28 results found

Search Results for: semen

Semen

Definition noun The slimy whitish fluid comprised of sperm cells and secretions from the sexual glands released at orgasm... Read More

Ejaculation

Definition noun (biology) The act of ejecting or expulsion, as of the expulsion of semen from the male genital tract in... Read More

External urethral sphincter

Definition noun The urethral sphincter associated with the discharge of urine in both males and females, and where semen is... Read More

Insemination

The act of sowing (of seeds in the ground or, figuratively, of germs in the body or ideas in the mind, etc.).The... Read More

External urethral orifice

Definition noun The meatus of the urethra where urine is excreted in both males and females, and where semen is ejected in... Read More

Gamete

Definition of Gamete What is a gamete? A gamete is the mature reproductive or sex cell that contains a haploid number of... Read More

Urethra

Definition noun, plural: urethrae or urethras (anatomy) The tube extending from the urinary bladder to the urinary meatus,... Read More

Polyspermia

Definition noun (1) Secretion of semen in profuse amount. (2) Polyspermy. Supplement In some references, polyspermia also... 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

Human

Human Definition A human is a bipedal hominin characterized by having a higher and vertical forehead compared with earlier... Read More

Human Reproduction

Terminology and Concepts Primary reproductive organs are called gonads - testes in the male and ovaries in the female.... Read More

Internal urethral sphincter

Definition noun The urethral sphincter made up of smooth muscle cells found at the inferior end of the urinary bladder and... Read More

Body fluid

Body Fluids Definition What is body fluid? Literally, body fluid is the fluid of the body. The adult human body is ~50-60%... Read More

Seminiferous tubule

Definition noun, plural: seminiferous tubules Any of the tubules in the testes through which spermatozoa are produced and... Read More

External os

Definition noun A small, somewhat circular aperture on the extremity of the extocervix Supplement At the lower part of the... Read More

Internal os

Definition noun The part of the cervical canal, forming an internal narrowing of the uterine cavity Supplement The cervix... Read More

Aspermia

Definition noun The absence of any ejaculate or semen. Supplement One of its causes is retrograde ejaculation by excessive... Read More

Substance

Substance Definition What is a substance? The word substance finds varied usages in different science fields. In general... Read More

Zoospermia

zoospermia The presence of live spermatozoa in the ejaculated semen. Origin: G. Zoon, living, - sperma, seed, -... Read More

Spermaturia

spermaturia --> semenuria (Science: urology) The excretion of urine containing semen. Synonym: seminuria,... Read More

Convoluted seminiferous tubule

Definition noun, plural: convoluted seminiferous tubules Any of the convoluted or curved canals of the seminiferous tubules... Read More

Glans penis

Definition noun, plural: glans penises (anatomy) The conical expansion of the corpus spongiosum that forms the head of the... Read More

Cytology

The biological world is so diverse that studying it under a single umbrella as a subject is next to impossible. Hence,... Read More

Prostaglandin

Definition noun, plural: prostaglandins A group of eicosanoids, structurally characterized as 20-carbon unsaturated fatty... Read More

Straight seminiferous tubule

Definition noun, plural: straight seminiferous tubules Any of the short, straight canals of the seminiferous tubules that... Read More

Sexual reproduction

Sexual reproduction is a mode of reproduction involving the fusion of haploid female gamete (egg cell) and haploid male... Read More

Aristotle

Aristotle --> aristotle, Asclepliad of Stagira (Science: person) The son of a physician and old Asclepiad family was born... Read More

Human Reproduction and Fertilization

For the human species to continue surviving, it is essential that mature adults are capable of producing fertile offspring... Read More