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WorksheetsMass Transport: The Heart and the Blood
Total questions: 12
Worksheet time: 6mins
The diagram shows a section through the mammalian heart. What is the name of the chamber labelled X?
Right ventricle
Left atrium
Right atrium
Left ventricle
Where in the heart is the sinoatrial node (SAN), which acts as the pacemaker, located?
At the apex of the heart
Beside the tricuspid valve between the right atrium and the right ventricle
Between the atria and the ventricles
In the wall of the right atrium
The diagram shows a section through a mammalian heart. Which of these situations would cause the valve labelled V in the diagram to open?
When pressure in the right atrium is greater than the pressure in the right ventricle.
When pressure in the pulmonary vein is greater than the pressure in the right ventricle.
When pressure in the right ventricle is greater than the pressure in the right atrium.
When pressure in the pulmonary artery is greater than the pressure in the right ventricle.
Name the blood vessel labelled C on the diagram of the heart.
Vena cava
Pulmonary vein
Aorta
Pulmonary artery
The graph shows dissociation curves for four different animals living in different environments. Which curve would represent the animal living in the most oxygen depleted environment?
A
B
C
D
Complete the equation for cardiac output:
Cardiac output =
Heart rate / stroke volume
Stroke volume / heart rate
Heart rate x stroke volume
Stroke volume + heart rate
Which type of blood vessel has the thickest muscle layer?
(a)
Which type of blood vessel contains valves to prevent back flow?
(a)
Which statement is incorrect?
Capillaries have a narrow lumen.
Capillaries are numerous and highly branched.
Capillaries have a thin elastic layer.
Capillaries have spaces in their lining to allow WBCs to move into tissues.
True or False?
The arterial end of a capillary is under high hydrostatic pressure.
True
False
Tissue fluid contains:
Glucose
Amino acids
Oxygen
Platelets
True or False:
Once lymph is form the fluid does not return to the blood.
True
False
