3.
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Your ears contain receptors sensitive to sound. But what other receptors can be found there? |
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[ ] |
Position |
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Light |
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Smell |
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All three of the above |
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4.
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Which two organs comprise the central nervous system? |
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[ ] |
Brain and spinal cord |
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Brain and eyes |
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Eyes and spinal cord |
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Skin and bones |
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5.
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Sometimes, when people have an accident and break their back they lose the use of their legs. Why does this happen? |
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[ ] |
The part of the brain that controls their legs is damaged |
[ ] |
They lose the blood supply to their legs |
[ ] |
The muscles at the top of the legs become disconnected from the backbone |
[ ] |
The spinal cord is severed and signals from the brain can't reach their legs |
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6.
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Nerve cells of the nervous system that are responsible for converting external stimuli from the organism's environment into electrical impulses that can be transmitted to the brain are called what? |
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[ ] |
Sensory neurons |
[ ] |
Motor neurons |
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Relay neurons |
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Synapses |
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7.
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A group of students did an experiment about taste. They were given salt, sugar, coffee, vinegar and lemon solutions to taste through a straw but they were blindfolded and had to hold their nose firmly closed. They had difficulty identifying the five flavours. Why? |
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[ ] |
Sight is important for taste |
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They weren't allowed to touch the containers with the solutions in |
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The straw takes away the taste |
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Identifying a flavour requires both smell and taste |
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8.
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Which of the following are effectors? |
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[ ] |
Eyes and ears |
[ ] |
Teeth |
[ ] |
Bones and blood |
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Muscles and glands |
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9.
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Which of the following correctly describes the order of the nerve pathways? |
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[ ] |
Receptor, motor neuron, CNS, sensory neuron, effector |
[ ] |
Effector, sensory neuron, motor neuron, CNS, receptor |
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Receptor, sensory neuron, CNS, motor neuron, effector |
[ ] |
Receptor, CNS, sensory neuron, motor neuron, effector |
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10.
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In which section of the brain are voluntary muscle messages processed? |
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[ ] |
Cerebellum |
[ ] |
Hypothalamus |
[ ] |
Frontal lobe |
[ ] |
Medulla |
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