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Anatomy and Physiology
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Anatomy and Physiology
- Page 6
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 twisting of a polypeptide chain into a characteristic shape such as a helix is an example of which of the following?
Primary structure
Secondary structure
Tertiary structure
Quaternary structure
The shape of the protein molecule is the tertiary structure of the protein.
Author:
rikazzz
Comment
Ionising Radiation
Why should the use of staff of child-bearing age to nurse patients with implanted radioactive sources be avoided?
Because such sources are highly radioactive.
Because there is a risk of damage to the gametes of the staff.
Because younger people are more at risk of developing radiation-induced cancers.
Because implanted sources cannot be adequately shielded.
If it is possible to reduce risk to staff by assigning them to other duties, then it should be done.
Author:
rikazzz
Comment
Respiratory System
The walls of the trachea are held open by which of the following?
Nerve impulses
Rings of cartilage
Fine bones
Smooth muscle contractions
Bands of cartilage shaped like a “C” keep the trachea rigid and open.
Author:
rikazzz
Comment
Reproductive System
Where should fertilisation of the egg by a sperm occur?
In the cervix
In the uterus
In the fallopian tube
In the abdominal cavity between ovary and fallopian tube
Fluid from the “peg” cells of Fallopian tube assist in the capacitation of sperm allowing them to fertilise the egg.
Author:
rikazzz
Comment
Renal System
What name is given to the blood vessel that drains blood from the glomerulus after filtration?
Vasa recta
Afferent arteriole
Efferent arteriole
Efferent vein
Efferent means outgoing.
Author:
rikazzz
Comment
Nervous System
The change in vision that occurs with ageing is called:
Protanopia
Hyperopia
Deuteranopia
Presbyopia
“Presby-” means elderly or old. Choices A and C refer to forms of “colour blindness”.
Author:
rikazzz
Comment
Nervous System
What is the name of the nerve cell structure that carries incoming impulses towards the cell?
Dendrite
Axon
Cell body
Ganglion
Dendrites receive incoming (efferent or stimulating) impulses.
Author:
rikazzz
Comment
Renal System
The following blood vessels are found in the kidney. Which list has the vessels in the correct order of blood flow?
Glomerulus, efferent arteriole, vasa recta, arcuate arteries
Glomerulus, afferent arteriole, peritubular capillaries, interlobular vein
Peritubular capillaries, vasa recta, afferent arteriole, arcuate arteries
Renal artery, arcuate arteries, glomerulus, interlobular vein
The efferent and afferent arterioles flow out from and into, respectively, the glomerulus, so the glomerulus is misplaced. In choice C, the afferent arteriole should precede the peritubular capillaries.
Author:
rikazzz
Comment
Nervous System
One of the following is not a meninx. Which one?
Pia mater
Alma mater
Arachnoid mater
Dura mater
Alma mater is the university that you attended.
Author:
rikazzz
Comment
Body Temperature, Energy and Heat Loss
What may be said about the amount of energy in the form of infrared electromagnetic waves that is radiated from our bodies?
It depends on our body’s temperature.
It would be greater if our layer of subcutaneous fat was thicker.
It may be increased by contact between the body and an object with tem-perature lower than the body’s temperature.
It may be increased by exposing more bare skin.
The amount of energy radiated as infrared depends on the body temperature (E ∝ T
4
).
Author:
rikazzz
Comment
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