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WorksheetsAutonomic Nervous System
Total questions: 16
Worksheet time: 23mins
Which of the following is a feature of the parasympathetic division of the autonomic nervous system?
postganglionic neurones with cell bodies in anterior horn of S2-S4 segments of spinal cord
preganglionic neurones will cell bodies in lumbar segments of spinal cord
postganglionic neurones with relatively short axons
synapses between preganglionic and postganglionic neurones in collateral ganglia
preganglionic neurones with large diameter myelinated axons
Which of the following is not a beta-2 adrenergic receptor mediated effect?
vasoconstriction of blood vessels in skin
dilation of smooth muscle of airways
vasodilation of blood vessels in cardiac muscle
decrease molility of digestive tract
vasodilation of blood vessels in skeletal muscle
Which of the following associations between activation of muscarinic acetylcholine receptor types and physiological responses is incorrect?
activation of M3 receptors causes an increase in secretion from salivary glands
activation of M2 receptors causes a decrease in heart rate
activation of M1 receptors causes an increase in contraction of sphincters of the digestive tract
activation of M3 receptors causes an increase in contraction of smooth muscle of digestive tract
activation of M1 receptors cause an increased secretion from gastric glands of stomach
Which of the following is/are features of the autonomic nervous system?
1. the control of secretions of some glands
2. the control of contraction of skeletal muscle
3. unconscious control of smooth muscle
1 only
1 & 3 only
2 & 3 only
2 only
1 & 2 only
Which of the following is not a characteristic of the sympathetic division of the autonomic nervous system?
preganglionic neurones with short axons
preganglionic neurones with their cell bodies in T1 to L2/3 segments of spinal cord
sympathetic postganglionic neurones with large diameter myelinated axons
postganglionic neurones with long axons
it is also known as thoracolumbar division
Which of the following is NOT a consequence of activity in sympathetic division of autonomic nervous system (ANS)?
increased force of contraction of heart
dilation of bronchioles
constriction of pupils of the eye
decreased motility of digestive tract
increased rate of contraction of the heart
Which of the following correlations between drugs and clinical uses is correct?
Drug Clinical Use
1. Pirenzepine A. Treatment of hypertension
2. Atropine B. Reduction of salivary secretion
3. Metoprolol C. Treatment of gastric ulcers
4. Salbutamol D. Treatment of asthma
1-D, 2-C, 3-A, 4-B
1-C, 2-B, 3-D, 4-A
1-C, 2-D, 3-B, 4-A
1-A, 2-B, 3-C, 4-D
1-C, 2-B, 3-A, 4-D
Drugs which block the effects of activity in the sympathetic division of the autonomic nervous system are called?
adrenergic receptor agonists
sympathomimetics
sympathetic antagonists
parasympathetic antagonists
parasympathomimetics
Which of the following is/are feactures of the autonomic nervous system?
1. the control of secretions of some glands
2. the control of contraction of skeletal muscle
3. unconscious control of smooth muscle
1 only
1 & 2 only
1 & 3 only
2 only
2 & 3 only
In many respects the secretory cells of the adrenal medulla are analogous to which of the following classes of neurone?
parasympathetic postganglionic neurones
parasympathetic preganglionic neurones
unsympathetic neurones
sympathetic postganglionic neurones
sympathetic preganglionic neurones
Which of the following is NOT a likely consequence of increased activity of the sympathetic division of the ANS?
increase in blood glucose
dilation of pupils
constriction of airways
dilation of skeletal muscle blood vessels
increased heart rate
Which of the following statements is FALSE?
sympathetic preganglionic neurones are relatively short
parasympathetic preganglionic neurones are relatively long
sympathetic postganglionic neurones use AcH as their principal neurotransmitter
adrenergic receptors intracellular effects are produced by G-protein-mediated upregulation of 2nd messengers
adrenergic receptors are all metabotropic receptors
The synapse between preganglionic neurones and postganglionic neurones in ANS takes place in structures known as?
neuroeffector ganglia
autonomic ganglia
dorsal root ganglia
trigeminal ganglia
autonomic control centres
Which of the following does not occur in response to a bright light being directed into the eye?
constriction of pupil
relaxation of the constrictor muscles of iris
sensory neurones in retina detect increasing light intensity
activity increases in postganglionic parasympathetic neurones which form neuroeffetor junctions on constrictor muscles of iris
activity increases in preganglionic parasympathetic neurones in midbrain
Which of the following statements is TRUE?
preganglionic neurones of the sympathetic division are located in the brain stem
neuroeffector junctions applies ONLY to the junction between post neurones and effector organs in sympathetic division
parasympathetic post neurones have their cell bodies in either sympathetic chain ganglia or collateral ganglia
general characteristic of increased activity in sympathetic include attenuation of reproductive, digestive and urinary function
activity in parasympathetic division results in dilation of airways, pupils, and blood vessels to muscles
Which of the following statements about Ach in ANS is FALSE?
Ach receptors on postsynaptic membrane in terminal ganglia are muscarinic
Ach is found in axon terminals of preganglonic neurones of parasympathetic
nicotinic Ach receptor is an ionotropic receptor
Ach release from preganglionic in sympathetic division of ANS results in depolarisation of postganglionic neurones
muscarinic Ach receptors are present at neuroeffector junction of parasympathetic divison
