Term
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Definition
| -male and female reproductive cells |
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Term
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Definition
| -fusion of an ovum and a spermatozoa to form a zygote |
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Term
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Definition
| -cell formed follwing the fusion |
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Term
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Definition
| -reproductive organs that produce gametes and hormones |
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Term
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Definition
-organs located in the pernieum associated with reproductive system
-for male it is scrotum and penis |
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Term
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Definition
| seminal vesicles, prostate gland, and bulbourethral glands |
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Term
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Definition
-cryptorchidism
-testes remain in abdomen and would fail to reproduce sperm |
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Term
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Definition
-deferential artery testicular artery and pampiniform plexus of veins and nerves
-medial end of inguinal ligament
-superfical inguinal ring
-then turns into vas deferens |
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Term
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Definition
| -pulls testes closer to the body to regulate temp. |
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Term
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Definition
| -serous membranes lines scrotal cavity between scrotum and testes |
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Term
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Definition
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Term
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Definition
-800 tubules each one is 31 inchesm highly compacted and coiled
-in between spaces of this are blood vessels called interstital cells of leydig |
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Term
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Definition
-separates the duplicated chromosomes of acell into two identical nuclei. Essential step in cell division
-occurs during somatic cells (body)
-DNA replicate |
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Term
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Definition
-complete compliment of chromosomes or 2N
-divide to produce 2 daughter cells |
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Term
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Definition
--gametes with half the normal body cell chromosome number
-two cycles of cell division (I and II)
-produces four cells
-haploid or N |
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Term
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Definition
-DNA replication has already occurred
-random and independent |
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Term
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Definition
replicated chromosomes in the cells of the first meiotic division are separated.
-at the end result is four cells each containing 23 individual chromosomes |
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Term
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Definition
| -production of sperm cells |
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Term
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Definition
-stem cells undergo cell division and mitosis (it is called diploid 2n)
-but if it undergoes meiosis (primary) and then later secondary during meiosis II (haploid) |
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Term
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Definition
| -results of completion of meiosis II, haploid in N |
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Term
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Definition
-mature spermatid into a spermatozoon (physically mature)
-head neck and tail |
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Term
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Definition
-nurse cells
-large cells scattered within germinal epithelium
-mainteance of blood testis barrier
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Term
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Definition
-binds testosterone to allow fo passage through gernimal epitheloum of semiferous tubule
-produced by intersitial cell of leydig |
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Term
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Definition
-23 feet long coiled up on the surface of testis
-head body tail( vas deferens)
-stores and protects maturation
-takes two weeks for sperm to pass through here
-recycles damanged spermatozoa |
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Term
| Function of fluids that make up semen: |
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Definition
-activation of spermatoza
-providing nutrients for spermatoazoa motility
-help propel spermatozoa along the reproductive tract
-produces buffers to counteract the acidity of urethral and vaginal contents. |
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Term
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Definition
-60% of volume of semen
-sperm become highly moblie
-secretions discharged in ejaculatory duct at emission
-prostate is 20 to 30% of volume of semen
Bulb is 5% neutralizes urinary acids and provides lubration of penis
%5 from secretuions of sertoli cells |
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Term
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Definition
-released by hypothalamus
-function is to control release gonadotropins produced by pituitary gland. |
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Term
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Definition
-peptide hormone targets sertoli cells
-stimulates spermatogensis
-secretes ABP (androgen binding protein)
-inhibin |
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Term
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Definition
-peptide hormone also
-release by anterior piuitarty and targets Leydig within testes |
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