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Questions and Answers
What happens when irritants are detected in the respiratory tract?
What happens when irritants are detected in the respiratory tract?
- Protective reflexes such as coughing and sneezing are activated (correct)
- The medulla oblongata is activated to initiate inspiration
- The pyramidal tracts cross from one side to the other
- The respiratory centre stimulates the diaphragm and intercostal muscles
What is the function of the pyramidal tracts?
What is the function of the pyramidal tracts?
- To initiate inspiration
- To control the rate and depth of respiration
- To control voluntary movement of skeletal muscles (correct)
- To activate protective reflexes
What is the reticular formation?
What is the reticular formation?
- A pathway that conducts nerve impulses to the spinal cord
- A group of sensory organs
- A collection of neurons in the brain stem (correct)
- A part of the cerebral cortex
What is the function of the reticular activating system (RAS)?
What is the function of the reticular activating system (RAS)?
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Which area in the brainstem controls the rate and depth of respiration?
Which area in the brainstem controls the rate and depth of respiration?
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Which part of the brain is responsible for sensory nerves crossing from one side to the other?
Which part of the brain is responsible for sensory nerves crossing from one side to the other?
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What is an example of selective awareness mediated by the RAS?
What is an example of selective awareness mediated by the RAS?
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Where is the cerebellum located in the brain?
Where is the cerebellum located in the brain?
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What is the surface of the cerebellum made up of?
What is the surface of the cerebellum made up of?
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