Male Reproductive System

Question 1

Testes

Answer 1

Produce spermatozoa

Question 2

Epididymis

Answer 2

Store, mature spermatozoa, and send to Vas Deferens

Question 3

Vas Deferens

Answer 3

Transports activated spermatozoa to seminal vesicle

Question 4

Seminal Vesicle

Answer 4

Create 60% of semen
Fructose energizes spermatozoa
Semen + spermatozoa = cum

Question 5

Ejaculatory duct

Answer 5

Conduct cum to urethra

Question 6

Prostatic urethra

Answer 6

Conduct urine to urethra

Question 7

Prostrate gland

Answer 7

Secrete alkaline fluid (30% semen)
Lubrication, nutrition of sperm
Neutralize acidic vaginal

Question 8

Urethra

Answer 8

Transport urine or seminal fluid to outside

Question 9

Cowper’s gland

Answer 9

Produce precum fluid (Cowper’s fluid)
Neutralize acidic urine
Lubricate distal urethra

Question 10

Penis

Answer 10

Means of urination

Sexual function

Question 11

Scrotum

Answer 11

Holds testes together

Question 12

Glans (head of penis)

Answer 12

Sensitive to stimulating erection & ejaculation (orgasm)

Question 13

Leydig cells

Answer 13

Activated by LH
Produce testosterone
Maintain secondary sex characteristics

Question 14

Sertoli cells

Answer 14

Activated by FSH 
Produce ABP (androgen binding proteins)

ABP + testosterone = Sperm production (trigger Germ Cell to divide)

Question 15

Methods of reproduction (asexual)

Answer 15

Budding
Fission
Parthenogenesis

Question 16

Budding

Answer 16

Hydra, Yeast (multi & unicellular)

Daughter cell: identical genetic material, but much smaller (smaller cytoplasm & plasma membrane)

Question 17

Fission

Answer 17

Bacteria, prokaryotic cells (circular DNA)

Two identical daughter cells (cell grows and expand during replication)

Question 18

Parthenogenesis

Answer 18

Ants, bees

From unfertilized cell
Haploid, so

Daughter cell =half genetic info of parent

Question 19

Variation of reproduction strategies

Answer 19

Hermaphroditism (both testes and ovaries - both reproductive systems in 1 organism)
Ex: Platyhelminthes & Porifera
Ex: Annelida (more complex)
Earthworms - cross fertilization

2 distinct reproduction systems: Arthropods (either M or F)

Protogyny (female to male)

Protandry (male to female)

Question 20

External fertilization

Answer 20

Sperm fertilizes egg outside of females body

Question 21

Internal fertilization

Answer 21

Sperm fertilizes egg inside female body

Oviparity: egg fertilized inside, but deposited & develops outside

Ovoviviparity: full development inside, nourishment from egg yolk

Viviparity: full development inside, nourishment directly from mothers blood
Placenta: blood & gas exchange