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Anatomy and Physiology
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Anatomy and Physiology
- Page 86
Organisation of the Body
41
Cells and Tissues
129
Measurement, Errors, Data and Unit Conversion
45
Integument
65
Homeostasis
0
Skeleton and Joints
100
Muscles
98
Gastrointestinal System
140
Endocrine System
102
Renal System
117
Cardiovascular System
365
Respiratory System
130
Nervous System
292
Reproductive System
72
The Physics of Waves: Light Waves, Sound Waves and Ultrasound
62
Ionising Radiation
92
Electricity
35
Biomechanics
58
Body Temperature, Energy and Heat Loss
70
Chemistry for Physiology
279
Show/Hide Answers
Renal System
What is indicated if the specific gravity of a patient’s urine is high?
The patient has kidney disease.
The urine’s concentration is high.
The patient is well hydrated.
The urine density is low.
High urine concentration corresponds to a high SG.
Author:
rikazzz
Comment
Gastrointestinal System
Which of the functions below is NOT performed by the liver?
Production of glucagon
Synthesis of lipoproteins to transport fatty acids
Deamination of amino acids to form keto acids
Conversion of noncarbohydrate molecules to glucose
Glucagon is a hormone that is produced by the pancreas.
Author:
rikazzz
Comment
Renal System
What is the kidney tubule’s response to a rise in blood pH?
Bicarbonate ions are created from carbonic acid and absorbed into the blood.
Hydronium ions are secreted into the filtrate, where they are buffered by bicarbonate ions in the filtrate.
Bicarbonate ions are secreted into the filtrate, while hydronium ions are absorbed from the filtrate into the blood.
Hydronium ions are secreted into the filtrate, while bicarbonate ions are absorbed from the filtrate into the blood.
A rise in blood pH means it is getting more alkaline. That is there is too much bicarbonate in the blood. To counter this, some bicarbonate ions are secreted into the filtrate, while some hydronium ions are absorbed from the filtrate into the tubule cells.
Author:
rikazzz
Comment
Biomechanics
What is one of the roles of the pulley in a traction system?
To supply the counter-traction
To enable the vector addition of forces
To change the direction of the traction force
To prevent the hanging masses from resting on the floor
Pulleys do change the direction of the traction force so that the downward pull of the hanging mass can be redirected to a direction parallel (say) to a leg.
Author:
rikazzz
Comment
Cardiovascular System
The intravenous cannula that will give the largest flow rate is:
0.7 mm diameter 32 mm length
0.7 mm diameter 19 mm length
1.8 mm diameter 32 mm length
1.8 mm diameter 19 mm length
The largest diameter gives the largest flow rate and the shortest length provides the lesser resistance to flow.
Author:
rikazzz
Comment
Biomechanics
Which of the following pairs of quantities does NOT contain a scalar quantity and a vector quantity?
Mass and weight
Traction and counter-traction
Speed and velocity
Distance and displacement
Traction and counter-traction are both forces so are both vector quantities.
Author:
rikazzz
Comment
Measurement, Errors, Data and Unit Conversion
Which of the following numbers has four significant figures?
3300.0
37.60
0.008
0.0540
Any zero to the left of the first non-zero digit – when approached from the left – are not significant (zeros on the right are).
Author:
rikazzz
Comment
Cardiovascular System
An increase in which of the following would NOT produce an increase in cardiac output?
Heart stroke volume
Heart rate
Peripheral resistance
Venous return
Increasing peripheral resistance would not increase CO unless there was a compensating increase in BP.
Author:
rikazzz
Comment
The Physics of Waves: Light Waves, Sound Waves and Ultrasound
Waves have properties (such as wavelength, frequency, period, speed, amplitude, intensity, direction and phase) which can be measured. Some of these properties are related. That is, if one of a pair of related properties is known, then the other can be worked out. Which of the following lists contain properties that are all unrelated to each other?
Amplitude, period, intensity, phase
Frequency, amplitude, period, wavelength
Direction, speed, amplitude, phase
Phase, wavelength, speed, frequency
Frequency and wavelength are related, as are amplitude and intensity.
Author:
rikazzz
Comment
Cardiovascular System
Cardiac output does NOT depend on one of the following, which one?
The rate of venous return to the heart
The blood viscosity
The volume flow rate through the circulatory system
The pressure drop (between start of aorta and start of capillaries)
This is the required answer as CO is the same thing as volume flow rate.
Author:
rikazzz
Comment
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