organ that moves oxygen into the body and moves carbon dioxide out of the body
lungs
organs that filter blood
kidneys
main processing center for the nervous system
the brain
part of the eye that controls how much light is able to enter the eye
pupil
basic living unit of all organisms
cell
the main artery that moves oxygenated blood away from the heart and to the body
aorta
beginning of digestive system
the mouth
process of maintaining a stable internal state
homeostasis
the front part of the eye where light enters
cornea
group of the same type of cells
tissue
artery that carries blood from the heart to the lungs
pulmonary artery
organ that absorbs nutrients from food
small intestine
changes in the internal or external environment that trigger a response
stimuli
the nerve that passes visual signals from the eye to the brain
optic nerve
things outside your body that can affect your internal stability, like temperature, stress, and disease
external factors
airway from the nose & mouth to the larynx
pharynx
connects kidneys to the bladder
ureter
part of the neuron that takes info away from the cell body
axon
part of the eye that turns light into visual signals
retina
a rigid bone cell
osteoblast
part of the heart that brings in deoxygenated blood from the lower body
inferior vena cava
structures in the kidneys that remove waste material and return water & glucose to the blood
nephrons
neurons that take in sensory info and send it to the brain
sensory neurons
sensory receptors that detect light
photoreceptors
sensory receptors that detect hot & cold temperatures
thermoreceptors