psychology questions

psychology questions Chapter 2

Correct answers are highlighted in red

1 To excite or inhibit an action potential in a receiving neuron, a neurotransmitter must cross the ______.

· Synaptic gap

· Endocrine glands

· Axon

· Myelin sheath

2 Karens years of experience navigating the streets of a very large city as a taxi driver have resulted in changes in her brains spatial memory centres that support her detailed street location. This best illustrates the value of?

· Refractory periods

· Plasticity

· Echo location

· Reuptake

3 The brains oldest region is the?

· Hippocampus

· Amygdala

· Hypothalamus

· Brainstem

4. The autonomic nervous system most directly controls _____.

			a.	Movement of the arms and legs.
			b.	Speech production.
			c.	Thinking and memory.
			d.	Bladder contractions.

5. Which of the following chemical messengers is both a neurotransmitter and a hormone?

a.	serotonin
b.	acetylcholine
c.	dopamine
d.	norepinephrine

norepinephrine

6 Your life would be most immediately threatened if you suffered destruction of the ______.

Cerebellum.

Medulla.

Amygdala.

Hippocampus.

7 Which hormone enables contractions associated with birthing and milk flow during nursing?

epinephrine

oxytocin

insulin

cortisol

8. Activation of the sympathetic nervous system ________ blood sugar levels and ________ the pupils of the eyes.

lowers; dilates

lowers; contracts

raises; contracts

raises; dilates

9 While listening to operatic solos, musicians process the lyrics and the tunes in separate brain areas. This most clearly illustrates the functioning of different ______.

	a.	Parathyroid.
	b.	neural networks.
	c.	Neurotransmitters.
	d.	Reflex systems.

10. An axon transmits messages ________ the cell body and a dendrite transmits messages ________ the cell body.

	a.	away from; toward
	b.	away from; away from
	c.	toward; toward
	d.	toward; away from

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