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1

with what does the scrotum stay connected to the abdomen and helps testes descend into the scrotum

inguinal canals

2

scrotum equivalent in females

labia majora

3

What carries blood vessels, nerves, lymphatics and vas deferens inside inguinal canal

spermatic cords

4

muscles help in the positioning of testes

cremaster and dartos
Dartos- contracts and causes wrinkling of scrotal skin
Cremaster- Contracts and pulls scrotum towards abdomen

5

condition where testes fail to descend

cryptorchidism

6

3 protective coverings of the testes

tunica vaginalis(double layer),tunica albuginea(white fibrous which divides the testes into lobules),tunica vasculosa(connective tissues and capillaries)

7

no. of testicular lobules

250 each

8

what do each lobule contain

seminiferous tubules

9

job of the seminiferous tubules

produce sperms

10

lining of rete testes

cuboidal epithelium

11

flow of sperm

seminiferous tubule, tubuli recti,rete testis,ductuli efferentes, ductus epididymus,sperm duct, ejaculatory duct,urethra,penis

12

what cells are the STRATIFIED EPITHELIUM of the seminiferous tubules made of

1. sertoli cells(nurse cells)
2.spermatogenic cells
3. leydig cells(interstitial cells)

13

what do sertoli cells do



p.s,they absorbs parts shed by the developing spermtozoa

they are supporting cells which help in nursing,derived from the sex cords, they release the glycoprotein hormone inhibin which is a negative feedback response to FSH. they are elongated and pyramidal.

14

what produces spermatozoa

spermatogenic cells, b/w lamina and lumen

15

what do polyhedral Leydig cells do

they produce testosterone controling spermatogenesis.

16

tissue of vas efferentia

ciliated columner epithelium

17

parts and function of epididymis

caput(coiled cap),cauda,corpus

they store and mature sperms 2 weeks to 2 months(cauda).

18

where does the sperm duct originate from

cauda epididymis

19

what is the tip of the penis

the glans penis and covered by foreskin

20

what is the penis made up of

erectile tissues and spongy tissues

3 cylindrical cords which, two are parallel called corpora cavernosa which become superior posterior when the penis is erect and corpora urethrae which is inferior anterior

21

secretion of tysons gland( skin of penis neck)

smegma white sebaceous

22

age for sperm production and growth of penis

11 to 15

23

position of the male accessory glands

1.seminal vesicles:they are paired,tubular and below the urinary bladder. attached to the ejaculatory duct

2.prostate gland:single large bilobed spongy donut shaped gland below the urinary bladder surrounding the urethra

3. cowpers/ bulbourethral glands: pea sized paired inferior to the prostate and empty into the urethra

24

funtions of male accessory glands

1.seminal vesicles: fructose,citrate,prostglandins, alkaline fluid gives mobility and viability to sperms(60%)
2.prostate:slightly acidic milky fluid which contains calcium to nourish the sperms and removal of this gland causes sterlity in males.it is for activating the sperms, anti coagulent(30%)
3.cowpers:lubricating the penis(v less)

25

pH of semen

7.5

26

life span of a sperm

24 to 48 hours after ejaculate

27

sperm count in normal males

15 million per ml ,2-3ml per ejaculation
120 million produced everyday

28

what is the ovary attached to in the abdomen

mesovarium ligament

29

what covers the ovary

germinal epithelium(cuboidal)

30

what is the germinal epithelium divided into

mesothelium and peritoneum