NUTRITION
What nutrient gives your body energy ?
Carbohydrates
Where does digestion begin?
In the mouth
what organ is the center of the nervous system?
central nervous system and peripheral nervous system
what is blood pressure
it is the force exerted by the blood against the wails of the arteries
What is a radiography?
radiography is a medical imaging technique using X- ray
What food group does milk belong to?
Dairy
What liquid helps break down food in the mouth?
Saliva
what is a neuron?
a cell that transmits nerve signals
what does mmHG stand for ?
mm of mercury
what part of the body can you see on an X- ray ?
you can see bones and some organes.
What is the role of protein in the body?
build and repair tissues
what is the function of the stomach?
It mixes food with acids and enzymes to break it down
what is the role of the spinal cord?
it transmits messages between the brain and the body
what happens durring systolic pressure?
the heart contracts and pumps blood into the arteries
why do tissues absorb X- rays differently?
Because they have different density
Wich mineral is essentiel for strong bones?
Calcium
what organ absorbs most nutrinents?
the small instestine
how do neurons communicate with each other?
through synapses using chemical messengers ( neurotransmitters)
what factors can influence blood pressure ?
Stress , diet , physical activity , and cage can influence blood pressure .
why are contrast agents sometimes used ?
to make some organs easier to see on the image
Why are dietary fibers important ?
they help digestion and maintain gut health
what happens in the large intestine?
water is absorbed and waste is formed
what is the difference between the sympathetic and parasympathetic systems?
sympathetic prepares the body for action(stress),parasympathetic helps the body relax
what is the difference between systolic and diastolic pressure ?
systolic = when the heart contracts
diastolic = when the heart relaxes
Why must X -ray doses be limited?
because too much exposure can damage cells