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Anatomy and Physiology
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Anatomy and Physiology
- Page 228
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
Chemistry for Physiology
The diffusion of water molecules across a cell membrane from the side where the solution concentration is more dilute to the side where it is greater is known as which of the following?
Osmosis
Filtration
Hydrolysis
Buffer action
This is a definition of osmosis.
Author:
rikazzz
Comment
Gastrointestinal System
What are the end-products of carbohydrate digestion?
Monosaccharides
Disaccharides
Glucose
Risaccharides
Glucose is one example of a monosaccharide, but there are others.
Author:
rikazzz
Comment
Skeleton and Joints
On what bone does the acetabulum occur?
Occipital
Humerus
Pelvis
Tibia
The acetabulum is the “socket” into which fits the ball of the femur.
Author:
rikazzz
Comment
Chemistry for Physiology
What may be stated about a chemical bond between atoms that is polar? They occur:
Between a metal and a non-metal atom
Between two non-metal atoms
Between two non-metal atoms that are different to each other
When the electrons in the bond are shared equally
Choice B is wrong if the two atoms are the same, e.g. if both are oxygen. Choice D is wrong as it implies a non-polar bond.
Author:
rikazzz
Comment
Respiratory System
Which structures are called bronchioles?
Respiratory passageways that have cartilage in their walls
The tubes that open from the left and right primary bronchi
The tubes that enter a lobule
The tubes that enter an alveolar sac
Terminal bronchioles supply air to a lobule. Respiratory bronchioles supply air to an alveolar sac. Secondary bronchi diverge from primary bronchi.
Author:
rikazzz
Comment
Electricity
What are the deflections seen on an electrocardiogram trace due to?
Pressure differences created by ventricular contraction
The closing and opening of heart valves
The de- and repolarisation of the cells of the myocardium
Variation in the electrical properties of oxygenated blood and deoxygenated blood as it moves through the heart
The P wave is due to the depolarisation of the atria, the QRS due to the depolarisation of the ventricles and the T due to the repolarisation of the ventricles.
Author:
rikazzz
Comment
Chemistry for Physiology
Choose the INCORRECT statement about buffer solutions.
The pH of a buffer does not change on addition of acid or base.
A buffer has two components which may be a weak acid and its salt.
A buffer has two components which may be a weak base and its salt.
pH of a buffer depends only on the ratio of its components.
The pH of a buffer does change, albeit very slightly, on addition of acid or base.
Author:
rikazzz
Comment
Cardiovascular System
What is “systolic pressure”?
The peak pressure in the blood due to contraction of the left ventricle.
The minimum pressure in the blood prior to contraction of the left ventricle.
It may be obtained by multiplying cardiac output by total peripheral resistance.
It is also known as mean arterial pressure.
Systole means “contraction” in Greek. So systolic pressure is the pressure produced by the contraction of the left ventricle. Choice C refers to mean arterial pressure, which is less than systolic pressure.
Author:
rikazzz
Comment
Gastrointestinal System
What is the process in the digestion of food molecules that produces their monomers called?
Polymerisation
Hydrolysis
Isomerisation
Deamination
Digestion is the process of making smaller molecules from polymers by the addition of H or OH from water. It is called hydrolysis.
Author:
rikazzz
Comment
Ionising Radiation
Which anatomical plane is usually displayed in a CT scan?
Transverse
Sagittal
Coronal
Longitudinal section
A cross-section or transverse slice is the usual image viewed.
Author:
rikazzz
Comment
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