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ZOOLOGY > Human Reproduction > Flashcards

Human Reproduction Flashcards

(47 cards)

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1
Q

insemination

A

transfer of sperm into female genital track

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2
Q

Impalntation

A

development of blastocyst and its attachment to uterine walls

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3
Q

gestation

A

embryonic development

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4
Q

parturition

A

delivery of the baby

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5
Q

order of sexual reproduction

A 
gametogenesis
insemination
fertilization
implantation
gestation
parturition
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6
Q

scrotum is connected to what by what

A

scrotum is connected to abdominal/pelvic cavity by Inguinal canal

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7
Q

supermatic chord

A

supermatic artery + veins + nerves + connective tissue

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8
Q

testis overview

IMPORTANT

A

length 4 to 5 cm
width 2 to 3 cm
3 layers: Tunica vaginalis, Tunica albuginea, Tunica vascula
250 components,testicular lobules
each lobule has 1 to 3 semiferous tubules, where sperms are produced
2 types: male germ, sertoli cell
male germ: meitotic div and gives sperm
sertoli cells: nutritions
Interstitial spaces, outside of semiferous tubulrs has small blood vessels and Interstitial cell/LEYDIG cells
Ledig produces Androgen hormones

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9
Q

sperms are produced in

A

seminiferous tubules

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10
Q

2 function of testis

A

production of sperm, male sex organ

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11
Q

3 layers of testis

A

Tunica vaginalis, Tunica albuginea, Tunica vascula

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12
Q

male accessory ducts

A

rete testis, vasa efferentia, epididymis, vas deferens

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13
Q

external opening in penis

A

urethral meatus

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14
Q

flow of male sperm from seminiferous tubules

A

semineferous tubules gives rise to vasa efferinta thru rete testis, which gives rise to epididymis( present in posterior testis)to vas deferens which ascends to abdominal cavity and loops over urinary bladder
It reseives a duct from seminal vesical which forms ejaculatory duct

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15
Q

epididymis differentiates into and uses

A

10-12 vas efferentia
Caput , Corpus, Cauda
stores sperm and secretes fluid to nourish them

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16
Q

Penis

A

both reproductive organ and urinary duct
Has 3 cylindrical masses of erectile tissue: 2 dorsal corpora cavernosa and 1 ventral Corpus spongiosm
surrounded by fibrous tissue
corpus spongila has penile urethra
gland penis has loose fold of skin,Foreskin or PREPUCE

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17
Q

seminal vesicle

A

ducts from here join VD to form ejaculatory
60-70% of semen
7.4 alkaline nutrelizes actdity of utreus
has FRUSTOSE( energy for sperm)
PROSTOGLANDIS (stimulate contractions so sperm e=reach oviduct)
CLOTTING PROTIENS (Coagulation of semen after ejaculation)

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18
Q

prostate gland

A

large, chestnut, surrounds urethra
20-30% semen
produces alkaline milky fluid
Citric acid enzyme

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19
Q

bilbourenthral gland

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A

aka cowpers gland
paired pea sized
mucus, alkaline fluid

20
Q

semen

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A 
colection of secretio from accessory gland and sperm
200-300  million
7.35 to 7.50[PH?] 
60% good shape
40% motile
21
Q

cryptochidism

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A

failure of testicles to desend into scrotum

22
Q

Sertoli cell aka

Study These Flashcards
A

Nurse cell

Sustentacular cell

23
Q

Sertoli 5 funct

Study These Flashcards
A 
Nourishment to spermatozoa
Regulates spermatogenesis by INHIBIN (checks FSH over activity)
Absorbs shred part of spermatozoa
Produces AMF prevent Dev of oviduct
Releases androgen binding protein
Forms Blood-testis barrier
24
Q

Seminal plasma

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A

Prostate + seminal vesicles + Cowper’s gland

25
impotent
inability to penis eretile | med: VGR50
26
Inflammation of prostate
Prostatitis
27
on which day of normal mestrual cycle of 28 days does ovulation occur in a human female
14th days
28
testosteron is produced by
LH stimulating interstitial cells to release testosteroe
29
gonadotropin hormon e GmRH released by and stimulates
by hypothalamus stimulates pitutary gland to give LH And FHS
30
first cell to become haploid in spermatogenisis
secondary spermocyta | till primary spermatocyta its 2n
31
ingunal hernia
intestinal untrution
32
hydrocele
enlargment of testes due to liquid
33
male urethra parts
prostatic, membranous, spongy (penile)
34
cremaster muscles forms what | and its role
cremaster muscle and connective tissue form spermatic cord and surrounds all the strucuture passing thru inguinal cannal. crematic muscle and dortos muscle present in scortal sac helps in the possitionaing of testes when out temp is low, the contract and move closer to testes, vv
35
gubernaculum
a fibrous wall from testes to scortal wall it pulls the testes through the abdomen, as it first grows then sinks
36
in certain mamals testes lies IN the abdomen but stil dosent cause defect, eg
eg: aquatic mamals. Prototherians/egg laying mamals like Ornithorhynchus (platypus), elephant
37
mullarian duct aka and uses
paramesonephric ducts are paired ducts of embryo in female they form fallopian tube, uterus, cervix. in male they degenerate made of mesodermal tissue
38
wolffian duct aka
archinephric duct, leydig duct, mesonephric duct, nephric duct
39
wolffian boy
Is a paired organ found during embryognesis | it connects primitive kidney to cloaca(opening of urinary track) it dev into trigone of urinary baldder
40
neck of the penis
tysons gland/preputial gland is present, it secretes a white substance called smegma, microbial infection here cause inirritation due to inflamation
41
Human sperm was first seen by
Hamm and leeuwenhoek
42
in ascaris sperms
non flagellated amoeboid sperms
43
speed of sperm
1.5 to 3 mm/min within 30 min
44
spirmation
spermatozoa are released from sertoli into cavity of semiferous tubules
45
FREE PASS
:) | Cause why not?
46
female reproductive system consist of
``` ovaries oviduct uterus cervix vagina external geitalia mammary gland ```
47
ovaries | full
almond shape produces ova and female sex hormones, estrogen, progestrone 2-4 cm length,1.5 width, 1cm thick connected to pelvic wall by ligaments attached to lower abdominal cavitybthrough mesovarian within the folds of peritonium called broad liagment structure:

ZOOLOGY (5 decks)

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