Hypoxia&CO poisoning
The effects of CO poisoning increase or decrease with height?
Increase
What protein carries oxygen around the body
Synonym for nerve cells?
Neurons
What happens to the pupil when focusing on object at distance?
Becomes larger
What type of hypoxia is caused by altitude increase?
Hypoxic Hypoxia
Which blood cells fight infections?
White blood cells
Central nervous system consist of 2 things.
Name those 2 things
Brain and spinal cord
Photopic vision is attained by....
Cones
Indifferent stage happens at what altitude?
6000ft and below
If the pressure of a given gas remains constant, what will happed to its volume if the temperature decreases?
Decreases
Nerves that send instructions from the CNS to the organs are called...
Motor nerves
What happens to the lens when it focuses on an object at a distance?
It becomes flat
Which type of hypoxia is due to lack of ability of the blood to transport oxygen?
Anemic hypoxia
What happens to the volume of a given gas if it is compressed at constant temperature?
Peripheral Nervous system consist of...
(2 things)
Motor nerves and Sensory nerves
What is being described?
short sightedness
eyeball is longer
image forms is front of the retina
hard to see distant objects clearly
Concave lenses
Myopia
Greatly toxic
The effects are cumulative
It is odourless and colourless
What is being described?
Carbon Monoxide
Composition of gases in the atmosphere?
78% nitrogen, 21%oxygen and 1% other gases
Peripheral Nervous System is divided into to nervous systems.
What are they called?
Somatic Nervous System
Autonomic Nervous System
The order of light entering the eye
Cornea
Pupil
Lense
Vitreous humour
Retina
Optic nerve