Crash Course Psych #3 - The Chemical Mind

What is a core principle in understanding how the mind works?

• Everything psychological is biological.

• The mind operates independently of the body.

• Mental activity is separate from biological processes.

• Psychology is solely about environmental influences.

Which of the following are the three basic parts of a neuron?

• Nucleus, DNA, Mitochondria

• Cell body, Dendrites, Axon

• Myelin sheath, Synapse, Receptors

• Glial cells, Neurotransmitters, Action potential

What is the primary function of the myelin sheath in a neuron?

• To receive messages from other cells.

• To transmit electrical impulses to other neurons.

• To speed up the transmission of messages.

• To provide life support for the neuron.

What are the chemical messengers that jump across the synaptic gap to transmit signals between neurons?

• Action potentials

• Dendrites

• Neurotransmitters

• Receptor sites

Are you enjoying the video lesson?

• Yes

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Which of the following neurotransmitters is primarily inhibitory, decreasing the likelihood of a neuron firing?

• Glutamate

• Serotonin

• GABA

• Acetylcholine

Low levels of which neurotransmitter are linked to depression, while excessive amounts of another are associated with schizophrenia?

• Serotonin; Dopamine

• Dopamine; Acetylcholine

• GABA; Serotonin

• Acetylcholine; GABA

How does the speed of communication in the endocrine system compare to that of the nervous system?

• The nervous system communicates faster than the endocrine system.

• The endocrine system communicates faster than the nervous system.

• Both systems communicate at the same speed.

• The speed of communication varies too much to compare.

Which gland is often referred to as the "master gland" because its secretions regulate the activity of other endocrine glands?

• Adrenal gland

• Pancreas

• Thyroid gland

• Pituitary gland