BIO 224A MALE REPO NOTES

Question 1

Internal organs

Answer 1

testes
epididymdes
ductus deferens
ejaculatory duct
urethra

Question 2

External organs

Answer 2

penis
scrotum

Question 3

Vas deferens function

Answer 3

( 2 one for each side)
- Extends along inside spematic chord than enter pelvic cavity via INGUINAL CANAL
- Each deferens joins the duct of SEMINAL VESSILE to yield ejaculatory duct

Question 3

Ejaculatory duct pases through

Answer 3

prostate gland and empty into urethra

Question 4

During ejaculation

Answer 4

propel sperm through ductus and ejac. ducts

Question 5

Urethra

Answer 5

both urine and semen, separates in 3 regions
1. prostatic urethra
2. membranous uretha
3. penile/spongy urethra

Question 6

Prostatic urethra

Answer 6

with prostate gland

Question 7

membranous urethra

Answer 7

with bulb gland

Question 8

penile/spongy urthra

Answer 8

corpus spong

Question 9

exit to external urethal orfice or

Answer 9

urtheal meatus

Question 10

Testes

Answer 10

• male gonads

Question 11

Function of testes

Answer 11

scortal muscle relax or contract testes forward or away from body to maintain IDEAL TESTES TEMP FOR PROPER SPERM PRODUCTION

Question 12

Spermatogenic cell

Answer 12

produce sperm cell

Question 13

interstital cells

Answer 13

secrete androgens primarly testosterone

Question 14

sustentacular cells

Answer 14

maintain blood-testes barrier
secrete inhibitin

Question 15

Erection function

Answer 15

enlargement and stiffining of penis due to engorment of ERECTILE TISSUE

Question 16

Erection erectile tissue

Answer 16

1. arousal ( Touch, thought, smell)
2. Parasympathetic
   3.Release of NITRIC OXIDE( stimi dialation of arteroles, penile vein compressed)
3. ERECTILE TISSUE fill w/blood
4. penile enlargemnt and rigidity

Question 17

Parasymp stimi

Answer 17

nitric oxide and lube in galns penis ( cum)

Question 18

erection structure

Answer 18

Penis engoremnet, relax vascular SM, more blood, corpus spong not as rigid

Question 19

Erectile dysfunction

Answer 19

Risk factor
Smoking, bad diet, diabetes, ( all things with blood) and trauma
Meds: PDE5 Inhibitos

Question 20

Semen composition

Answer 20

Sperm, fuctose, clotting and anticouag.

Question 21

Sperm function

Answer 21

Fluid expelled during orgasm, liquid transp for sperm

Question 22

Semen secretion

Answer 22

epidydimis, smeinal ves, prostat and blub galnd
10% sperm and 60% seminal fluid

Question 23

Male gamete

Answer 23

sperm

Question 24

Male gamete mature cell structure

Answer 24

sperm - Acrosome ( contain diges. that help sperm penetrate eggs) - head( contain 23 chromo) - midpiece ( contain mito to produce ATP) -flagellum ( Long tail to propell and swim)

Question 25

Sperm site of production

Answer 25

testes

Question 26

Hormones

Answer 26

testosterone other; Inhibin, LH, FSH

Question 27

Testosterone

Answer 27

- Responsible for masculinaty of embryonic fetus

Question 28

LH( Interstitial cell)

Answer 28

-testosterone - between sminiferous tube in testes

Question 29

FSH ( sus cells)

Answer 29

Structure and nourish for developing sperm - SECRETE ANDROGEN-BINDING PROTIEN

Question 30

Inhibin hormone

Answer 30

if sperm too high, SUSTENTACULAR will secrete INHBIN