Which row in the table shows how the autonomic nervous system controls an increase in heart rate?
| Branch of autonomic nervous system | Neurotransmitter |
|-----------------------------------|------------------|
| A | acetylcholine |
| B | noradrenaline |
| C | noradrenaline |
| D | acetylcholine | - Scottish Highers Human Biology - Question 10 - 2017
Question 10
Which row in the table shows how the autonomic nervous system controls an increase in heart rate?
| Branch of autonomic nervous system | Neurotransmitter |
|-------... show full transcript
Worked Solution & Example Answer:Which row in the table shows how the autonomic nervous system controls an increase in heart rate?
| Branch of autonomic nervous system | Neurotransmitter |
|-----------------------------------|------------------|
| A | acetylcholine |
| B | noradrenaline |
| C | noradrenaline |
| D | acetylcholine | - Scottish Highers Human Biology - Question 10 - 2017
Step 1
Identify the correct branch of autonomic nervous system for heart rate increase
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Answer
The sympathetic branch of the autonomic nervous system is primarily responsible for increasing heart rate. It activates the 'fight or flight' response, which prepares the body for a quick reaction.
Step 2
Determine the correct neurotransmitter involved
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Answer
The neurotransmitter involved for the sympathetic nervous system that increases heart rate is noradrenaline (also known as norepinephrine). This neurotransmitter helps to stimulate the heart to beat faster.
Step 3
Select the correct option from the table
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Answer
From the given options in the table, the correct row that demonstrates this is option C: sympathetic with noradrenaline.
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