ah 2001 week 6

gli/o

neuroglia

mening/o, meninge/o

meninges

myel/o

spinal cord (also bone marrow)

radicul/o

spinal nerve root

phasia

speech

lalia

speech, babble

lexia

reading

plegia

paralysis

paresis

partial paralysis

-lepsy

seizure

-phobia

persistent, irrational fear

-mania

excited state, obsession

cerebrum

• largest part of brain

• mostly white matter

• two hemispheres

diencephalon

• thalamus: receives sensory info

• hypothalamus: controls pituitary gland, link btwn endocrine and nervous

  • pituitary gland

midbrain

contains reflex centers for improved vision and hearing

pons

contains fibers that connect different regions of brain

medulla oblongata

connects brain w spinal cord, controls hr, respiration, bp

meninges

set of three protective layers covering brain and spinal cord

• dura mater

• arachnoid

• pia mater

encephal/o

brain

narc/o

stupor, unconsciousness

sympathetic nervous system

fight or flight response

parasympathetic nervous system

return body to steady state

afferent

carrying toward a given point

arachnoid mater

middle layer of meninges

brainstem

midbrain, pons, medulla oblongata

cerebrospinal fluid (CSF)

watery fluid that circulates in and around the brain and spinal cord as protection

cerebral cortex

cerebrums thin surface layer of gray matter

cranial nerves

12 pairs of nerves connected to brain

dendrite

fiber of neuron that conducts impulses toward the cell body

diencephalon

part of brain that contains thalamus, hypothalamus, and pituitary gland, located between the cerebrum and the brainstem

dura mater

strong, fibrous outermost layer of the meninges

efferent

carrying away from a given point

ganglion

collection of nerve cell bodies outside the CNS

gray matter

unmyelinated tissue of the nervous system

gyrus

raised convolution of the surface of the cerebrum

hypothalamus

part of the brain that controls the pituitary gland and maintains homeostasis

interneuron

any neuron located between a sensory and a motor neuron in a neural pathway such as the neurons that transmit impulses within the CNS

medulla oblongata

portion of brain that connect w spinal cord, has vital centers for control of respiration, HR, and blood pressure

neuroglia

supportive cells of nervous system, also called glial cells

sulcus

shallow furrow or groove, as on the surface of the cerebrum

thalamus

part of brain that receives all sensory impulses except those for the sense of the smell and directs them to the proper portion of the cerebral cortex