Receptors and Transportation of Oxygen

Question 1

What does the proprioceptor detect?

Answer 1

Movement of the body

Question 2

What does the baroreceptor detect?

Answer 2

Blood pressure in the arterial wall

Question 3

What are the two stages of oxygen transport?

Answer 3

1. At the lungs, haemoglobin becomes saturated with oxygen and forms oxyhaemoglobin
2. At the muscle site, the reaction is reversible. Oxygen dissociates from haemoglobin at the muscle site

Question 4

Role of myoglobin

Answer 4

• Located in muscle cells only
• Role is to store oxygen, ready for exercise
• Becomes saturated with oxygen as it has a very high affinity for oxygen