factors
All organisms can be born with or develop a disease at any point in their lifetime. When someone is born with a disease, it... Read More
Progesterone
Definition noun, plural: progesterones A progestogen hormone, with a chemical formula of C21H30O2, naturally produced in... Read More
Sexual selection
What is Sexual Selection? The definition of sexual selection is very interesting in biological terms. The sexual selection... Read More
Chemical Composition of the Body
In order to fully understand the mechanisms of human physiology, it is important to have an understanding of the chemical... Read More
Lactotroph
Definition noun, plural: lactotrophs An acidophilic cell in the anterior pituitary that releases prolactin Supplement The... Read More
Progestogen
Definition noun, plural: progestogens A steroid hormone that is activated by the binding to the progesterone receptor, and... Read More
Catabolism
Catabolism Definition Catabolism is the branch of the metabolic process that breaks down complex, big molecules into... Read More
Luteinizing hormone
Definition noun, plural: luteinizing hormones A gonadotropin released by the gonadotropes of the anterior pituitary, and,... Read More
Steroid hormone
Definition noun, plural: steroid hormones A type of steroid that acts as a hormone, and that which is exemplified by sex... 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
Linea nigra
Definition noun (1) A long narrow dark streak running along the midline of the abdomen, from the umbilicus to the pubis (2) ... Read More
Sex hormone
Definition noun A hormone that is secreted by gonads and is involved in the regulation of sexual functions, such as the... Read More
Prolactin-releasing hormone
Definition noun, plural: prolactin-releasing hormones A polypeptide hormone originating in the hypothalamus, and whose... Read More
Spermiogenesis
Spermiogenesis Definition Spermiogenesis is the stage of spermatogenesis wherein the spermatids differentiate into mature... Read More
Spermatogenesis
Spermatogenesis Definition Spermatogenesis is the biological process of producing sperm cells. It occurs in the male gonad... Read More