Week 1 Flashcards
Anatomy =
structure
Physiology =
function
molecules
atoms formed together
Organelle
Molecules formed together
Cell
Organelles formed together
Tissue
Same type of cell formed together
Organ
Made up of tissue
System
Made up of organs working together
homeostasis
Maintenance of relatively stable internal conditions despite exterior environment.
Negative feedback system
reverses response; if body temp drops to 36 degrees, body shivers then REVERSES back to 37 degrees.
Positive feedback system
enhances the original stimulus; blood vessel cut on the thumb, cells come to the area to form a plug to stop bleeding.
pharmacology
study of medicine, how we use it and the effect on the body.
drug
medicine that has physiology impact on tissue cells
therapeutic effect
desirable and beneficial outcome, consequence of medicine
drug allergy
stimulates immune system
drug interaction
take more than one drug that may interfere with another and worsen the condition
drug abuse
continually consuming drugs
drug dependence
constantly needing drug to function
dose of drug
achieves desired effect without harm
bioavailability
drug goes into blood and becomes available to all tissue cells
tolerance
decreases response of dose of drug
antagonist
drug that blocks receptor to activate
Agonist
drug that initiates receptor to activate
how drugs work
drug molecule must inflict on the cell to produce a pharmacological response, either mimic or block.
mimic
mimic chemicals that are already in body eg, contraceptive pill
block
block drug chemical reaction
sublingual
under tongue, rapid absorption to bloodstream
rectal
when drug tastes horrible
intramuscular injection
can administer large amount of drug, fast absorption
IV drip
directly into blood
oral
swallow tablet/liquid
inhalation
if someone has asthma, like taking a puffer
therapeutic effect
desired effect of a medical treatment, only give dose of drugs between therapeutic range
pharmacokinetics
what body does to the drugs
ADME
absorption through small intestine, distribution throughout body, metabolised, excreted.