Nervous system

Question 1

Signal transmission is always…

Answer 1

Unidirectional

Question 2

3 types of neurons

Answer 2

1. Bipolar
2. Unipolar
3. Mulitpolar

Question 3

What are the four main parts of the insect central nervous system?

Answer 3

1. Brain
2. Subesophageal ganglion (Ssalivary glands and neck muscles)
3. Thoracic ganglia (3 pairs that control locomotion)
4. Abdominal ganglia (2 pairs that control abdominal movement)

Question 4

What are the three parts of the insect brain?

Answer 4

1. PROTOCEREBRUM (vision)
2. DEUTOCEREBRUM (sensory info via antennae)
3. TRITOCEREBRUM (partly mouthparts and integrate info from the other two parts)

Question 5

What is a commissure

Answer 5

A link to the brain with the rest of the ventral nerve cord around the digestive system in the Tritocerebrum