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WorksheetsWeek 11
Total questions: 21
Worksheet time: 5hrs 15mins
The net osmotic pressure is equal at both the arterial and the venous ends of the capillary
True
False
Which end of a capillary has the greatest hydrostatic pressure?
Arterial end
Venous end
It is equal throughout
What causes blood plasma to become tissue fluid?
Hydrostatic pressure forces it out of the arterial end of the capillary
Hydrostatic pressure forces it out of the venous end of the capillary
High water potential in the capillary relative to tissues causes osmosis
High osmolarity in the capillary relative to the tissues causes diffusion
At which end of the capillary is tissue fluid reabsorbed?
Arterial end
Venous end
What causes the reabsorption of tissue fluid?
Low osmotic pressure in the tissues combined with low hydrostatic pressure in the capillary
Low osmotic pressure in the tissues combined with high hydrostatic pressure in the capillaries
High osmotic pressure in the tissues combined with high hydrostatic pressure in the capillary
High osmotic pressure in the tissues combined with low hydrostatic pressure in the capillary
What happens to tissue fluid that is not reabsorbed?
It stays in the tissues and causes swelling
It is eventually reabsorbed by the capillary
It is absorbed by lymph vessels and returned to the blood via the vena cava
It is absorbed by lacteals in the ileum
A mechanism of venous return that involved the vessels being squeezed is
gravity
muscle pump
respiratory pump
pocket valves
In which direction does blood flow through a capillary bed?
Vein end -> Arteriole end
Venule end -> Arteriole end
Arteriole end -> Venule end
Artery end -> Venule end
What type of blood vessel is shown in figure number 2?
vein
artery
capilary
aorta
The diagram shows three types of blood vessels, 1, 2 and 3.
Which option describes features of each vessel?
A
B
C
D
The diagram shows the longitudinal section of a blood vessel.
Which of the following combinations of the structures concerned enables blood to flow
from W to Z?
A
B
C
D
Which respiratory muscles work during inspiration?
Diaphragm
Internal intercostals
External Intercostals
Suggest two things that happen to the lungs during inhalation (breathing in).
Volume of the lungs decreases
Volume of the lungs increases
Pressure in lungs decreases
Pressure in the lungs increases
Pressure in the lungs remains the same
Suggest two things that happen to the lungs during exhalation (breathing out).
Volume of the lungs decreases
Volume of the lungs increases
Pressure in lungs decreases
Pressure in the lungs increases
Pressure in the lungs remains the same
What is the main way in which carbon dioxide is transported in the blood?
attached to hemoglobin
dissolved in blood plasms
as bicarbonate ions
as carbonic acid
Impulses are sent to this part of the brain to control the rate and depth of breathing
(a)
