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Flashcards in Sex Deck (73)
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1

What is SRY

Sex region of the Y chromosome. Codes for anti mullerian hormone

2

Mullerian ducts give rise to what

Uterus, fallopian tubes, cervix

3

Wolffian ducts give rise to what

Epididymis, vas deferens, seminal vesicles

4

What determines if you are a male

Sry, not y chromosome itself

5

External tissue starts out as what

Homologous tissue

6

Labia minors is what on penis

Shaft

7

Head of penis is what on female

Clitoris

8

Labia majora is what on male

Scrotum

9

Paramesonephric and mesonephric suggest what

Tissue starts out next to kidney, where ovaries and testes start before descent

10

Auxiliary organs to what in male tract, what they are

Contribute to seminal fluid but semen doesnt go through them

Prostate, seminal vesicle, bulbourethral gland/calpert

11

Sperm produced where

Where they are brought to

Seminiferous tubule

Rete testis

12

Sperm maturation occurs where

Ductus efferentes to ductus epididymis

13

What lines testes, what is in between them

Seminiferous tubules (sertoli cells and spermatagonia)

Interstitial leydig cells

14

Intratesticular ducts

3 parts

Within what

Rete testes and ductuli efferentes and Tubuli recti

Testes

15

Excretory ducts
3

Where they are considered

Ductus epididymis
Vas deferens urethera

Outside of testes

16

What is in between seminiferous tubules, what they have, role

Leydig cells
White fat where testosterone made from (uses cholesterol from fat)

17

Role of myoid cells in seminiferous tubule

Move sperm along

18

Sertoli cell role

Maturation of germ cells to become sperm, have growth factors

19

Spermatagonia role

Germ cell, gives rise to sperm cells

20

Testes do not have what occurring inside

B or T cells, immune privileged

21

How many chromosomes sperm and egg have

23

22

How many chromosomes in spermatagonia

46

23

Role of tight junctions in spermatocytes

Keep b and t cells out

24

Sperm cells have how many chromosomes

23

25

Progression of germ cell

Primordial germ cell
Spermatagonia
Division, mitosis
Primary spermatocyte
Meiotic division I
Secondary spermatocytes
Meiotic division II
Spermatids
Differentiation
Mature sperm

26

When males get mature sperm

Puberty, spermatagonia proliferate by mitosis. Begin meiosis to become primary spermatocytes and continue through meiotic division I to become secondary. Then division II, spermatids, then spermatozoa mature form

27

When mixture of chromosomes occurs

Prophase I separation of homologous pairs, then first meiotic division

28

Have chromosome I genes from who

Some from mom and some from dad. How we get genes from all 4 grandparents

29

Structure of sperm

Packed dna in acrosome head, then mitochondria for power, then principle and end piece in tail

30

How sperm get fiel

Glut 5 transporter, gets fructose in from seminal fluid outside of sperm