Spermatogenesis

Interstitial endocrine cells are also called _____ Cells

Leydig

Anterior to the nucleus head of the sperm is the ______, which contains enzymes necessary for penetration of the egg

acrosome

Spermatids have to much extraneous ______ to function well in a reproductive capacity

cytoplasm

LH stimulates _________ ________ cells to produce testosterone, which acts synergistically with FSH to stimulate sperm production

interstitial endocrine

_________ ________ cells lye external to and between the seminiferous tubules

interstitial endocrine

Anterior to the nucleus head of the sperm is the acrosome, which contains enzymes necessary for _________ of the egg

penetration

FSH is secreted from the ______ ________

posterior pituitary

A __________ __________ undergoes a growth phase before it is ready for meiosis I

primary spermatocyte

Spermatogonium undergoes mitosis to a ______ _____ that is ______

primary spermatocyte, 2n

Each ________ ________ forms two spermatids

secondary spermatocyte

There are two _______ ________ after meiosis I

secondary spermatocytes

Primary spermatocytes under meiosis I to form _________ _________ that are ___

secondary spermatocytes, n

Spermatogenesis occurs in the __________ _________ of the testes

seminiferous tubules

interstitial endocrine cells lye external to and between the _________ ________

seminiferous tubules

LH stimulates interstitial endocrine cells to produce testosterone, which acts synergistically with FSH to stimulate _____ production

sperm

The sustenocytes or sertoli cells nourish the spermatids as they begin their transformation into _____

sperm

Each secondary spermatocyte forms two ________

spermatids

Spermiogenesis converts ________ into functional sperm

spermatids

The sustenocytes or sertoli cells nourish the _______ as they begin their transformation into sperm

spermatids

There are a net four _______ from meiosis II

spermatids

Secondary spermatocytes undergo meiosis II to form ________ that are __

spermatids, n

FSH stimulates mitotic division of spermatogonia to begin ___________

spermatogenesis

Human sperm production is called _____________

spermatogenesis

____________ is the process of gametogenesis in males

spermatogenesis

Before puberty, all divisions of ___________ are mitotic

spermatogonia

The primitive sperm cell is termed the __________

spermatogonia

At puberty, each mitotic division of ___________ produces one spermatogonium and one primary spermatocyte

spermatogonium

At puberty, each mitotic division of spermatogonium produces one _________ and one ________ ________

spermatogonium, primary spermatocyte

Spermatids undergo _______ to form functional sperm that are n

spermiogenesis

The ________ or ______ ______ nourish the spermatids as they begin their transformation into sperm

sustenocytes, sertoli cells

Spermatogenesis occurs in the seminiferous tubules of the ______

testes

LH stimulates interstitial endocrine cells to produce ________, which acts synergistically with FSH to stimulate sperm production

testosterone

Spermatogonium is 2n or n?

2n

_________ to the nucleus head of the ______ is the acrosome, which contains enzymes necessary for penetration of the egg

Anterior, sperm

LH stimulates interstitial endocrine cells to produce testosterone, which acts synergistically with ____ to stimulate sperm production

FSH

_______ undergo spermiogenesis to form functional sperm that are n

Spermatids

_________ have to much extraneous cytoplasm to function well in a reproductive capacity

Spermatids

__________ occurs in the somniferous tubules of the testes

Spermatogenesis

___________ converts to a primary spermatocyte that is 2n

Spermatogonium

___________ converts spermatids into functional sperm

Spermiogenesis

A primary spermatocyte undergoes a growth phase before it is ready for ______

meiosis I

Primary spermatocytes under ________ to form secondary spermatocytes that are n

meiosis I

There are two secondary spermatocytes after _______

meiosis I

Secondary spermatocytes undergo _______ to form spermatids that are n

meiosis II

There are a net four spermatids from _______

meiosis II

The progression of ______ events can be followed form tubule periphery to the lumen

meiotic

Spermatogonium undergoes ______ to a primary spermatocyte that is 2n

mitosis

At puberty, each _______ division of spermatogonium produces one spermatogonium and one primary spermatocyte

mitotic

Before puberty, all divisions of spermatogonia are _______

mitotic

________ ________ cells are also called Leydig Cells

Interstitial endocrine

_____ stimulates interstitial endocrine cells to produce testosterone, which acts synergistically with FSH to stimulate sperm production

LH

_____ _______ under meiosis I to form secondary spermatocytes that are n

Primary spermatocytes

_______ _______ undergo meiosis II to form spermatids that are n

Secondary spermatocytes

interstitial endocrine cells lye _______ to and _____ the seminiferous tubules

external, between

True of false: Spermatids are functional gametes

false (they are not functional)

There are a net ___ spermatids from meiosis II

four

Spermiogenesis converts spermatids into _______ ________

functional sperm

Spermatids undergo spermiogenesis to form _________ ________ that are ___

functional sperm, n

Spermatogenesis is the process of __________ in males

gametogenesis

A primary spermatocyte undergoes a _______ ______ before it is ready for meiosis I

growth phase

The progression of meiotic events can be followed form tubule periphery to the ______

lumen

The progression of meiotic events can be followed form the _______ _______ to the lumen

tubule periphery

Each secondary spermatocyte forms ___ spermatids

two

There are ____ secondary spermatocytes after meiosis I

two