ANAT 1053 Unit2: The Nervous System-Part
1-Week 3 UPDATED ACTUAL Exam
Questions and CORRECT Answers
the neuron - CORRECT ANSWER - cell that carries nerve impulse information( nerve cells,
specialized to transmit messages)
dendrite - CORRECT ANSWER - delivers impulse to cell body
cell body - CORRECT ANSWER - contains a nucleus which directs the cell activities and
organelles of the neuron
Axon - CORRECT ANSWER - carries impulses away from the cell body
myelin sheath - CORRECT ANSWER - Covers the axon of some neurons and aids in
increasing the speed of neural impulses(electrical signals)
Synapse - CORRECT ANSWER - the space between the terminal buttons of one neuron and
the dendrites of the next neuron
Neurotransmitters - CORRECT ANSWER - chemical messengers that cross the synaptic gaps
between neurons
nervous system - CORRECT ANSWER - the body speedy, electrochemical communication
network, consisting of all the nerve cells of the peripheral and central nervous system.
fundamental functions of the nervous system - CORRECT ANSWER - sensory, integrative
and motor
, sensory - CORRECT ANSWER - the ability to respond to stimuli within and around the body
and to generate signals that carry information about those stimuli to the spinal cord or brain
integrative - CORRECT ANSWER - the ability to receive and process information, store and
retrieve it, and to make decisions as to whether or how to respond to it.
motor - CORRECT ANSWER - the ability to issue outgoing signals to muscle and gland cells
to produce a response
CNS (central nervous system) - CORRECT ANSWER - Command centre, organs-Brain and
spinal cord
PNS (peripheral nervous system) - CORRECT ANSWER - Messenger, nerves extending from
the brain and spinal cord
-spinal nerve, carry impulses to and from the spinal cord
-cranial nerve, carry impulses to and from the brain
action potential - CORRECT ANSWER - neuron transmits the signal as an impulse called an
action potential, iron cross the neuron's membrane, causing electrical changes that transmit the
nerve impulse
action potential - CORRECT ANSWER - the change in electrical potential associated with the
passage of an impulse along the membrane of a muscle cell or nerve cell.
K+ - CORRECT ANSWER - is the major positive ion inside the cell
Na+ - CORRECT ANSWER - is the major positive outside the cell
3Na+ - CORRECT ANSWER - out of the cell
1-Week 3 UPDATED ACTUAL Exam
Questions and CORRECT Answers
the neuron - CORRECT ANSWER - cell that carries nerve impulse information( nerve cells,
specialized to transmit messages)
dendrite - CORRECT ANSWER - delivers impulse to cell body
cell body - CORRECT ANSWER - contains a nucleus which directs the cell activities and
organelles of the neuron
Axon - CORRECT ANSWER - carries impulses away from the cell body
myelin sheath - CORRECT ANSWER - Covers the axon of some neurons and aids in
increasing the speed of neural impulses(electrical signals)
Synapse - CORRECT ANSWER - the space between the terminal buttons of one neuron and
the dendrites of the next neuron
Neurotransmitters - CORRECT ANSWER - chemical messengers that cross the synaptic gaps
between neurons
nervous system - CORRECT ANSWER - the body speedy, electrochemical communication
network, consisting of all the nerve cells of the peripheral and central nervous system.
fundamental functions of the nervous system - CORRECT ANSWER - sensory, integrative
and motor
, sensory - CORRECT ANSWER - the ability to respond to stimuli within and around the body
and to generate signals that carry information about those stimuli to the spinal cord or brain
integrative - CORRECT ANSWER - the ability to receive and process information, store and
retrieve it, and to make decisions as to whether or how to respond to it.
motor - CORRECT ANSWER - the ability to issue outgoing signals to muscle and gland cells
to produce a response
CNS (central nervous system) - CORRECT ANSWER - Command centre, organs-Brain and
spinal cord
PNS (peripheral nervous system) - CORRECT ANSWER - Messenger, nerves extending from
the brain and spinal cord
-spinal nerve, carry impulses to and from the spinal cord
-cranial nerve, carry impulses to and from the brain
action potential - CORRECT ANSWER - neuron transmits the signal as an impulse called an
action potential, iron cross the neuron's membrane, causing electrical changes that transmit the
nerve impulse
action potential - CORRECT ANSWER - the change in electrical potential associated with the
passage of an impulse along the membrane of a muscle cell or nerve cell.
K+ - CORRECT ANSWER - is the major positive ion inside the cell
Na+ - CORRECT ANSWER - is the major positive outside the cell
3Na+ - CORRECT ANSWER - out of the cell
