Reproductive System

Question 1

Why are testes located outside of the body cavity

Answer 1

they require lower-than-average- body temperature for sperm development

Question 2

What is an exocrine gland

Answer 2

located in testes

sperm cells are secreted from here

Question 3

what is an endocrine gland

Answer 3

where testosterone is secreted

Question 4

Three main functions of testosterone

Answer 4

1. sex organ development/maintenance
2. sperm cell development/maturation
3. secondary sex chRACTERISTICS

Question 5

what is the epididymas

Answer 5

• site of sperm cell maturation (1-3 days)

- Assembles sperm (head/body/tail)

Question 6

What is the ducts deferens

Answer 6

sperm from epididymas through abdominal cavity, receives secretions from sex glands to add sperm

Question 7

What is the ejactulatory duct

Answer 7

the joining of ducts deferens and seminal vessicle

the end is at urethra within prostate gland.

Question 8

What is the seminal vessicle

Answer 8

• 60% of semen is from here
• empties into ejactulatory duct
• contains fibrinogen
• Is alkaline
• secretes prostaglandin
• contains fructose

Question 9

Why does the seminal vessicle secrete alkaline substances

Answer 9

to neutralize ph of female vagina

Question 10

what is prostaglandin

Answer 10

substance that stimulates small vaginal and uterine contractions

Question 11

why does the seminal vessicle secrete fructose

Answer 11

for an energy source for sperm

Question 12

Describe Prostate gland

Answer 12

• secretes 30% of semen
• thin,milky secretion
• high in ph to buffer
• contains clotting factors and fibrinogen

Question 13

what male sex glands secretes clotting factors and fibrinogen

Answer 13

seminal vessicle, prostate gland

Question 14

how much of semen comes from seminal vessicle

=

Answer 14

60%

Question 15

how much of semen comes from prostate gland

Answer 15

30%

Question 16

Describe cowpers gland

Answer 16

5% of semen

• alkaline mucous secretion- happens just before ejaculation
• helps neutrlize acidic urine in urethra

Question 17

When does the cowpers gland release

Answer 17

just before ejaculation

Question 18

why does the cowpers gland release just before ejaculation

Answer 18

it helps neutralize the acidic urine in the male urethra

Question 19

describe urethra

Answer 19

extend from urinary bladder to distal end of penis

passageway for urine and male reproductive fluids

Question 20

function of teh three layers in the penis

Answer 20

engages with blood for extension and easier injection of semen into vagina

Question 21

what is spermatogenisis

Answer 21

meiosis occurs to create haploid sperm in seminiferous tubules when FSH is released from anterior pituitary

Question 22

At puberty, what is secreted from hypothalamus

Answer 22

GnRH

Question 23

function of GnRH

Answer 23

increases LH and FSH release which promotes sperm formation and large ammounts of testosterone secretion

Question 24

what is the function of fsh

Answer 24

premote sperm formation

Question 25

function of lh

Answer 25

prmote interstitial cells to produce large amounts of testosterone

Question 26

what is onogenisis

Answer 26

maturation of the oocyte

Question 27

where does onogenisis occur

Answer 27

in immature folicle of ovaary to produce hapliod oocyte

Question 28

what is the ovarian cycle

Answer 28

egg cell development

Question 29

what is ovulation

Answer 29

release of secondary oocyte from folicle of ovary