Intro to Neuroscience Quiz for Exam 1

What is the main cell type of the nervous system?

• Astrocytes

• Neurons

• Oligodendrocytes

• Microglia

Which neurotransmitter is responsible for regulating mood and sleep?

• Glutamate

• GABA

• Acetylcholine

• Serotonin

What is the function of the blood-brain barrier?

• To protect the brain from injury

• To regulate neurotransmitter levels

• To facilitate communication between neurons

• To maintain the extracellular chemical environment

Which neurotransmitter is associated with reward and motivation?

• Dopamine

• Norepinephrine

• Epinephrine

• Glutamate

What is the role of autoreceptors in neurotransmission?

• To regulate the release of neurotransmitters

• To break down neurotransmitters in the synaptic cleft

• To transport neurotransmitters back into the presynaptic neuron

• To bind to receptors on the postsynaptic neuron

Which enzyme is responsible for the synthesis of acetylcholine?

• Glutaminase

• Glutamic acid decarboxylase

• Choline Transferase

• Tryptophan-5-hydroxylase

What is the function of the cerebellum?

• To regulate autonomic functions

• To process sensory input

• To control voluntary smooth movements

• To maintain the extracellular chemical environment

What is the resting membrane potential of a neuron?

• -70mV

• -40mV

• -90mV

• -20mV

Which part of the brain is responsible for emotional behavior and memory formation?

• Cerebral cortex

• Limbic system

• Brainstem

• Basal ganglia

How are neurotransmitters removed from the synapse?

• Through enzymatic inactivation

• Through reuptake mechanisms

• Through autoreceptors

• Through ion channels