CAO PHYSO Y1M4 Exam Questions and Answers Already Passed Latest Update 2025-2026
What is the space between multiple neurons? - Answers Synapse
What would happen with an extended stimulation of the sympathetic nervous system? -
Answers The body would not be able to rest, recover, digest food and relax muscles.
A man suffers from peptic ulcer disease (stomach ulcer). Doctors have tried all medical
treatments (proton pump inhibitors, anti-histamines, prophylaxis for H-pylori) nothing has
worked. His doctor suggested surgery might help to cure patient's disease. What important
structure/nerve transaction will be helpful to manage disease? - Answers Branches of Vagus
nerve
Man suffers from peptic ulcer disease (stomach ulcer). After all treatments failed to cure ulcer,
doctors advised surgical removal of gastric branches of vagus nerve. What is the possible
explanation this will help to cure peptic ulcer disease? - Answers Decrease parasympathetic
supply will reduce acid secretion/production
Woman was brought to ER for uterine contractions, she is 34 weeks pregnant. On-call OB tells
patient that she has started preterm labour. Doctor decided to give steroids to patient for fetal
lung maturity, however doctors need to slow down patient's uterine contractions. The drug that
will slow down uterine contractions will act on which receptor? - Answers B2 receptors on
uterine wall
Woman suffers from pain during sexual intercourse. Experiences less pain if she uses
exogenous lubricants. No history of pelvic inflammatory disease, uterine instrumentation such
as intrauterine devices, surgery. She does not have vaginal disease and body temperature is
normal. Her abdominal examination is normal. What is the possible cause of her painful sexual
intercourse? - Answers Parasympathetic supply to genitals and accessory glands are affected
Man presents to his family physician for drooping right eyelid. Patient reported he has cough,
progressively getting worse. Patient reports dry mouth and difficulty swallowing. On
examination, patient's right eyelid is drooping, right pupil is smaller than left, facial skin is dry.
Patient smoke 2 packs of cigarettes daily for last 20 years. What is most probably cause of this
patient's symptoms? - Answers Cervical sympathetic chain damage due to lung cancer
Man suffers with exercise induced asthma. Family physician prescribes inhaler and advises
patient to inhale before and after exercise. What is possible mechanism that this drug is
supposed to function on? - Answers Drug will act on Beta 2 receptors, which will cause
bronchial dilation
What are examples of effectors in the Autonomic Nervous System? - Answers Cardiac muscle
Glands
, Smooth muscle
What is the general function of the Autonomic Nervous System? - Answers Control and
Adaptation of body systems to internal and/or external changes.
Organs that have dual innervation are innervated by: - Answers Both sympathetic fibers and
parasympathetic fibers. Most visceral organs have dual innervation.
What are 3 possible results of dual innervation? - Answers Antagonistic
Complementary
Cooperative
If both sympathetic and parasympathetic fibers are innervating the same cells and the actions
counteract each other, this is called? - Answers Antagonistic
If both sympathetic and parasympathetic fibers are innervating the same cells, and both cause
similar effects, this is called? - Answers Complimentary
If both sympathetic and parasympathetic fibers are innervating the same cells and both cause
different effects that work together to produce the desired result, this is called? - Answers
Cooperative
What neurotransmitter is released at the sympathetic preganglionic site?
A. Acetylcholine
B. Nor-adrenaline
C. Adrenaline
D. Serotonin - Answers A. Acetylcholine
What neurotransmitter is released at the sympathetic postganglionic site?
A. Acetylcholine
B. Nor-epinephrine
C. Adrenaline
D. Serotonin - Answers B. Nor-ephinephrine or Nor-adrenaline
What neurotransmitter is released at the parasympathetic postganglionic site?
A. Acetylcholine
B. Nor-adrenaline
What is the space between multiple neurons? - Answers Synapse
What would happen with an extended stimulation of the sympathetic nervous system? -
Answers The body would not be able to rest, recover, digest food and relax muscles.
A man suffers from peptic ulcer disease (stomach ulcer). Doctors have tried all medical
treatments (proton pump inhibitors, anti-histamines, prophylaxis for H-pylori) nothing has
worked. His doctor suggested surgery might help to cure patient's disease. What important
structure/nerve transaction will be helpful to manage disease? - Answers Branches of Vagus
nerve
Man suffers from peptic ulcer disease (stomach ulcer). After all treatments failed to cure ulcer,
doctors advised surgical removal of gastric branches of vagus nerve. What is the possible
explanation this will help to cure peptic ulcer disease? - Answers Decrease parasympathetic
supply will reduce acid secretion/production
Woman was brought to ER for uterine contractions, she is 34 weeks pregnant. On-call OB tells
patient that she has started preterm labour. Doctor decided to give steroids to patient for fetal
lung maturity, however doctors need to slow down patient's uterine contractions. The drug that
will slow down uterine contractions will act on which receptor? - Answers B2 receptors on
uterine wall
Woman suffers from pain during sexual intercourse. Experiences less pain if she uses
exogenous lubricants. No history of pelvic inflammatory disease, uterine instrumentation such
as intrauterine devices, surgery. She does not have vaginal disease and body temperature is
normal. Her abdominal examination is normal. What is the possible cause of her painful sexual
intercourse? - Answers Parasympathetic supply to genitals and accessory glands are affected
Man presents to his family physician for drooping right eyelid. Patient reported he has cough,
progressively getting worse. Patient reports dry mouth and difficulty swallowing. On
examination, patient's right eyelid is drooping, right pupil is smaller than left, facial skin is dry.
Patient smoke 2 packs of cigarettes daily for last 20 years. What is most probably cause of this
patient's symptoms? - Answers Cervical sympathetic chain damage due to lung cancer
Man suffers with exercise induced asthma. Family physician prescribes inhaler and advises
patient to inhale before and after exercise. What is possible mechanism that this drug is
supposed to function on? - Answers Drug will act on Beta 2 receptors, which will cause
bronchial dilation
What are examples of effectors in the Autonomic Nervous System? - Answers Cardiac muscle
Glands
, Smooth muscle
What is the general function of the Autonomic Nervous System? - Answers Control and
Adaptation of body systems to internal and/or external changes.
Organs that have dual innervation are innervated by: - Answers Both sympathetic fibers and
parasympathetic fibers. Most visceral organs have dual innervation.
What are 3 possible results of dual innervation? - Answers Antagonistic
Complementary
Cooperative
If both sympathetic and parasympathetic fibers are innervating the same cells and the actions
counteract each other, this is called? - Answers Antagonistic
If both sympathetic and parasympathetic fibers are innervating the same cells, and both cause
similar effects, this is called? - Answers Complimentary
If both sympathetic and parasympathetic fibers are innervating the same cells and both cause
different effects that work together to produce the desired result, this is called? - Answers
Cooperative
What neurotransmitter is released at the sympathetic preganglionic site?
A. Acetylcholine
B. Nor-adrenaline
C. Adrenaline
D. Serotonin - Answers A. Acetylcholine
What neurotransmitter is released at the sympathetic postganglionic site?
A. Acetylcholine
B. Nor-epinephrine
C. Adrenaline
D. Serotonin - Answers B. Nor-ephinephrine or Nor-adrenaline
What neurotransmitter is released at the parasympathetic postganglionic site?
A. Acetylcholine
B. Nor-adrenaline
