Do you know it by Heart?

Artificial heart valves are often put in (the yellow one). Which valve has been replaced?

• Tricuspid

• Semilunar

• Bicuspid

• Mitral

Choose the true statement.

• Pulmonary arteries carry deoxygenated blood to the right atrium

• Pulmonary arteries carry oxygenated blood to the left ventricle

• Pulmonary arteries carry deoxygenated blood from the right ventricle

• Pulmonary arteries carry oxygenated blood from the left ventricle

Choose the corazón sincero

• 
• 
• 
• 

Choose the true statement(s)

• Carbonic anhydrase changes H₂CO₃ into HCO₃^- + H⁺

• HHb forms in the capillaries supplying the tissues

• pH drops due to H₂CO₃ splitting into H₂O and CO₂ gas

• Bohr shift happens mostly in the alveoli

Which is most confusing?

• carbaminohaemoglobin

• carboxyhaemoglobin

• carbonic anhydrase

• oxygen dissociation curve

• all of the above

Fish have a

• Double open circulatory system

• Double closed circulatory system

• Single closed circulatory system

• Single open circulatory system

It is:

• a neutrophil

• a monocyte

• a macrophage

• a lymphocyte

Choose the best description of this artery

• Many collagen fibres in tunica adventitia and many smooth muscle fibres in the media

• Many smooth muscle fibres in tunica adventitia and many elastic fibres in the intima

• Many elastic fibres in tunica adventitia and many collagen fibres in the intima

• Many elastic fibres in tunica intima and many smooth muscle fibres in the media

2 statements are correct. Which two ?

• Tissue fluid has more white cells than lymph

• Lymph has fewer plasma proteins than plasma

• Plasma, lymph and tissue fluid can all contain white cells

• Plasma can leak out of the small arteries, forming tissue fluid

The heart beats without having to be told to. This is because the heart has a natural pacemaker.

Recall what this is called.

• SA node

• AV node

• Atria

• Aorta