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75 terms

week10 & 11

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oligodendroglia
glial cell that produces myelin
aneurysm
local widening of an artery caused by weakness in the arterial wall
acetylcholine
neurotransmitter; example of a chemical released into a synapse
angina
chest pain resulting from temporary difference between supply and demand of oxygen to the heart muscle
cauda equina
spinal nerves below the end of the spinal cord
hypothalamus
portion of the brain under the thalamus; controls sleep, appetite and pituitary gland, region of the brain below the thalamus
myelin sheath
covering on a nerve cell axon, protective fatty tissue that surrounds the axon of a nerve cell
coronary arteries
blood vessel that branch from the aorta to carry oxygen-rich blood to the heart muscle
emboli
collection of material(clots) that have travel to and suddenly block a vessel
meninges
three protective membranes surrounding the brain and the spinal cord
medulla oblongata
lower portion of the brain; controls blood pressure, heartbeat and respiration
motor nerve
type of nerve that takes messages to the muscles from the brain
cyanosis
bluish coloration of the skin
occlusion
blockage of a blood vessel
meningioma
tumor of meninges
synapse
space between nerve cells
neurorrhaphy
suture of a nerve
phlebitis
inflammation of a vein
hemorrhoids
varicose veins near the anus
pericardium
saclike membrane surrounding the heart
dura mater
outermost layer of the meninges
cardiomyopathy
disease of the heart muscle
essential hypertension
high blood pressure of idiopathic etiology
raynaud phenomenon
short episodes of pallor and numbness in fingers and toes due to a temporary constriction of arterioles
cerebral cortex
outer region of the largest part of the brain; composed of gray matter
syncopal
pertaining to fainting
mitral valve
located between the left upper and lower chambers of the heart
murmur
extra heart sound heard between normal beats
sensory nerve
carries messages toward the brain from receptors
demyelination
lack of myelin
systole
contraction phase of the heartbeat
tetralogy of fallot
congenital malformation of the heart involving four distinct defects, the appearance of 4 separate congenital heart defects
paresthesia
abnormal sensation
dendrite
branching fiber that is the first part of a neuron to receive a nervous impulse
paresis
slight paralysis
pulmonary artery
blood vessel that carries oxygen-poor blood form heart to lungs
congestive heart failure
the heart unable to pump its required amount of blood; pulmonary edema may result
digoxin
drug used to strengthen the heartbeat
plexus
a large, interlacing network of nerves
neurasthenia
lack of strength in nerves; irritability
sinoatrial node
sensitive tissue in the right atrium wall that begins the heartbeat
patent ductus arteriosus
small duct between that aorta and pulmonary artery, which normally closes soon after birth but remains open
sphygmomanometer
instrument used to measure blood pressure
axon
microscopic fiber that carries the nervous impulse along a nerve(the tail)
hyperkinesis
excessive movement
ischemia
lead to myocardial infarction, blood is held back from an area, can be cause by thrombotic occlusion of a blood vessel
arrythmias
examples are flutter, fibrillation, and heart block
endocarditis
inflammation of the inner lining of the heart
subarachnoid space
contains cerebrospinal fluid
parenchymal
essential cells of an organ
claudication
blockage of arteries in the lower extremities due to atherosclerosis
intrathecal
within the meninges
DVT
blood clot forms in a large lower limb vessel
beta blockers
drugs used to treat abnormal heart rhythms and high blood pressure
palpitations
uncomfortable sensations in the chest
gyri
elevations on cerebral cortex
dementia
loss of mental capacity
petechiae
small, pinpoint hemorrhages
patent
another word for open
pia mater
innermost meningeal membrane
palliative
relieving, but not curing
cardiac arrhythmia
examples fibrillation, flutter, bradycardia
mitral valve prolapse
improper closure of a heart valve when the heart is pumping blood
cerebellum
part of the brain that controls muscular coordination
parenchymal cell
essectial cell of the nervous system, a neuron
aura
peculiar symptoms appearing before definite symptoms
angina
chest pain relieved with nitroglycerin
endocarditis
inflammation of the inner lining of the heart
gait
manner of walking
Holter Monitor
EKG taken during daily activity
endarterectomy
removal of plaque from the inner lining of an artery
phlebotomy
incision of a vein
idiopathic
cause of essential hypertension
echo
high frequency sound waves are transmitted into the chest
serum enzymes
CK, LD, amd AST are all examples