Circulation And Blood

Question 1

Agglutination

Answer 1

Anti-bodies bind to a corresponding antigen to make it bigger so a phagocyte can identify it and eat it

Question 2

Arteries

Answer 2

Carries blood away from the heart

Thick muscular walls composed of three layers

Carry, oxygen rich blood - except the pulmonary artery

Question 3

Capillaries

Answer 3

The tiniest capillaries are so narrow, the only allow one RBC through at a time
Diffusion of substances a occur here

Question 4

Veins

Answer 4

Carries blood back to the heart
Blood pressure is lower because blood is returned to the heart instead of just leaving it

Has valves to keep the blood moving in the right direction

The contraction of school little muscles also helps to push and squeeze blood back to the heart

Question 5

Which side the heart has oxygen rich blood and which does not

Answer 5

Left side is oxygen rich while the right side is oxygen poor

Question 6

What is the pacemaker of the heart

Answer 6

The pacemaker of the heart is the sinoatrial node - it is a group of specialized nerve cells located where the vena cava opens up to the right atrium

Question 7

Diastole

Answer 7

Part of cardiac cycle where heart relaxes

DUB sound

The anti-ventricular valves open so blood can fill the ventricles

Question 8

Systole

Answer 8

Part of cardiac cycle where the heart contracts - either the atria or ventricles

LUB sound, anti-ventricular valves close

The semi lunar valve’s are open so blood can leave the heart

Question 9

What is an ECG/EKG

Answer 9

A test that checks for problems with the electrical activity of your heart
And EKG shows the hearts electrical activity as a line tracing on papers
The spikes and dips in the tracings are called waves