Physiology

Question 1

What is haemoglobin?

Answer 1

A red protein that is responsible for transporting oxygen to the blood
(Molecule comprises of 4 subunits)

Question 2

What is oxyhaemoglobin?

Answer 2

A red substance formed by the combination of haemoglobin and oxygen (in oxygenated blood)

Question 3

What does the sympathetic nervous system do?

Answer 3

Releases hormones that accelerate the heart rate (s for speed up)

Question 4

What does the parasympathetic nervous system do?

Answer 4

Releases hormones to slow the heart rate down (para for paralysed)

Question 5

What do chemoreceptors do?

Answer 5

Detect the changes of carbon dioxide levels in the blood (c for carbon)

Question 6

What do baroreceptors do?

Answer 6

They detect changes of blood pressure levels in the heart

Question 7

What do the proprioceptors do?

Answer 7

They detect changes in the position or movement of the body

Question 8

What order is the cardiac conduction system?

Answer 8

Sinoatrial node (SA)
Atrioventricular node (AV)
Bundle of his
Bundle of branches
Purkinye fibres

S 
A
B 
B
P

Question 9

What is myoglobin?

Answer 9

It is the oxygen and iron binding protein found in the muscle tissue