Chapter 2

Biological Psychology · 12 exercises

Problem 2

What is the difference between temporal summation and spatial summation?

3 step solution

Problem 3

What was Sherrington's evidence for inhibition in the nervous system?

3 step solution

Problem 5

Can an inhibitory message flow along an axon?

4 step solution

Problem 7

What does a highly active brain area do to increase its blood supply?

3 step solution

Problem 8

Name the three catecholamine neurotransmitters.

2 step solution

Problem 9

When the action potential reaches the presynaptic terminal, which ion must enter the presynaptic terminal to evoke release of the neurotransmitter?

4 step solution

Problem 10

How do ionotropic and metabotropic synapses differ in speed and duration of effects?

3 step solution

Problem 11

What are second messengers, and which type of synapse relies on them?

2 step solution

Problem 12

How are neuropeptides special compared to other transmitters?

5 step solution

Problem 14

What happens to acetylcholine molecules after they stimulate a postsynaptic receptor?

4 step solution

Problem 19

Which part of the pituitary-anterior or posterior-is neural tissue, similar to the hypothalamus? Which part is glandular tissue and produces hormones that control the secretions by other endocrine organs?

3 step solution

Problem 20

In what way is a neuropeptide intermediate between neurotransmitters and hormones?

4 step solution

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