30 results found

Search Results for: testis

Rete testis

Definition noun, plural: rete testes A network of tubules in the hilum of the testicle, and serves as passageway for sperm... Read More

Spermatogenesis

Spermatogenesis Definition Spermatogenesis is the biological process of producing sperm cells. It occurs in the male gonad... Read More

Appendix

Definition noun, plural: appendixes (1) (anatomy) A worm-shaped, vestigial process extending from the lower blind end of... Read More

Convoluted seminiferous tubule

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

Seminiferous tubule

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

Men could go extinct? Y chromosome disappearing slowly

Hold on to your seats, gentlemen -- the male chromosome (Y chromosome) disappearing at a certain rate could absolutely be... Read More

Spermiogenesis

Spermiogenesis Definition Spermiogenesis is the stage of spermatogenesis wherein the spermatids differentiate into mature... Read More

Straight seminiferous tubule

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

Spermatid

Spermatid Definition What are spermatids? Let us define spermatid and understand its role in reproduction. A spermatid... Read More

Sessile hydatid

sessile hydatid --> testicular appendage A vesicular nonpedunculated structure attached to the cephalic pole of the testis;... Read More

Vestigial

Vestigial (organ) is a degenerate organ or structure or physical attribute that has little to no function in the species but... Read More

Sex-determining Region Y gene

Definition noun The gene that codes for the SRY protein, which is associated with the testicular development in many male... Read More

Sertoli cell

Definition noun, plural: Sertoli cells Any of the elongated cells located in the seminiferous tubules of the testis, and... Read More

Vas deferens

vas deferens The excretory duct of the testis that conveys sperm. A duct that carries spermatozoa from the epididymis to the... Read More

Luteinizing hormone

Definition noun, plural: luteinizing hormones A gonadotropin released by the gonadotropes of the anterior pituitary, and,... Read More

Y linkage

Definition noun, plural: Y linkages (genetics) A form of sex linkage involving particularly the Y chromosome Supplement Sex... Read More

Dense regular connective tissue

The dense connective tissue is a type of connective tissue proper that consists predominantly of fibers, especially type I... Read More

Prophase

Prophase is the first stage of mitosis; the very first step in this crucial process of the M-phase of the cell cycle. Now as... Read More

Lateral surface

Lateral surface The surface of a part of the body that faces away from the midline. The na recognises a lateral surface on... Read More

Leydig cell

Leydig cell interstitial cells of the mammalian testis, involved in synthesis of testosterone. leydig cell Leydig cells,... Read More

Smooth endoplasmic reticulum

Smooth Endoplasmic Reticulum Definition Smooth endoplasmic reticulum (sER) is part of or a region in the endoplasmic... Read More

Sugar

Sugar Definition The term sugar is the generic term for any disaccharides and monosaccharides. Sugars are an essential... Read More

Follicle-stimulating hormone

Follicle Stimulating Hormone Definition In the pituitary gland of the brain, gonadotropic hormones are released.... Read More

Fructose

Fructose Definition Fructose is a ketohexose monosaccharide with a chemical formula of C6H12O6. It is the sweetest of all... Read More

Glucose

Glucose occurs naturally and is ubiquitous. It is one of the three most common monosaccharides; the other two are fructose... Read More

Carbohydrate

Carbohydrate Definition A biomolecule refers to any molecule that is produced by living organisms. As such, most of them... Read More

Y chromosome

Y chromosome Definition The Y chromosome constitutes one member of the pair of sex chromosomes within an organism, a common... 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

Alimentary canal

Definition of Alimentary canal What is the alimentary canal? The alimentary canal is a muscular hollow continuous tubular... Read More

Sex Reversal – When Males Grew Ovaries Instead of Testes

Summary: Sex reversal is not unusual in some animals, especially in invertebrates. As for the vertebrates, there are... Read More