Transport in Humans (circulatory system)

The blood vessel that carries deoxygenated blood and has a thick, muscular wall is the ____________

• pulmonary vein

• vena cava

• aorta

• pulmonary artery

Valves in veins are important because they

• decrease the blood pressure

• increase speed of blood flow

• slow down the blood flow

• stop the backflow of blood

Valve that blood is forced through from right ventricle into pulmonary arteries.

• semi-lunar valve

• aortic valve

• mitral valve

• tricuspid valve

Which chamber of the heart is supposed to be the most muscular?

• right atrium

• left atrium

• right ventricle

• left ventricle

Vessels that send blood back to the heart are called

• veins
• arteries
• capillaries
• muscle

Vessels that send blood away from the heart are called

• arteries
• veins
• capillaries
• muscles

What carries the oxygenated blood from the lungs to the left atrium of the heart?

• vena cava 
• aorta
• pulmonary vein
• pulmonaryartery

The two chambers of the heart with thin walls that collect blood from the major veins and empty it into the larger, more muscular chambers.

• aorta
• atria
• ventricles
• lungs

Name this part.

• Left ventricle
• Pulmonary artery
• Right atrium
• Pulmonary veins

  Compared to arteries, veins 

• have a pleated endothelium.
  
• have thinner walls.
  
• have more smooth muscle in their tunica media. 
• hold their shape better when cut. 

Tags

NGSS.MS-LS4-2