Baroreceptors and chemoreceptors

Question 1

What are baroreceptors?

Answer 1

Sensors composed of specialized nerve tissue found in the internal carotid arteries and aortic arch

They detect changes in blood pressure.

Question 2

What do baroreceptors detect?

Answer 2

Changes in blood pressure

They play a key role in regulating cardiovascular function.

Question 3

What happens if blood pressure falls?

Answer 3

The body compensates by:
* Constricting peripheral blood vessels
* Increasing heart rate
* Increasing the force of myocardial contraction

These responses are orchestrated by the sympathetic division.

Question 4

What type of response is triggered by a fall in blood pressure?

Answer 4

Sympathetic or adrenergic response

This response involves the sympathetic nervous system.

Question 5

What occurs if blood pressure rises?

Answer 5

The body decreases sympathetic stimulation and increases parasympathetic response

This is known as a parasympathetic or cholinergic response.

Question 6

What type of receptors detect changes in pH, oxygen, and carbon dioxide levels in the blood?

Answer 6

Chemoreceptors

These are located in the internal carotid arteries, aortic arch, and medulla.

Question 7

Fill in the blank: Baroreceptors are also known as _______.

Answer 7

pressoreceptors

This term reflects their function in sensing pressure changes.