directional terms
what is the midsagital plane
it cuts the body into left and right parts
what are the three body cavities
abdominal cavity
thoracic cavity
pelvic cavity
what is osmosis?
it is the diffusion of water
what happens to a cell if put in a hypotonic solution
the cell gets bigger
what is mitochondria
the powerhouse of the cell
what's the opposite of proximal
distal
what is another name for the skin system
integumentary system
selective permeability is
a cell membrane that has a barrier that allows some substances to pass through it but excluding others.
what is isotonic solution
it has equal amounts of solutes and solvents
what's the difference between cilia and flagella
cilia moves substances across the cell and flagella moves the cell itself
the legs are ---- to the shoulder
distal
what does the nervous system do
it detects change in the body and sends communication through the nerves
why is cholesterol important
it helps keep the membrane fluid
what is a solution
homogeneous mixture of 2 or more components
where in the cell does detoxification of drugs and pesticides happen
smooth endoplasmic reticulum
what is the opposite of deep
superficial
what are the 4 most important elements in our body
carbon, hydrogen, oxygen, nitrogen
why are many organelles enclosed in their own membranes
to maintain the chemical environment inside the organelles that is different from the environment outside.
what is the difference between intracellular fluid and interstitial fluid
intracelluar fluid is fluid inside of cell and Interstitial fluid is fluid outside of the cell.
How do cell get demolished
by lysosomes
what bone is posterior to the ribs
spine
how many organ systems are there and state them
seven
skeletal
integumentary
lymphatic
cardiovascular
nervous
reproductive
endocrine
what is the role of glycoproteins
they make the cell surface sticky. they determine blood type and act as receptors for bacteria/viruses
what do we give to a person who is dehydrated
a hypotonic solution
what is the fluid inside the cell
intracellular fluid and the cytoplasm