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Neurons found in the centre of the spinal cord that receive information from the sensory neurons and send commands to the muscles through the motor neurons are called:


A) motor neurons.
B) interneurons.
C) sensory neurons.
D) afferent neurons.

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Neurons that carry information from the senses to the spinal cord are called:


A) motor neurons.
B) interneurons.
C) sensory neurons.
D) efferent neurons.

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Every deliberate action you make,such as pedaling a bike,walking,scratching,or smelling a flower,involves neurons in the ______ nervous system.


A) sympathetic
B) somatic
C) parasympathetic
D) autonomic

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A/an ______ is a measure of how strongly two variables are related to each other.


A) independent variable
B) dependent variable
C) experimental effect
D) correlation

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The endocrine glands secrete chemicals called:


A) pheromones into the bloodstream.
B) hormones into the bloodstream.
C) pheromones onto bodily tissues.
D) hormones onto bodily tissues.

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Which of the following is responsible for the ability to selectively attend to certain kinds of information in one's surroundings and become alert to changes?


A) reticular formation
B) pons
C) medulla
D) cerebellum

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Bill was admitted to the hospital last week after he fell.When Bill's son visited,he found his father was unable to get words out in a smooth,connected fashion.If Bill's difficulty speaking is due to brain damage,what is the likely location of the damage?


A) Broca's area
B) right hemisphere
C) Wernicke's area
D) somatosensory cortex

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If you burn your finger,your immediate reaction will probably involve all BUT which of the following?


A) the brain
B) the spinal cord
C) sensory neurons
D) motor neurons

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Libby's physician refers her to a medical centre in order to have the biochemical activity in her brain analyzed.She is given an injection of a radioactive glucoselike substance and then is told to lie down with her head in a scanner.The technique being used is:


A) positronic emission tomography.
B) functional magnetic resonance imaging.
C) microelectrode recording.
D) an electroencephalograph.

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Ali is in the hospital about to undergo a brain-imaging process that involves taking many X-rays from different angles aided by the use of a computer.What type of imaging technique is being used?


A) electroencephalography (EEG)
B) magnetic resonance imaging (MRI)
C) positron-emission tomography (PET)
D) computerized axial tomography (CT)

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Which of the following provinces likely has the highest rate of multiple sclerosis?


A) Manitoba
B) British Columbia
C) Ontario
D) Quebec

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A

Denise just received the results of a complete physical that found her body is not producing enough insulin.Which of the following endocrine glands is affecting her body's ability to produce insulin?


A) adrenal
B) pituitary
C) thyroid
D) pancreas

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Involuntary muscles are controlled by the ________ nervous system.


A) somatic
B) autonomic
C) sympathetic
D) parasympathetic

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The cerebellum:


A) controls blood pressure.
B) is involved in emotional regulation.
C) coordinates involuntary rapid fine-motor movement.
D) relays messages from the sensory receptors.

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C

The subdivision of the peripheral nervous system that consists of nerves that control all the involuntary muscles,organs,and glands is called the _________ nervous system.


A) somatic
B) autonomic
C) sympathetic
D) parasympathetic

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"All or none" is the principle stating that:


A) a neuron either fires or does not fire.
B) a neuron fires at full strength or not at all.
C) all the dendrites must be receiving messages telling the neuron to fire or it will not fire at all.
D) all axons must be receiving messages telling the neuron to fire or it will not fire at all.

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The branches at the end of the axon are called:


A) axon terminals.
B) synaptic vesicles.
C) synapses.
D) receptor sites.

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The ________ is the part of the brain responsible for the formation of long-term memories.


A) hippocampus
B) hypothalamus
C) thalamus
D) amygdala

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A fatty substance that is wrapped around the shaft of axons in the nervous system and whose function is to insulate neurons and speed up the neural impulse is called a:


A) synaptic vesicle.
B) dendrite.
C) glial cell.
D) myelin cell.

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D

A chemical found in the synaptic vesicles that,when released,has an effect on the next cell is called a:


A) glial cell.
B) neurotransmitter.
C) precursor cell.
D) synapse.

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