Quiz 3
Module 3 (Neuroscience)
Question 1
Which of the main divisions of the brain are associated with survival functions and movement?
A. The midbrain
B. The hindbrain
C. Spinal Cord
D. The forebrain
Answer
B. The hindbrain
This division is associated with survival functions and movement.
Question 2
According to the textbook, during which phase of neural communication do the effects on the postsynaptic neuron add together in the cell body?
A. Reception Phase
B. Transmission Phase
C. Integration Phase
D. Forming Phase
Answer
C. Integration Phase
The neurotransmitters either have excitatory or inhibitory effects on the postsynaptic neuron which are summed together in the cell body.
Question 3
What lobe of the cerebral cortex would primarily process the physical sensation of a hug?
A. Temporal
B. Parietal
C. Occipital D. Frontal
Answer
B. Parietal
The parietal lobe processes touch and spatial relations. Thus, this lobe allows you to feel the touch.
Question 4
What role does the synapse play in the neural system?
A. It is the gap between neurons that prevents an action potential
B. It is where neurotransmitters are released to bind to another neuron
C. It is where neurotransmitters regenerate and travel down the axon
D. It is the space in the myelin sheath that helps revive action potential
Answer
B. It is where neurotransmitters are released to bind to another neuron
The synapse is the site of inter-neural communication.
Question 5
According to the textbook, which of the major neurotransmitters would you want to increase to relieve someone experiencing rigid muscles and tremors?
A. Dopamine
B. Acetylcholine
C. Serotonin
D. Endorphins
Answer
A. Dopamine
L-DOPA is given to patients with Parkinson’s to help surviving neurons produce more dopamine.
Question 6
On what part of the neuron does the action potential mainly travel?
A. Nucleus
B. Dendrite
C. Myelin
D. Axon\
Answer
D. Axon
The action potential is an electrical signal that comes from the axon.
Question 7
What physical property of a neuron allows a signal to travel down an axon?
A. The projections of the axon terminal
B. Growth and Plasticity of the neuron’s structure
C. Secretion of neurotransmitters along the axon
D. The charge difference between the inside and outside
Answer
D. The charge difference between the inside and outside
The charge difference allows the signal to move down the axon.
Question 8
According to this week’s videos, temporal resolution represents a brain imaging technique’s ability to do what?
A. Measuring the exact duration of an activation
B. Identify the exact time an activation occurs
C. Detect the exact intensity of an activation D. Determine the exact location of an activation
Answer
B. Identify the exact time an activation occurs
Temporal accuracy has to do with the level of accuracy in identifying when an activity happened.
Question 9
Which of the following statements is correct regarding the action potential?
A. Threshold is the point that precedes a neuron’s depolarization.
B. The refractory period is the time when a neuron fires an action potential.
C. Repolarization is when a neuron is returning to its resting state.
D. Depolarization occurs when a neuron’s potential drops below -40mV.
Question 10
Which of the following behaviors would be primarily influenced by your amygdala?
A. Recognizing popcorn by the smell
B. Driving home without directions
C. Acting nervous around new people
D. Feeling too full after eating
Answer
C. Acting nervous around new people
The amygdala is associated with fear. The amygdala is important for processing the emotional significance of stimuli around you, especially for things that make you afraid.