(Unit 1) Vocabulary Flashcards
anomaly
abnormal
-occurs in 30% of the population
-examples of anatomical variation: missing organs, more organs than normal
situs inversus
when the arrangement of the internal organs is a “mirror image” of normal anatomy
situs perversus
one organ twisting
cell theory
all structure and function result from the activity of cells
positive feedback / positive feedback loops
physiological change that leads to an even greater change in the same direction
-example: labor contractions = more contractions
negative feedback
-effects stimulus in a negative way
-most common
- decrease the stimulus
-subtracts from
example:
High BP
increased BP =decreased BP
positive feedback
- effects stimulus in a positive way
- increase the stimulus
- adds to
example:
labor contractions = more contractions
homeostasis
state of equilibrium
FAST: nervous system (nerves)
SLOW: endocrine system (hormones)
diagnosis
di=two , agnosis= don’t know
two guesses
medical history
90% of diagnosis
physical exam (tests)
never make diagnosis, only support diagnosis
pharmacology
pharmakon = poison
radiography
density
sonography
fluid
computed tomography (CT Scan)
slice
magnetic resonance imaging (MRI)
soft tissue
radiopaque substances
-injected or swallowed
-fills hollow structures like blood vessels or the intestinal tract
positron emission tomography (PET Scan)
-detects activity of tissue
-injection of radioactively labeled glucose emits energy
sagittal plane
divides body into right and left halves
(lateral view)
coronal (frontal) plane
divides body into front and back portions
(anterior to posterior view)
transverse (horizontal) plane
divides the body into upper and lower portions
(birds eye view)
oblique plane
between the sagittal and coronal planes
(oblique view)
