Blood and Immunity

what parts of the body does the ascending aorta serve ?

• Head, neck, and arms.

• Arteries

• circulatory

• head

what is the blood flow through the heart?

• circulatory

• Superior and inferior vena cava's - right atrium - tricuspid valve - right ventricle - right and left pulmonary arteries - lungs - right and left pulmonary veins - left atrium - mitral valve -left ventricle - aorta

• neck

What type of blood vessel has a pulse?

• semi-lunar valves

• Arteries

• left ventricle

• aorta

which chamber produces the highest pressure in the blood?

• aorta

• right pulmonary artery

• left ventricle

At the instant following the second heart sound, which heart valves are open?

• Head, neck, and arms.

• both are closed

• they stay open

• they don't know

which heart valves are NOT actively close by the contraction of muscular structure?

• endocardium

• semi-lunar valves

• papillary muscles

How can the circulatory system promote heat retention/ conservation such as on a cold day?

• Vasoconstriction

• skin

• Endocardium

In terms of being opened and closed, what is the state of the mitral and tricuspid valves at the end of the first heart sound?

• Both are closed

• there are open

• they open and close

Which structure is referred to as the pacemaker of the heart?

• dendritic

• SA node - sinoatrial node

• immune cells

Name three main antigen presenting cell types.

• Innate, adaptive and passive

• T and B cell

• B, macrophages and dendritic cells