LECTURE EXAM 6 - NERVOUS SYSTEM WITHOUT SENSES |
FROM QUESTION TO PERFECTION| STUDY WITH
CONFIDENCE!
Course Code:
Course Title:
Programme:
Academic Year: 2026/2027.
Duration: 2 Hours.
Total Marks: 100.
Candidate Instructions:
1) Write your Registration Number on every answer booklet used.
2) Answer ALL questions in Section A and ANY TWO (2) questions in Section B.
3) Read each question carefully before answering.
4) Begin each question on a new page.
5) The marks for each question are indicated in brackets.
6) This paper consists of several printed pages, including this page.
7) Ensure your copy is complete before the examination begins.
8) Unauthorized materials and communication with other candidates are not permitted.
Turn Over.
APPHIA – Crafted with Care and Precision for Academic Excellence.
1
,Nerves are the dynamic "functional units" of the nervous system.
T/F? Answer: False
Substance P is found in the pain impulse pathway from the spinal cord to the brain.
T/F? Answer: True
Some hormones can act as neurotransmitters and some neurotransmitters can act as hormones.
T/F? Answer: True
Neurons outnumber neuroglia cells 50:1.
T/F? Answer: False
Receptor cells detect stimuli and afferent neurons conduct the stimulus to the CNS.
T/F? Answer: True
Another name for an Interneuron is an Association Neuron.
T/F? Answer: True
Responses are carried out by muscles or glands known as Effectors.
T/F? Answer: True
Neurons leading from the PNS to the CNS are called Efferent Neurons.
T/F? Answer: False
The integrative function of the nervous system is carried out by the CNS.
T/F? Answer: True
Neurons exhibit an "all-or-none" response for action potentials.
T/F? Answer: True
Nerves exhibit "graded responses", but usually not all-or-none responses.
T/F? Answer: True
Which very specific structure of the neuron contains the vesicles of neurotransmitter? Answer:
terminal end-foot
Which structure of the neuron receives a stimulus from another neuron? Answer: Dendrite
Which structure of the neuron transfers an impulse away from the soma? Answer: Axon
The two anatomical divisions of the Nervous System are the ____ and ____. Answer: Central
Nervous System and Peripheral Nervous System
APPHIA – Crafted with Care and Precision for Academic Excellence.
2
,The two physiological divisions of the Nervous System are the ____ and ____. Answer:
Autonomic Nervous System and Somatic Nervous System
The division of the nervous system that consists of the brain and the spinal cord is the ___.
Answer: Central Nervous System
The conduction rate of myelinated neurons is ____ times faster than non-myelinated neurons.
Answer: 10-20
Which of the following have several dendrites and one axon? Answer: multipolar Neurons
Which of the following produce the Myelin Sheath on neurons in the CNS? Answer:
oligodendrocytes
Which of the following produce the Myelin Sheath on neurons in the PNS? Answer: Schwann
Cells
Which of the following form and move cerebral spinal fluid in the brain? Answer: Ependymal
Cells
Which of the following is NOT true about astrocytes? Answer: they freely move around in the
nervous tissue areas.
Which of these is NOT a property of nerve cells? Answer: excretion
Which of the following has the greatest influence on RMP? Answer: The amount of K+ and
protein- in the ICF.
The most abundant glial cells in the CNS are: Answer: Astrocytes
There exists 40X the concentration of _____ inside the neuron as there is outside of the neuron:
Answer: potassium
There exists 12X the concentration of _____ outside the neuron as there is inside of the neuron:
Answer: sodium
The subdivision of the PNS that carries efferent signals to the skeletal muscles to produce
muscular contractions under voluntary control is the: Answer: Somatic Motor Division
The subdivision of the PNS that carries efferent signals to the glands, cardiac and smooth
muscles to produce effects under involuntary control is the: Answer: Visceral Motor Division
The subdivision of the PNS that carries afferent signals from the heart, lungs, and stomach to the
CNS is the: Answer: Visceral Sensory Division
The subdivision of the PNS that carries afferent signals from the skin, muscles, bones and joints
to the CNS is the: Answer: Somatic Sensory Division
Which of the following is NOT true for a local potential? Answer: Are irreversible
Which of the following is NOT true for an action potential? Answer: Are reversible
APPHIA – Crafted with Care and Precision for Academic Excellence.
3
, For a neuron to fire, the internal voltage must reach a specific voltage, which is called: Answer:
threshold potential
The trigger zone is also called the... Answer: axon hillock
-55Mv is ... Answer: Threshold potential
Which of these is associated with relative refractory period? Answer: Hyperpolarization
-70mV is ... Answer: Resting membrane potential
Which of these is maintained by the sodium - potassium pump? Answer: Resting membrane
potential
When the internal membrane voltage of a neuron becomes more negative, after it peaks in the
positive direction, it is referred to as ... Answer: Repolarization
When the internal membrane voltage of a neuron becomes more positive. Answer:
Depolarization
The parasympathetic neurotransmitter for both the presynaptic and post synaptic neurons is
ACh.
T/F? Answer: True
Some hormones can act as neurotransmitters and some neurotransmitters can act as hormones.
T/F? Answer: True
Another name for an Interneuron is an Association Neuron.
T/F? Answer: True
The Sympathetic Nervous System and the Parasympathetic Nervous System work
antagonistically with each other.
T/F? Answer: True
Stress Response is a specific sequence of changes in metabolic activities resulting from
stressors.
T/F? Answer: True
Chronic high levels of stress hormones damage the brain, heart, lungs, and liver tissues.
T/F? Answer: True
Vigorous exercise has been demonstrated to relieve stress
T/F? Answer: False
Which of the following is true for the parasympathetic pathway in the PNS? Answer: the
postsynaptic soma and ganglion are located near or at the visceral organ.
APPHIA – Crafted with Care and Precision for Academic Excellence.
4
FROM QUESTION TO PERFECTION| STUDY WITH
CONFIDENCE!
Course Code:
Course Title:
Programme:
Academic Year: 2026/2027.
Duration: 2 Hours.
Total Marks: 100.
Candidate Instructions:
1) Write your Registration Number on every answer booklet used.
2) Answer ALL questions in Section A and ANY TWO (2) questions in Section B.
3) Read each question carefully before answering.
4) Begin each question on a new page.
5) The marks for each question are indicated in brackets.
6) This paper consists of several printed pages, including this page.
7) Ensure your copy is complete before the examination begins.
8) Unauthorized materials and communication with other candidates are not permitted.
Turn Over.
APPHIA – Crafted with Care and Precision for Academic Excellence.
1
,Nerves are the dynamic "functional units" of the nervous system.
T/F? Answer: False
Substance P is found in the pain impulse pathway from the spinal cord to the brain.
T/F? Answer: True
Some hormones can act as neurotransmitters and some neurotransmitters can act as hormones.
T/F? Answer: True
Neurons outnumber neuroglia cells 50:1.
T/F? Answer: False
Receptor cells detect stimuli and afferent neurons conduct the stimulus to the CNS.
T/F? Answer: True
Another name for an Interneuron is an Association Neuron.
T/F? Answer: True
Responses are carried out by muscles or glands known as Effectors.
T/F? Answer: True
Neurons leading from the PNS to the CNS are called Efferent Neurons.
T/F? Answer: False
The integrative function of the nervous system is carried out by the CNS.
T/F? Answer: True
Neurons exhibit an "all-or-none" response for action potentials.
T/F? Answer: True
Nerves exhibit "graded responses", but usually not all-or-none responses.
T/F? Answer: True
Which very specific structure of the neuron contains the vesicles of neurotransmitter? Answer:
terminal end-foot
Which structure of the neuron receives a stimulus from another neuron? Answer: Dendrite
Which structure of the neuron transfers an impulse away from the soma? Answer: Axon
The two anatomical divisions of the Nervous System are the ____ and ____. Answer: Central
Nervous System and Peripheral Nervous System
APPHIA – Crafted with Care and Precision for Academic Excellence.
2
,The two physiological divisions of the Nervous System are the ____ and ____. Answer:
Autonomic Nervous System and Somatic Nervous System
The division of the nervous system that consists of the brain and the spinal cord is the ___.
Answer: Central Nervous System
The conduction rate of myelinated neurons is ____ times faster than non-myelinated neurons.
Answer: 10-20
Which of the following have several dendrites and one axon? Answer: multipolar Neurons
Which of the following produce the Myelin Sheath on neurons in the CNS? Answer:
oligodendrocytes
Which of the following produce the Myelin Sheath on neurons in the PNS? Answer: Schwann
Cells
Which of the following form and move cerebral spinal fluid in the brain? Answer: Ependymal
Cells
Which of the following is NOT true about astrocytes? Answer: they freely move around in the
nervous tissue areas.
Which of these is NOT a property of nerve cells? Answer: excretion
Which of the following has the greatest influence on RMP? Answer: The amount of K+ and
protein- in the ICF.
The most abundant glial cells in the CNS are: Answer: Astrocytes
There exists 40X the concentration of _____ inside the neuron as there is outside of the neuron:
Answer: potassium
There exists 12X the concentration of _____ outside the neuron as there is inside of the neuron:
Answer: sodium
The subdivision of the PNS that carries efferent signals to the skeletal muscles to produce
muscular contractions under voluntary control is the: Answer: Somatic Motor Division
The subdivision of the PNS that carries efferent signals to the glands, cardiac and smooth
muscles to produce effects under involuntary control is the: Answer: Visceral Motor Division
The subdivision of the PNS that carries afferent signals from the heart, lungs, and stomach to the
CNS is the: Answer: Visceral Sensory Division
The subdivision of the PNS that carries afferent signals from the skin, muscles, bones and joints
to the CNS is the: Answer: Somatic Sensory Division
Which of the following is NOT true for a local potential? Answer: Are irreversible
Which of the following is NOT true for an action potential? Answer: Are reversible
APPHIA – Crafted with Care and Precision for Academic Excellence.
3
, For a neuron to fire, the internal voltage must reach a specific voltage, which is called: Answer:
threshold potential
The trigger zone is also called the... Answer: axon hillock
-55Mv is ... Answer: Threshold potential
Which of these is associated with relative refractory period? Answer: Hyperpolarization
-70mV is ... Answer: Resting membrane potential
Which of these is maintained by the sodium - potassium pump? Answer: Resting membrane
potential
When the internal membrane voltage of a neuron becomes more negative, after it peaks in the
positive direction, it is referred to as ... Answer: Repolarization
When the internal membrane voltage of a neuron becomes more positive. Answer:
Depolarization
The parasympathetic neurotransmitter for both the presynaptic and post synaptic neurons is
ACh.
T/F? Answer: True
Some hormones can act as neurotransmitters and some neurotransmitters can act as hormones.
T/F? Answer: True
Another name for an Interneuron is an Association Neuron.
T/F? Answer: True
The Sympathetic Nervous System and the Parasympathetic Nervous System work
antagonistically with each other.
T/F? Answer: True
Stress Response is a specific sequence of changes in metabolic activities resulting from
stressors.
T/F? Answer: True
Chronic high levels of stress hormones damage the brain, heart, lungs, and liver tissues.
T/F? Answer: True
Vigorous exercise has been demonstrated to relieve stress
T/F? Answer: False
Which of the following is true for the parasympathetic pathway in the PNS? Answer: the
postsynaptic soma and ganglion are located near or at the visceral organ.
APPHIA – Crafted with Care and Precision for Academic Excellence.
4
