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Male reproductive
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Takes somatic cells and makes two
Mitosis
Reduction and division
Meiosis
Somatic cells have _____ chromozomes
46
Sex cells have _____ chromozomes
23
sex cells are also called _____.
Gametes
Where is sperm made?
Semineferous tubules
What is the male and female sex organ?
Testes
ovaries
What are the 3 main glands that contribute to sperm ejaculate?
Prostate
seminal vesicle
bulbourethral ( cowpers gland )
sperm cells have how many chromozomes?
23
gonads are what type of cells?
Somatic cells
What happens in meiosis I?
Reduction of 46 chromozomes to two 23 chromozomes
What happens in meiosis II?
Dna is duplicated 23 chromozomes is duplicated into two 23 chromozome
What are the 2 layers of the testes?
Tunica albuginea
Tunica vaginalis
After the sperm leave the seminiferous tubules they go into _____.
Rete testes
When the sperm leave the rete testes they go into _____.
Efferent ductules
Germ cells will eventually become _____.
Sex cells
These cell types exist in all different layers of the seminiferous tubules and have 3 different names name all 3
Sustentacular cells
sertoli cells
nurse cells
germ cells eventually become _____.
sex cells
make substance called Inhibin to decrease sperm production.
Sustentacular, sertoli, or nurse cells
Keeps small amount of testosterone available in testes for maintaining spermatogenesis (making sperm)
Androgen binding protein
Assists in making sperm
testosterone
Testosterone secreations is promoted by
Lutenizing hormone
causes leydig cells to produce more testosterone
Lutenizing hormone
androgens and testosterone are made mostly where?
Leydig cells
passageway between scrotum and the abdominal cavity
Inguinal canal
Fibromuscular cord that guides the descent of the testicles through the inguinal canal
Gubernaculum
the testicles descent at what age?
8 months
Blood vessels, vas deferens, nerves, cremaster muscle that travels with testes.
Spermatic cord
the stereocilia microvilli in the epididymis have the ability for what?
absorption
Highly coiled up to 20ft in lenth
epididymis
What are the 3 erectile tissues?
2 corpora cavernosa
1 corpus spongiosum
Fluid+sperm=
Semen
Accessory gland:
Bulk of semen
Seminal vesicle
Accessory gland:
Alkaline secreations to neutralize acidic vagina
Seminal vesicle
Accessory gland:
secreations contain fructose and vitamin C
Seminal vesicle
_____ stimulate muscle contractions both in male and females and are found in the _____ gland.
Prostaglandins
seminal gland
Accessory gland:
Contains fibrinogen that temporarily clots vagina
Seminal vesicle
Accessory gland:
20-30% of semen volume
Prostate gland
Accessory gland:
Secreations of acid phosphate
Prostate gland
Accessory gland:
Rounded, glandular tissue wrapped in smooth muscle
prostate gland
Accessory gland:
secreations of seminaplasmin (antibiotic)
protects against urinary tract infection in males
prostate gland
Accessory gland:
Secretes pre-cum
Bulbourethral glands or cowpers gland
Accessory gland:
Secretes alkaline fluid that neutralizes any urinaryacids in urethra
bulbourethral gland or cowpers gland
The hypothalamus releases _____ hormone to the _____.
Gonadotropin releasing hormone
anterior pituitary gland
The anterior pituitary gland releases these two types of hormones
Follicle stimulating hormone
Lutenizing hormone
The Lutenizing hormone causes the _____ cells to produce _____.
Leydig cells
Testosterone
The Nurse cells or sertoli cells release either _____ or _____.
Inhibin
Spermatogenesis
Author
Floe
ID
149661
Card Set
Male reproductive
Description
Anatomy
Updated
2012-04-24T01:49:10Z
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