Question: Your face is on the _______________ side of your head.
Answer Choices:
Dorsal
Posterior
Anterior
Ventral
Answer: Anterior
Question: Which of the following are synthesized from tyrosine?
Answer Choices:
Catecholamines
Monoamines
Indolamines
Amino acids
Answer: Catecholamines
Question: Conduction of action potentials in myelinated axons _______________.
Answer Choices:
Is impossible
Is faster than in unmyelinated axons
Is slower than in unmyelinated axons
Is always inhibitory
Answer: Is faster than in unmyelinated axons
Question: Curare functions by _______________.
Answer Choices:
Preventing cholinergic receptors from binding with acetylcholine released into the synapse
Accelerating the enzymatic degradation of serotonin in the synaptic cleft
Blocking reuptake of dopamine in the synapse
Destroying vesicles inside the presynaptic membrane
Answer: Preventing cholinergic receptors from binding with acetylcholine released into the synapse
Question: A bundle of axons in the central nervous system is known as a _______________.
Answer Choices:
Ganglia
Nucleus
Tract
Nerve
Answer: Tract
Question: A neuron becomes less likely to fire when it undergoes _______________.
Answer Choices:
Myelination
Hyperpolarization
Depolarization
Haptic unwrapping
Answer: Hyperpolarization
Question: Which of the following are responsible for myelination of axons in the peripheral nervous system?
Answer Choices:
Oligodendrocytes
Astrocytes
Vesicles
Schwann cells
Answer: Schwann cells
Question: Which of the following is responsible for dilation of pupils, increased heart rate, and inhibition of metabolism in stressful situations?
Answer Choices:
Somatic nervous system
Parasympathetic nervous system
Sympathetic nervous system
Central nervous system
Answer: Sympathetic nervous system
Question: Action potentials are started by the _______________.
Answer Choices:
Closing of voltage-activated potassium channels
Closing of voltage-activated calcium channels
Opening of voltage-activated sodium channels
Closing of voltage-activated chloride channels
Answer: Opening of voltage-activated sodium channels
Question: Many effective antischizophrenic drugs _______________.
Answer: Block dopamine receptors
Question: The blood brain barrier protects the brain against:
Answer Choices:
Excessive periodic firing
Physical trauma
Malnutrition
Large molecules that might harm it
Answer: Large molecules that might harm it
Question: The myelencephalon is composed largely of:
Answer Choices:
Tracts
Bone marrow
Ganglia
Ventricles
Answer: Tracts
Question: Which of the following help correct neurotransmitter levels when too much is being released into the synapse?
Answer Choices:
Postsynaptic receptors
Dendritic receptors
Autoreceptors
Somatic receptors
Answer: Autoreceptors
Question: The neurotransmitter _______________ is classified as an indolamine because it is synthesized from tryptophan.
Answer Choices:
Glutamate
Dopamine
Epinephrine
Serotonin
Answer: Serotonin
Question: Cerebrospinal fluid circulates through the _______________.
Answer Choices:
Ventricles
All of the above
Central canal
Subarachnoid space
Answer: All of the above
Question: Synaptic vesicles tend to be stored in (and released from) the _______________.
Answer Choices:
Dendrites
Terminal button
Nucleus
Axon
Answer: Terminal button
Question: Which of the following is the most recently evolved portion of the brain and is involved in personality, impulse inhibition, and decision-making?
Answer Choices:
Myelencephalon
Prefrontal cortex
Metencephalon
Telencephalon
Answer: Prefrontal cortex
Question: Adrenergic neurons release _______________.
Answer Choices:
Dopamine
Epinephrine
Serotonin
Acetylcholine
Answer: Epinephrine
Question: In comparison to ionotropic receptors, metabotropic receptors _______________.
Answer Choices:
Produce longer lasting effects
All of the above
Produce effects that take longer to develop
Are more common
Answer: All of the above