Lecture 10

Question 1

gonads and ——- are related embryologically

Answer 1

kidneys

Question 2

gonads and kidneys are derived from ————

Answer 2

mesoderm

Question 3

more specifically, where does the kidneys arise from?

Answer 3

the mesomere

Question 4

define archinephric duct:

Answer 4

it means old duct. It represents this embryonic version of a duct that gets hooked up all the way around the ventral side of the kidney.

Question 5

what are the three parts of the embryonic kidney?

Answer 5

1. pronephros
2. mesonephros
3. metanephros

Question 6

In some animals there is not a big difference between met and mesonephros so they are combined and called what?

Answer 6

opisthennephros

Question 7

archinephric duct turns into what in the adult

Answer 7

1. pronephric duct/mesonephric duct
2. wolffian duct
3. Opisthonephric duct
4. Ductus deferens

Question 8

the mullerian duct turns into what in females?

Answer 8

oviduct

Question 9

the metanephric duct turns into what?

Answer 9

ureter

Question 10

Pronephros is functional where:

Answer 10

functional in anamniote embryos and adult agnathans

Question 11

mesonephros is functional where?

Answer 11

in all embryos and adult hagfish

Question 12

metanephros is functional where?

Answer 12

functional in amniote embryos and adults

Question 13

Opisthenephros is functional where?

Answer 13

functional in adult lamprey, gnathostome fishes and amphibians and all embryos except hagfish.

Question 14

many adaptation for different environments are in the renal tubule structures such as…..

Answer 14

1. blood filtration
2. salt regulation
3. water regulation

Question 15

gonads develop from what?

Answer 15

from mesoderm of genital ridge