L17 Divisions of the Nervous System

Description

• Understand the types of info transmitted and how the nervous system is divided based on these • Understand the anatomical organisation of the somatic efferent division of the nervous system • Understand how neurons communicate with effector cells • Understand the anatomical oraganisation of the autonomic nervous system • Understand how autonomic neurons communicate with effector cells • Understand the differences between the sympathetic and parasympathetic
Mer Scott
Quiz by Mer Scott, updated more than 1 year ago
Mer Scott
Created by Mer Scott over 7 years ago
15
1

Resource summary

Question 1

Question
The somatic nervous system controls efferent, [blank_start]voluntary[blank_end] motor control, and afferent sensory information [blank_start]we are aware of[blank_end]. Autonomic efferent muscle control is [blank_start]involuntary and unconscious[blank_end], and afferent sensory information [blank_start]we are unaware of[blank_end].
Answer
  • voluntary
  • we are aware of
  • involuntary and unconscious
  • we are unaware of

Question 2

Question
Choose the incorrect statement about the somatic motor efferent division.
Answer
  • It effects only skeletal muscle.
  • There is only one axon between the CNS and effector, and it is unmyelinated.
  • The neuronal cell body is within the spinal cord.

Question 3

Question
One neuron can never innervate more than one muscle cell.
Answer
  • True
  • False

Question 4

Question
Choose the correct statements about the autonomic efferent motor division.
Answer
  • There are 2 neurons between the CNS and the effector.
  • Both neurons have their cell bodies in the CNS.
  • Both neurons have their axons in the PNS.
  • Effectors include smooth muscle, cardiac muscle, glands, and adipose tissue

Question 5

Question
Choose the false statement about the autonomic nervous system.
Answer
  • The preganglionic autonomic motor neuron is myelinated.
  • The postganglionic neuron is unmyelinated.
  • The neurotransmitter released at the synapse of the preganglionic neuron to the postganglionic neuron can be ACh or norepinephrine.
  • The neurotransmitter released at the synapse of the postganglionic neuron to the effector can be ACh or norepinephrine.

Question 6

Question
Norepinephrine is a more concentrated neurotransmitter than noradrenaline.
Answer
  • True
  • False

Question 7

Question
The autonomic nervous system has one afferent pathway, and two efferent pathways.
Answer
  • True
  • False

Question 8

Question
Choose the correct statement.
Answer
  • The parasympathetic nervous system can also be called the thoracolumbar nervous system.
  • The sympathetic nervous system can also be called the craniosacral nervous system.
  • The preganglionic neuron of the sympathetic division is short, while the postganglionic neuron is long.
  • The postganglionic neuron of the parasympathetic nervous system is long and synapses in the chain ganglia.

Question 9

Question
The sympathetic chain ganglia has 21-23 pairs.
Answer
  • True
  • False

Question 10

Question
There are [blank_start]3[blank_end] main collateral ganglia, which contain [blank_start]preganglionic[blank_end] axons that did not make synapses in [blank_start]chainganglia[blank_end].
Answer
  • 3
  • 2
  • preganglionic
  • postganglionic
  • chain ganglia
  • their effectors
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