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Notas de lectura

Anatomy and Physiology Part 1o

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male and Female reproductive systems, pregnancy, and fetal development

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Reproductive System 1 /Male
Primary vs
Secondary sex organs
primary :
gounds ,
of oval
testes :
pair shaped organs housed in scrotum
↳ exocrine :
produce gamers Esperm cells /Spermatozoa
↳ endocrine :
produce/secrete sex hormones into bloodstream (testosterone
secondary :
make sure
spenm can be transported
effectively to Female reproductive
fast No
,
production
1 Duct series of interconnected tubes
transporting from testes
:
.


system sperm
to exterior

epidizymus ,
was derevens (diktas deferens) , ureturn
2
2
Accessary sexyland produce tuid component
of semen to wourish
:




protect spenm during ejaculation
↳ Seminal resicles , prostate gland bulbounetural crowers's gland ,


3 .
Penis :
external structure delivering sperm contains elective tissue to ,


enable penetration(during arousal

Frimany/secondary
* work together to produce healthy sperm and deliver it

successfully 10 Female reproductive system (to fertilization) *

scrotum : external say that serves as a protective enclosure
1 . Skin : Outermost ,
twin
layer winded hairy sweet glands sensory
, , , , nere endings
.
2 Muscle tissue : dartos (Wall), cremasles (surround cords/tesles)
.
3 Fibrous connective tissue: Structural support thetestes
to separate

Temperative Regulation particully
to contracted
destes must remain
body produce sperm 2-3 c coder than
↑ always
Davis smooth muscle causes wrinkles (Scrota/
:
, Mgae) to regulate temp.
cremaster Skeletal muscle that can contract and
pull testes upward
·




:



responsive to reflex acting , suchas
physical touch , anxiety ,

or exercise craise resies)
·



Pampinitm Pleas :
network of veins that is used in venous drainage and

thermoregulation
↳ removes Do blood Buy testes as arteries deliver drich blood
to tissues

, ↳ countercument
heat exchange allows low arteries testes
by
to be cooler that temp body .
↳ warms venews blood
returning to
body
sweet releases heat when sweet evaporates
glands
:
to to the

temperature of
surrounding tissue


Seminitrous inbule
primary site of majority of testicular
spermatogenesis ,
make
up a
tissule
nutritical/physical support for
with
-

nurse cells , embeded
walls of table , extend from gen cells luntients /signaling
ourer edge to the lumen -


secretionuf
-

P
blood- testis regulatory substances

barrep 미 Androgen-binding
protein/binds
^

right junctions
instosterone)
I protect from ↳ Inhibin
provides
:


immure
system
to negative Feedback
a Loop to
pitnitely
keep
specvalized ร
grand
, regults
hemical FSH indirectly
env .

lunen : hollon

space at center
genuictal 「 oftubule
epituelium \
:


contams gen cells at periobular myoid cHlls : smooth
various stages once natured cellstheat
, musue provides structural
che released to integrity facilitate movement of
they
+



the ruler spe lesticular fluix through
a




mythic contractions
'




cells : Located interstitial space blo tubules , play arole in
Leydig in

endocrine system by producingtestostere
is influenced
by CH centenizing homene)

,spermatogenesis 1
:
biological process in which sperm cells (male
gennetes) are produced
↳ initialed at
in tubules
an life ,
puberty ,
continues


Homonal Regulation
adal
governed by hypothalamic-pituitary you axis
-




stimulares testegienone
{ production
leydig

initiates
sertuli
spermate-
spenn der
-




ABP-inhibin is
-


genesis,
supperits
reproductive
development,
promotes
secondary
canterior] sexual

characteristic
↓ FSH
signals to
:
·

inhibin
↓ C and ↓
·
testosterit :
signals to Guest
↳ must metabolize -
estradiol influent
to
hypothalamus

Events of
Spermatogenesis
development takes Sertoli cells
place in

Primordial Garm cells
originate outside gouads migrate to testes
1 .
:
precurso ,
+


differentiale into

cearliest
stage of speem-poducing cells)
spermatogonia
.
2
Spermatogonia near basement membrane adjocalt to peritubular myoid ceds
:
,


↳ diploid (46 chromosomes) multiply via minosis ,

.
3
Type B Spermatogonium the daughter cells that migrate inward enlarge
: +


to become
primary spermatocytes
4 Merisis 1
diploid primary spermatoye secondary spermatocytes chaploid
: :
.

, 5 Meiosis division into 4 spenyatids connected via
.
2:
secondary spermatole ,



cytoplasmic bridges
molecules
↳ share
regulatory
untrients +
during development
6. spermaties Spermation (matures
Spermogenesis marnation
phase where
: -
>



structural changes :


condensation of nuclear material
-




-formation of accosome : cap-like structure
containing enzymes needed

to help fertilizeegg
the

-

development ofPlagellum Gail) for
motility
shedding excess cytoplasm
-




Spermogenesis : final stage of speratogenesis where immature male gen cells
Esperation) undergo transformations to become mature spermatories
↳ occurs
within sertoli cells /NO Cell Division)
entirely in Seminitacus onbuses
Nuclear condensing chromatin packtightly protect genetic material
:
to


Acwsome formation : autho to nudleds
,
contains hyaluronidage+ accusin to
penetrate
outer layers of the
egg
Flagellum :
posterior, provides mobiling
Cytoplasm shedding : residual bodies are discarded =
smaller , aptimized shape
structure cap wi
spermatorio eneumes
rightly packed DNS w/

poternal into
genetic

parked wh
ペ un




mitochondria to ~
~
Basal Body :
helps initiate

generate ATP ← fail development + contributes to
for tait _
th centescue of eygote
movement
^ Centu
afterfertilization

activity structure mining dean
Δ
entire built us microtubules in atz

provides pattern surrounds 2 Central
propulsion P ↳ made tubulin
of
, whip-like metich
the spen
,
of
composed .
core microtubule structure that
axoneme
helps us motility



Información del documento

Subido en
15 de mayo de 2026
Número de páginas
34
Escrito en
2025/2026
Tipo
Notas de lectura
Profesor(es)
Dr. castro
Contiene
20-25
$3.49

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