Which is most likely to be the longest structure in a neuron?
What is axon
100
Neurons are responsible for which of the following responses in the body?
What is all communication within the nervous system
100
Increasing the intensity of a stimulus above the threshold will not similarly increase the intensity of a neural response to that stimulus. This highlights the nature of the:
What is all-or-none response.
100
an electronic switch that can be “on” or “off” is the best metaphor for
What is neuron
100
The part of the peripheral nervous system that controls glandular activity and the muscles of internal organs is called the:
What is autonomic nervous system.
200
The function of ________ is to receive incoming signals from other neurons.
What is dendrites
200
A neural impulse is called:
What is an action potential.
200
The main functions of ______ terminals are to store neurotransmitters and release them into the synapse.
What is axon
200
Chemical messengers produced by endocrine glands are called:
What is hormones.
200
Messages are transmitted from your spinal cord to muscles in your hands by the ________ nervous system.
What is peripheral
300
Which of the following neural structures is most like the plastic insulation that surrounds an electrical wire?
What is myelin sheath
300
What structure in the body receives neurotransmitters, and may send neurotransmitters across a synapse?
What is neuron
300
The spaces on dendrites designed to receive specific MSCs of neurotransmitters are called:
What is receptor sites.
300
A nerve disorder that interferes with neural impulses traveling in the arms and legs is a disorder of the _____ nervous system.
What is peripheral
400
The brief recharging phase a neuron requires between firings is called:
What is refractory period.
400
Information is carried from the central nervous system to the tissues by:
What is motor neurons.
400
If a doctor finds that a patient's entire endocrine system is not being controlled correctly, the doctor might start by examining the ______ gland very carefully.
What is pituitary gland
400
What is the most likely effect of a drug that acts as an antagonist for the neurotransmitter serotonin?
What is increased depression
400
Which two parts of the nervous system work in opposition to each other, either slowing down or speeding up our bodily processes?
What is sympathetic; parasympathetic
500
Which is the correct sequence in the transmission of a neural impulse?
What is dendrite, cell body, axon, synapse
500
If a neurotransmitter has an _______ _____, then it increases the chances that the next neuron will fire.
What is excitatory effect
500
Which of the following hormones would have helped Little Red Riding Hood the most in her efforts to run away from the Big Bad Wolf?
What is epinephrine
500
Schizophrenia is most closely linked with excess activity at receptor sites for the neurotransmitter:
What is dopamine.
500
You come home one night to find a burglar in your house. Your heart starts racing and you begin to perspire. These physical reactions are triggered by the: