Lecture Exam 1 Chapter 1 cont... Flashcards
stitus inversus
left / right reversal of organ placement
left / right reversal of organ placement
situs inversus
9 characteristics of life (A&P)
organization
cellular composition
metabolism
responsivness
movement
homeostasis
development
reproduction
evolution
organization (A&P)
a lot of cells with specific roles to play
a lot of cells with specific roles to play
organization (A&P)
cellular composition
one or more cells
one or more cells
cellular composition
metabolism (A&P)
internal chemical reactions
internal chemical reactions
metabolism (A&P)
responsivness
respond to stimuli
respond to stimuli
responsivness
movement
externally or internally of the organism
externally or internally of the organism
movement
homeostasis (A&P)
maintain stable internal balance
maintain stable internal balance
homeostatis
development (A&P)
changes and growth
changes and growth
development (A&P)
reproduction (A&P)
producing offspring or healing injury
producing offspring or healing injury
reproduction (A&P)
evolution
changes in genes
changes in genes
evolution
physiological variation
normal functions/structures can varry from sex, age, diet, weight, physical activity, genetics, & environment
normal functions/structures can varry from sex, age, diet, weight, physical activity, genetics, & environment
physiological variation
negative feedback
the body senses a change and negates/reverses it
the body senses a change and negates/reverses it
negative feedback
thermostat is the body is the
brain
homeostatic compensation
all sensors go to the brain
all sensors go to the brain
homeostatic compensation
steps in homeostatic control system
stimulus, receptor, input, output, response
or
imbalance, receptor, afferent pathway, control center, efferent pathway, effector, imbalance (neg feedback)
homeostatic control system
stimulus
produces change in variable
homeostatic control system
receptor
detects change
produces change in variable
homeostatic control system
stimulus
detects change
homeostatic control system
receptor
homeostatic control system
input
information sent from afferent pathway to control center
information sent from afferent pathway to control center
homeostatic control system
input
homeostatic control system
output
information sent from control center to efferent pathway to effector
information sent from control center to efferent pathway to effector
homeostatic control system
output
homeostatic control system
response
response of effector reduces the effect of stimulus & returns variable to homeostasis level
response of effector reduces the effect of stimulus & returns variable to homeostasis level
homeostatic control system
response
poitive feedback
increases change in the same direction
ex. child birth, blood clotting
increases change in the same direction
ex. child birth, blood clotting
poitive feedback
gradient
difference in chemical concentration, charge, tempurature, or pressure between two points
goes from higher to lower
difference in chemical concentration, charge, tempurature, or pressure between two points
goes from higher to lower
gradient
radiography (x-ray)
penetrate tissues to darken photographic film beneath the body
dense tissue appears white
penetrate tissues to darken photographic film beneath the body
dense tissue appears white
radiography (x-ray)
radiography (x-ray)
raiiopaque substances
injected or swallowed substance to fill hollow structures that would not normally be seen on an x-ray
injected or swallowed substance to fill hollow structures that would not normally be seen on an x-ray
radiography (x-ray)
raiiopaque substances
computed tomography (CT Scan)
low intensity x-rays & computer analysis to show sliced images
better quality than x-ray
low intensity x-rays & computer analysis to show sliced images
better quality than x-ray
computed tomography (CT Scan)
magnetic resonance imaging (MRI)
uses magnetic field and radio waves
superior quality & best for soft tissue
uses magnetic field and radio waves
superior quality & best for soft tissue
magnetic resonance imaging (MRI)
positron emission tomography (PET Scan)
inject radioactively labeled glucose
image color shows tissues using the most of the glucose at that moment
damaged tissues appear dark
inject radioactively labeled glucose
image color shows tissues using the most of the glucose at that moment
damaged tissues appear dark
positron emission tomography (PET Scan)
Sonography (Ulta-sound)
high frequency sound waves
100% safe to use
high frequency sound waves
100% safe to use
Sonography (Ulta-sound)
