Sperm cell production

The major FSH target in the male is the Sertoli cells, found in the walls of the seminiferous tubules of the testis. They function to anchor and nourish the spermatids, which subsequently are transformed into spermatozoa during the process of spermatogenesis. Sertoli cells also produce inhibin (discussed later), which functions as a negative feedback regulator of FSH. The major physiological effect of FSH in the male is thus sperm cell production. 

Peltola, S., Niessen, L., Nielsen, K. F., Jarvis, B. B., Andersen, B., Salldnoja-Salonen, M., and Moller, E. M. (2002). Toxigenic diversity of two different RAPD groups of Stachybotrys chartarum isolates analyzed by potetial for trichothecene production and for boar sperm cell motility inhibition. Can. J. Microbiol. 48, 1017-1029. 

Haploids can be produced from tetraploid cultivars and breeding clones via parthenogenesis (Hougas and Peloquin, 1957). When a tetraploid is crossed with any of several selected diploid clones, some of the offspring are diploid. In these crosses, both sperm cells from the pollinator enter the central cell, allowing normal endosperm to develop. This stimulates the division of the egg cell in the absence of fertilization, resulting in the production of a haploid (2x) embryo... 

Slowing of red blood cell production, lower sperm production... 

Slowing of red blood cell production, lower sperm production Anemia, colic, seizure, brain damage, decreased longevity Convulsions, permanent brain damage, death... 

Mesozoans are all tiny organisms that have a very simple structure the body wall consists of a thin outer membrane that is dotted with large numbers of small cilia. When they beat, they provide a means of locomotion through the host animaTs body fluids. The vast bulk of the mesozoan body consists of egg and sperm cells. There are no specialized feeding organs, and nutrients and waste products pass directly across the cell wall. 

Chromosome anomalies and aberrations can influence heredity. Most somatic cells of humans contain 23 pairs of chromosomes, with one member of each pair contributed by the sperm and the other contributed by the egg. When the process of sperm or egg cell production goes awry as a result of radiation damage, abnormal chromosome numbers (aneuploidy) can arise. Aneuploidy is a form of genetic instability. 

Luteinizing hormonea hormone produced by the pituitary that in women stimulates the follicle to release a ripened ovum in men, LH stimulates the production of testosterone and sperm cells. 

A second effect results from inhalation. For example, petrolenm prodncts are simple narcotics toluene affects blood cell production (the effect can be reversed), and also lowers sperm connt chlorinated hydrocarbons can cause liver and kidney damage and disturbance of heart rhythm which is sometimes fatal. 

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