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1 a) Please label the following diagram of the respiratory system. b) Describe the role of the diaphragm in the mechanism of breathing.

1 a) Trachea, bronchi, bronchioles, alveoli,diaphragm

b) It is a muscle important in the function of respiration

On inhalation, the diaphragm CONTRACTS and FLATTENS. Air is drawn INTO ...

Answered by Lauraa B. • Biology tutor

5085 Views

Describe how the hormone glucagon helps a healthy individual to maintain their blood glucose concentration correctly.

When an individual's blood glucose concentration rises above the normal range (approximately 70-100mmol/100cm^3), alpha cells in the Islets of Langerhans in the pancreas detect this change and release glu...

Answered by Tutor43765 D. • Biology tutor

3223 Views

Describe how the Cold War was renewed by President Reagan of the United States in the 1980s.

United States President Ronald Reagan renewed the Cold War in the early 1980's by regularly using strong anti-communist rhetoric, labelling the Soviet Union an 'Evil Empire' and significantly increasing m...

Answered by Harry S. • History tutor

8700 Views

What role does sight play in ‘King Lear’?

The theme of sight and seeing in ‘King Lear’ is very prevalent. Both Lear and Gloucester demonstrate an inability to see their children for who they really are, which plays a great part in their demise. T...

Answered by Rachael D. • English Literature tutor

4729 Views

How to find the stationary point of y= x^2-108x^(1/2)+16 and determine the nature of the stationary point?

a). Find stationary point: Stationary point is the point at which the gradient equals zero. So first we must find the gradient and the set it to zero and solve: dy/dx= 2x-54x^(-1/2); now we set this to ze...

Answered by Dylan S. • Maths tutor

4774 Views