H-Y antigen
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  H-Y antigen

H-Y antigen

    Y-chromosome-induced histocompatibility antigen. It is believed to adhere to the surface of all male mammalian cells, including the Y-bearing sperm of fertilization. In the course of normal embryogenesis, it is held responsible for programming the cells of the undifferentiated gonadal anlage into a testis.


Literally, the ability of tissues to get along; in immunology, it means identity in all transplantation antigens. These antigens, in turn, are collectively referred to as histocompatibility antigens.

A substance which, when present in animal tissue, stimulates the production of antibodies

A sperm cell, or spermatozoon (pl. spermatozoa) (in Greek: sperm = semen and zoon = alive), is the haploid cell that is the male gamete. It is carried in fluid called semen, and is capable of fertilising an egg cell to form a zygote. A zygote can grow into a new organism, such as a human. Sperm cells contain half of the genetic information needed to create life. Generally, the sex of the offspring is determined by the sperm, through the chromosomal pair "XX" (for a female) or "XY" (for a male).

The combining of the genetic material carried by sperm and egg to create an embryo. Normally occurs inside the fallopian tube (in vivo) but may also occur in a petri dish (in vitro).

Not having developed into a specialized cell or tissue type.

"1. In biology, whatever precedes something else. 2. In embryology, a precursor or forerunner or a more mature structure. For example, the stomach anlage. 3. In psychoanalysis, a predisposition to a given trait or personality characteristic. Borrowed directly from the German for a plan or arrangement, derived from the verb anlegen meaning ""to lay on"" in the sense of ""to prepare or set up."" The plural is anlagen. Sometimes anlage is used interchangeably with primordium."

(plural testes). A male's testes are located in a pouch that hangs suspended outside his body. The testes produce testosterone and sperm.



To change or shape by means of a hormone the outcome of development, for example as masculine or feminine, as manifested somatically or behaviorally.

Hormonal changes that take place in synchrony with changes in other processes manifested within or by a living organism, and that are presumed to have a governing or determining effect.

One of the variable components of sadomasochism.

Huntington's chorea
A chronic and progressive disease of the central nervous system characterized by irregular body movements, disturbance of speech, and gradually increasing mental deterioration. It is hereditary in origin and is transmitted as a genetic dominant.

A person who works with energy and persistence, especially in marketing. As applied to sex, it is a vernacular term especially for males who earn money by servicing women or other men of a more effeminate disposition than their own.

H-Y antigen

The mixing of two varieties, races, species, types or sub-types by cross breeding.

A paraphilia of the marauding/predatory type in which sexuoerotic arousal and facilitation and attainment of orgasm are responsive to and [dependent upon] {contingent on} being with a partner known to have committed an outrage or crime, such as rape, murder, or armed robbery [from Greek, hybridzein, to commit an outrage against someone + -philia]. The partner may have served a prison sentence as a convicted criminal, or may be instigated by the hybristophile to commit a crime and so be convicted and sent to prison.

The phenomenon of having an inordinate number of orgasms within a given period, as compared with a given criterion standard.

Excessive secretion of parathyroid hormone from the parathyroid glands, which are situated alongside the thyroid gland in the throat, and which play a role in regulating the amount of calcium in blood and body tissues.

A condition or syndrome, variable in etiology and diagnosis, of being sexuoerotically above standard or inordinate, particularly with respect to some aspect of genital functioning prior to and at the acceptive phase. The condition of being supranormal in sexual and genital responsiveness or frequency.

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