Question

1.The thoracolumbar division  

A.Contains both sympathetic and parasympathetic pathways

B.Refers to the sympathetic pathway

C.Refers to the parasympathetic pathway

D.Refers to voluntary control of target organs

2.In an autonomic pathway, which of the following components is partially in the CNS and partially in the PNS?

A.The postganglionic neuron

B.The preganglionic neuron

C.The ganglion

D.All of these

3. Which of the following mechanisms can be used to control the action of the visceral effector organs?

Autonomic innervation

Hormonal regulation

Local regulation

All of these

4.Splanchnic nerves of the sympathetic division

Synapse in the collateral ganglia

Synapse in the sympathetic chain of ganglia

Synapse in the spinal cord

Have only one synapse and that is in the target organ

5. The symapthetic system increases heart rate and the parasympathetic system decreases heart rate. This is an example of ____________ effects of the two systems.

Complementary

Synergistic

Cooperative

Antagonistic

6.The parasympathetic pathway utilizes some of the cranial nerves. Which one of the following pairs of cranial nerve and parasympathetic function is correctly matched?

Facial nerve : parotid gland

Oculomotor nerve (III) : visual accommodation & pupil size

Vagus nerve (X) : palate and lacrimal glands

Glossopharyngeal nerve (IX) : heart and lungs

7.Which of the following actions is associated with the parasympathetic system?

Tonic regulation of blood vessels

Fight or flight response

Mass activation

Muscarinic receptors at the effector cells

8.Which of the following occurs when one sympathetic preganglionic neuron synapses on several postganglionic neurons?

Cooperation

Convergence

Divergence

Inhibition

9.

When stereocilia are bent toward the kinocilium, the cell membrane will be __________.

Releasing a lower amount of neurotransmitter

Will stop releasing neurotransmitter

Depolarized

Hyperpolarized

Answer 1

1. B.Refers to the sympathetic pathway

Explanation:symptomatic nervous system is also called Thoracolumbar Outflow tract. As it's preganglionic fibres ralay in the thoracic T1 to T12 segment of spinal cord and L1 and L2 of lumbar segment. (T1-L2). Here they form sympathetic ganglion chain.

2. B.The preganglionic neuron

Explanation: Axoninc part of preganglionic neuron lies in PNS while body lies in CNS.

3. D) All of these

4. B) Synapse in the sympathetic chain of ganglia

Explanation. :symptomatic nervous system is also called Thoracolumbar Outflow tract. As it's preganglionic fibres ralay in the thoracic T1 to T12 segment of spinal cord and L1 and L2 of lumbar segment. (T1-L2). Here they form sympathetic ganglion chain.

5. D) Antagonistic

Explanation: Antagonistic effects are opposite effects.