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