DIGESTIVE SYTEM AND ALIMENTARY CANAL

Question 1

What are digestive system ?

Answer 1

It includes alimentary canal and relate digestive glands

Question 2

What are the types alimentary canals ?

Answer 2

1. Incomplete alimentary canal

2. Complete alimentary canal

Question 3

What are Incomplete alimentary canal ?

Answer 3

1. It has single opening which act as both mouth and anus (blind sac)
2. Found in coelenterate to Platyhelminthes

Question 4

What are complete alimentary canal ?

Answer 4

1. It has two opening at opposite end of which one acts mouth(ingestion) and another act as anus (egestion)
2. Found in aschelminthes to Chordata

Question 5

What type of alimentary canal is present in the humans ?

Answer 5

Complete and present between mouth and anus.

Question 6

What are the parts of humans alimentary canal ?

Answer 6

1. Foregut \ stomodaeum
2. Midgut \ mesodaeum
3. Hindgut \ proctodaeum

Question 7

What is Foregut \ stomodaeum ?

Answer 7

1. Ectoderm

2. Mouth – Buccal cavity

Question 8

What is Midgut \ mesodaeum ?

Answer 8

1. Endoderm

2. Pharynx – Oesophagus – Stomach – Intestine

Question 9

What is Hindgut \ proctodaeum ?

Answer 9

1. Ectoderm

2. Rectum – Anus