Circulatory system; Structure of heart

Identify

• Left atrium
• Right atrium
• Left ventricle
• Right ventricle

Identify

• Pulmonary veins
• Pulmonary artery
• Aorta
• Vena cava

Identify

• Left atrium
• Right atrium
• Left ventricle
• Right ventricle

The mammalian heart has ___ chambers.

• 1

• 2

• 3

• 4

An open circulatory system is one that has:

• no valves present

• no heart to pump the fluid

• no vessels at all

• no distinction between blood and tissue fluid

The ____________ carries blood throughout the body;

the ____________ carries blood only to and from the

lungs.

• systemic circuit; pulmonary circuit

• pulmonary circuit; systemic circuit

• venous circulation; arterial circulation

• arterial circulation; venous circulation

Where is the heart beat initiated?

• right atrium

• right ventricle

• left atrium

• left ventricle

Which one of the following is found in the wall of both arteries and capillaries?

• connective tissue

• smooth muscle cells

• endothelial cells

• elastic fibres

Where is the blood in 3 coming from?

• All over the body
• The upper half of the body, head and arms
• The lower half of the body, legs and abdomen
• The lungs

Which number is the pulmonary artery?

• 4
• 5
• 6
• 8