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PCAT Word List # PCAT/W65

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Description of immune system (noun: plural: immune systems)
the organs and cells that provide defense against tissue invasion or damage

Samples of immune system
The immune system includes the skin, membranes and immune cells e.g. the white blood cells.

Determination of immune system
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Description of shortness of breath (noun: no plural)
difficulty in respiration; rapid respiration

Samples of shortness of breath
Shortness of breath is normal during hard exercise.
Slowly growing internal lesions can produce great difficulties in the lung and the gut, causing shortness of breath and other problems.

Determination of shortness of breath
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Description of optimal (adjective)
the best

Samples of optimal
Enzymes work best under optimal conditions.



   
Description of shiver (verb: shivered; shivered; shivering)
to shake or tremble with cold, fear or emotion

Samples of shiver
He was shivering because he was feeling feverish.



   
Description of pharyngeal (adjective)
relating to the upper part of the throat

Samples of pharyngeal
Any pharyngeal disease may affect swallowing.



   
Description of alveolus (noun: plural: alveoli)
air sac in the lung; part of the jaw that supports the teeth; any small cavity

Samples of alveolus
Exchange of gases occurs in the alveolus.
Babies born preterm are likely to lack surfactant -- a material that covers the surface of the lung, lowering surface tension in the alveolus and thereby preventing lung collapse on breathing out.



   
Description of microbody (noun: plural: microbodies)
membranous vesicle that contains enzymes

Samples of microbody
A peroxisome is an example of a microbody.



   
Description of staphylococcus (noun: plural: staphylococci)
bacteria found on the skin and mucus membranes

Samples of staphylococcus
Staphylococcus can cause serious infections in open wounds.
The differential diagnosis of phlegmonous gastritis consits of bacterial infections especially staphylococcus aureus and including tuberculosis.

Determination of staphylococcus
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Description of electron shell (noun: plural: electron shells)
a main energy leve; a group of atomic orbitals with the same value of the principal quantum number n

Samples of electron shell
The number of electrons in the outer electron shell determines the properties of atoms.

Determination of electron shell
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Description of machine (noun: plural: machines)
a device that performs a task

Samples of machine
A washing machine cleans your clothes.



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