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Human anatomy intro


Anatomical position Body is erect with palms facing up. facing the observer.
superior towards the head
inferior away from the head
anterior front of the body
posterior back of the body
proximal towards the point of attachment
distal away from point of attachment
medial closer to the midline
lateral farther away from the midline
superficial towards the surface of the body
deep farther away from the body
visceral membrane that covers the organ
parietal membrane that covers the body cavity
supine body face up
prone body face down
sagittal divides body into right/left positions
midsagittal divides body into equal right/left portions
coronal divides body into front/back
transverse right to left, dividing body
longitudinal cut length wise on a cylindrical body part
oblique neither parallel nor at a right angle
cranium brain case
cervical region neck
thorax chest
abdomen abdominal
axilla armpit
brachium upper arm
femoral region thigh
plantar surface sole of foot
neuro nerve
myo muscle
gastric stomach
hepatic live
renal kidney
osteo bone
chondro cartelidge
pleural lung
cardiac heart
dorsal body cavity vertebral and cranial cavities
cavities largest to smallest - lungs thoracic- plueral
cavities largest to smallest - heart thoracic - mediastinum - pericardium
cavities largest to smallest - urinary bladder thoracic - abdominal pelvic- abdominal
cavities largest to smallest - brain dorsal crainial
atom smallest particle of an element
atom consist of a central nucleus
the nucleus of an atom is made up of positively charged ( 2 answers ) protons and neutrons
surrounding the nucleus is an area of mostly empty space that is effectively occupied by the negative electrons
some atoms lose or gain electrons, becoming electrically charged atoms called ions
how many electrons can the outer shell hold eight
two atoms of the same element are called isotope
atoms join together by bonding to form molecules
there are two major types of bonds in molecules which are - ionic and covalent
list the levels of organization from smallest to largest atom - molecule- macromolecule - organelle- cell - tissue - organ - organ system - organism
negative feedback loop the net effect is the output of the system shuts off the original stimulus
example of negative feedback loop low/high blood sugar
positive feedback loop the effects of a small disturbance on a system include an increase in the magnitude of the perturbation
all of the chemical reactions and processes occurring in an organism are called metabolism
positive feedback loop example childbirth
Created by: rcbutler23