anatomy final 7

moves a bone away from midline

raises or elevates a body part

lowers or depresses a body part

rotates a bone around its axis

makes a body part rigid

decreases the size of an opening

sensory receptors defect internal stimuli. Carried into the brain spinal cord through cranial and spinal nerves

The nervous system processes sensory information (knowns ad integration_

once integrated the nervous system may elicit an appropriate motor responses by activating effectors (muscles and glands)

which cells have the property of being electrically excitable?

Has a charge imbalance across its membrane. It includes most cells of the body. Exhibits a membrane potential

what happens during the resting state of the voltage sodium channel gate?

when a second action potential is initiated by a larger than normal stimulus

they are 3 protective layers encircling the spinal cord and brain

thickest layer (tough mother)

spider like layer

delicate layer