L7 - Nervous and Endocrine Systems

Question 1

What is the name of the brain like structure in the head of an insect?

Answer 1

Supra-oesophageal ganglion

Question 2

What are the gangion names outside of the head?

Answer 2

Sub- oesophageal ganglions, T1-T10

Question 3

How many ganglions are there?

Answer 3

1 per body segment

Question 4

What 3 ganglia make up the insect brain?

Answer 4

Protocerebrum H1 = processing signals arriving from the ocelli and compound eyes via the optic lobes

Deutrocerebrum H2 = processing signals arriving from the antenna

Tritocerebrum H3 = processing signals arriving from the head and body

Question 5

What is H0?

Answer 5

The archecerebrum

Question 6

What are the 5 types of sense organ?

Answer 6

1) mechano receptors
2) Auditory receptors
3) Chemoreceptors
4) Temperature and Humidity receptors
5) Photoreceptors

Question 7

Where are auditory receptors found in:

a_ Hemiptera

b) cockroaches and crickets
c) locusts

Answer 7

a) Hemiptera - antenna - in drosophila it detects airbourne vibrations
b) cersi
c) 1st abdominal segment

Question 8

Where are chemoreceptors found usally, and how do mosquitos use them?

Answer 8

Usually found on the antenna and mosquitos use them to to smell sweat