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WorksheetsNervous system
Total questions: 10
Worksheet time: 10mins
The term stimulus refers to
the ability of an organism to respond.
the extent of changes in the surrounding.
a change in the environment.
a change in the pH of the water.
Impulses are conveyed from the central nervous system to the muscles by a/an
efferent neurone.
afferent neurone.
sensory neurone.
interneurone.
Pick out the WRONG statement
concerning the function of the nerve cell.
It can convey impulses in both directions.
It does not weaken the impulse passing through it.
It conveys messages in the form of electrical impulses.
It conveys impulses to the effector organs.
Which one of the following neurones conveys impulses from the afferent neuron to the efferent neuron?
Axon.
Dendron.
Synapse.
Interneuron.
The part of the brain labelled Z controls the center which serves all of the following except
Cardiac inhibition.
Visual interpretation center.
Respiratory center.
Vaso contraction center.
The structure above is a type of neurone. Name the neurone
Interneurone.
Afferent neurone.
Efferent neurone.
Free neurone.
The figure above shows a cross section of a mammalian spinal cord. The part which contains neurons that transmit impulses from the brain to the effector is
I only
II only.
III only.
IV only.
The figure below shows the structure of
the synaptic knob. What is P and its function?
Mitochondrion: Generates energy to send impulse
across the synapse.
Vesicle: Secretes neurotransmitter.
Mitochondrion: Sends impulse to the cell body.
Vesicle: Sends impulse to the terminal of
the synaptic konb.
Nerve impulses travel from
I V to Z.
II Z to X.
III X to V.
IV Y to W.
I only.
I and II only.
I and III only.
IV only.
Effectors which are beyond voluntary control include
I triceps muscles.
II iris muscles.
III salivary glands.
IV ileum muscles.
I, II and III only
II, III and IV only.
III and IV only.
I, II, III and IV only.
