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Flashcards in excretory products and elimination Deck (21)
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1

__, ___ and ___ are the
major forms of nitrogenous wastes excreted by the animals

Ammonia, urea and uric acid

2

___ is the most toxic nitrogrneous waste and requires large amount of water for its elimination

ammonia

3

___ is the least toxic nitrogrneous wase

uric acid (thus, doesnt require water for elimination)

4

read dis ❤

The process of excreting
ammonia is called Ammonotelism

5

'Kidneys do not play any significant role in its removal'. what is it?

ammonia

6

___ , ____ and ____ mainly excrete urea (ureotelic)

Mammals, many terrestrial amphibians and marine (cartilaginous) fishes

7

___, ___, ___ and ____ excrete nitrogenous wastes as uric acid in the form of pellet or paste with a minimum loss of water hence are called uricotelic animals

Reptiles, birds, land snails and insects

8

Protonephridia or flame cells are excretory structures in ___, ____ some ____ and the cephalochordate - ___

Platyhelminthes, rotifers, some annelids and the cephalochordate – Amphioxus

9

Protonephridia are primarily concerned with

ionic and fluid volume regulation, i.e., osmoregulation

10

Nephridia eg

earthworms and other annelids

11

`Name the excretory structure in prawn.
Solution : Antennal glands or green glands.

Solution : Antennal glands or green glands.

12

kidney is between __ and ___ vertebra

last thoracic and third lumbar vertebra

13

adult human measures __ - __cm in length, __ - __cm in width, _ - _ cm in thickness, average weight
of __-__ g.

10–12
5–7
2–3
120–170

14

left kidney is little higher than the right one cause?

Left kidney is little higher than the right one because of more space being occupied by the liver on right side

15

Towards the center of the inner concave surface of the kidney is a notch called hilum through which the ___, ___ and ___ pass

ureter, blood vessels and nerves pass.

16

innermost tough protective layer is called

Renal Capsule

17

renal capsule is made up of ___, ___, ___

made up of white fibrous connective tissue,
with few elastic fibres and few muscles

18

middle covering of kidney

adipose capsule

19

adipose capsule acts as

shock absorber

20

___ is the outermost fibrous cover linking the kidney with the abdominal wall.

Renal Fascia

21

just read dis 😊💖

As the kidneys are fused with the body wall on the dorsal side, peritoneal cover is present only on the ventral side. This arrangement is called retroperitoneal arrangement.