what is the small oval gland about 3.8 cm (1.5 inches) long and 2.5 cm (1 inch) wide
what is shapes like an egg that has been flattened slightly from side to side
what covers the testis and then enters the gland to form the many septa that divide it into sections or lobules
what is in each lobule of the testes, is long and narrow, and has a central lumen or passageway
what forms the bulk of the testicular tissue mass
small endocrine cells lying near the septa in the testes are called
what develop in the walls of the seminiferous tubule and are then released into the lumen and begin their journey to the exterior of the body
The testes prepare for sperm production before puberty by increasing the number of sperm precursor (stem) cells called_________.
these immature cells are located near the outer edge of each seminiferous tubule
before puberty,_________increase in number by the process of mitosis (cell division)
what is the process that divides the parent cell into two daughter cells, each identical to the parent and each containing a complete copy of the genetic material represented in the normal number of 46 chromosomes
what also is called germ cells
follicle stimulating hormone
When a boy enters puberty, circulating levels of _________cause a spermatogonium to undergo a unique type of cell division.
when one of the daughter cells remains as a spermatogonium then the other daughter cell form into a cell called a(n)__________
the primary spermatocytes undergo a type of cell division called_________
this process results in sperm production and thus is also called spermatogenesis
In_________two cells divide and form four daughter cells.
what is the name for the four daughter cells that are formed by the process of meiosis in the male reproductive system
The four__________each have only half the genetic material in its nucleus and half of the nuclear chromosome (23) of other body cells.
what develops into spermatozoa