Histo. Male Reproduction Flashcards
Male gonad
testes
The male copulatory organ
penis
Testes are suspened in the ___
scrotum
The testes are a ______crine gland
exo-endocrine
_____ represent the exocrine secretion of the testes
spermatozoa
_____ is the endocrine portion of the testes
testosterone
Each testes is covered by a thick fibrous capsule called ___
tenica albuginea
The tunica albuginea thickens posteriorly to form the _____
mediastinum testis
______ divides the testes into multipple lobes
septula testis
septum = divide
Each lobule is occupied by very long twisted tubules called ____
(convoluted) seminiferous tubules
______ covers the whole testis
tunica vaginalis
_____ is where spermatozoa form
(convoluted) seminiferous tubules
Seminiferous tubules have 2 types of cells within it
- supporting cells of sertoli
2. Spermatogenic cells
______ are tall columnar cells that support and nourish the spermatogenic cells
supporting cells of sertoli
spermatogenesis is controled by _____ horm
FSH
- also controls ovulation
_____ are the most immature sperm cell
spermatogonia
Spermatogonia divide by ___
mitosis
Primary spermatocytes divide by _____
meiosis (first maturation division)
________divide by meiosis (second maturation division)
secondary spermatocytes
_____ (sperm) change their shape
spermatids
_____ actually contains the chromosomes (sperm)
spermatozoa
- little baby zoay with the 23 chromosomes
membranous cap of the spermatozoa is called the _____
crosome
acrosome produce the enzyme ____ that helps to penetrate the ovum
hyaluronidase
______: process by which the spermatogonia develop into spermatids
spermatocytogenesis
The metamorphosis of spermatids to spermatozoa is called ___
spermiogenesis
____ cells are groups of cells btw seminiferous tubules
interstitial cells (leidig cells)
_____ cells secrete testosterone under the influence of LH
interstittial cells (leidig cells)
leidig cells secrete testosterone under the influence of what hormone
LH - luteinizing hormone
L.cell – L. hormone
____ are straight tubes at the terminal end of the seminiferous tubules
tubuli rectae
_____ tubules are the first to receive spermatozoa
tubili rectae
____ receive spermatozoa from the tubili rectae
rete testis
squamous & cuboidal
____ receive spermatozoa from the rete testis
ductuli efferentis
columnar & cuboidal
______ is the site of storage for spermatozoa
epididymus
duct of epididymus are lined with pseudostratified epithelium with tall microvilli known as ____
stereocilia
_____ is a muscular continuation of the epididymus
vas deferens
The mucosa of the vas deferens has three muscular layers . Name them
- inner longitudinal
- middle circular
- Outer longitudinal
the duct of the seminal vesicle joins with the vas deferens to form the ______
ejaculatory duct
the ejactulatory duct terminates into the ______
prostatic urethra
The prostatic urethra is ___ epithelium
transitional
The seminal vesicle mucosa is hightly ____
folded
The mucosa of the seminal vesicle are ____ epithelium
pseudostratified non-ciliated
secretions from the _____ represent 60% of semen
seminal vesicle
the seminal vesicle secretes _____
viscid secretion rich in sugar fructose
_____ is the secretory unit of the prostate
prostatic acini
** prostatic acini are lined with _____ epithelium
cuboidal & pseudostratified
____ is the opeing into the prostatic urethra
ducts of acini
prostatic urethra is liked with ____ epithelium
transitional
_____ received the termination of the prostatic duct and ejaculatory duct
prostatic urethra
the prostate secretes ______ secretion rich in _______
milky secretion rich in - citric acid, acid phosphatase, proteolytic enymes
Prostatic secretion represents ____ % of semen
30%
bulbourethral glands (of cowper) secretes _% of semen
5%
__ glands secretions lubricate the mm of the penile urethra
bulbourethral glands (of cowper)
acini in the parenchyma of the bulbourethral glands secrete _____
mucous
The skin makes a fold over the glans penis called the __
prepuce
The 2 paired erectile bodies of the penis
corpora cavernosa
c.c.= 2
The erectile body on the ventral side of the penis is ____
corpora spongiosum
s= single
the corpora cavernosa are connected by a tough fibrous capsule called the ____
tunica albuginea
seminal fluid is about __ml containing about __ spermatozoa
3 mL
300 million spermatozoa