What initiates Spermatogenesis Video Lecture - NEET

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another question is I'm going right at
this process of spermatogenesis
it starts at puberty now what special
happens at puberty that the
spermatogenesis starts now when it was
not there since birth outcomes I
thinking some changes happen at
everybody
that this process got initiated so let
us see what special happens here now
increase secretion of gonadotropic
releasing hormone then you remember we
discussed with them about quite a few
more words in the chemical coordination
lesson of task 11 so we will make use of
that knowledge of hormones so we know
that from the hypothalamus in the brain
electron glands once this red curve
gland which is the hypothalamus which
acts as a link between the nervous
system and the endocrine system and we
have another gland which is also called
the master gland or picture click and
located just below the hypothalamus now
the body synchronization is such that
pituitary gland controls the secretion
of hormones from all other glands of the
body and hypothalamus in turn controls
the pituitary so that is how it is
organized inside our body now what
happens is at puberty the secretion of
gonadotropic releasing hormone from the
hypothalamus increases now when this
hormone this is often known as G and Rh
so that this releasing hormone is
secreted from the hypothalamus what
happens it actually stimulates the
pituitary to secrete these hormones that
is LH and FSH what is age it is lymph in
izing hormone we have discussed about
all these 102 class length so if you
want to just have a quick recap going
there and FSH is follicle stimulating
hormone now due to the release of the
gonadotropin-releasing hormone from the
calibers it sends a signal to the
pituitary these NH and FSH and one of
these hormones too so let's have a quick
look see this is how they have connected
so this is hypothalamus and this is the
to take this this sign is anterior
pituitary and this side is posterior
pituitary we have this close to other
things now what happens is when when I
don't drop anything what is it created
from the hypothalamus it sends a signal
to the anterior pituitary which
stimulates the secretion of LH and FSH
from a mere patootie now once LH and FSH
are simply there where do they act they
act on which part of the body or on
which cells of the morning now the LH
hormone of the utilizing hormone acts on
the living cells now water lading cells
the cells which are present inside the
testers in the interstitial spaces right
so the living cells are the interstitial
cells and the FSH hormone acts on the
sertoli cells you remember so Allah says
these are Dolly cells also form the
inner lining of the seminiferous tubules
they provide nourishment to the male
germ cells which actually produce forms
so we talked about these two cells now
one of these hormones that is LH axon is
rating cells and FSH axon sertoli sense
so what happens due to that okay so this
is where we are so this is these are the
seminiferous tubules and inside the
inner lining of Senecas to use we have
the sertoli cells and where we have the
latex s we have them in the interstitial
spaces so there we have the linking
cells right now we have also learned
what will they do so what will happen
with these organs act on these cells let
us have a quick look again so now the
living cells are responsible for
synthesis and secretion of androgens
so when this hormone acts on the it
excels a lot of anger region will get
produced because this hormone will
stimulate the synthesis and production
of androgens and want to add water and
proteins and regions they control the
sexual behavior on the secondary sexual
and the male sexual accessory ducts and
glands so it controls all of that so
basically it controls the functioning of
the male reproductive system so more and
more language instead produced that is
testosterone get produced so what
happens the secondary sexual hang-ups
are observed in brain at puberty
similarly what happens to the circle
this in turn stimulates the process of
spermatogenesis because all the
reproductive parts tend to become more
active so spermatogenesis is stimulated
so when this hormone is secreted
spermatogenesis is stimulated now in a
very similar way what happens with the
FSH action sir no he says it stimulates
the process of spermatogenesis
what does Fermi ordinances just in the
previous slide and QWERTY write the
transformation of spermatids into spawns
so that happens in the sertoli setbacks
transformation requires some input from
the sertoli cells so when these hormones
act on the sertoli cells this process is
also stimulated so spiral are janessa
spermatogenesis want they start taking
place at puberty so now let us quickly
have a look at where these cells are
actually located so let us quickly look
at the cross-section of them say meaning
esteem
so in this noggin if arrows tip you will
you can actually see so you can actually
see the main germ cells now as I said
that in a noggin of us Emily festival is
formed by two types of cells one is the
sertoli cells and the other one is down
male job cell so subtle reasons you can
see some lonely rock ourselves here
you see his on the startling sets where
is the other sense which you see they
are a million children cells or
spermatogonia whatever you polish so
these are the two cells which form the
inner lining of the 70 fellows Tibbals
now from these main germ cells primary
spermatocytes are formed so these cells
which are formed here they ascribe is a
phagocyte again from the primary
spermatocytes
secondary spermatocytes are formed so
these are secondary spread by oocyte and
from the secondary spermatocytes
but my dreams are form so here using dot
length structures so they are the sperm
angles
i'm from the sperm and it's spawns are
formed so you can see these are the
spawns so you see that actually the
cells which produce ponds they are
located on the belt very and find these
forms are formed with the human so this
is how sperms are from inside this tube
you know where are the leading cells
located letting cells are located in the
interstitial spaces somewhere here these
cells which we see in the interstitial
places this tissue spaces are the
leading sets thank you please visit
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