CNS- Central Nervous System - Answers composed of cerebrum,cerebellum & Medulla oblongata
PNS-Peripheral Nervous System - Answers Composed of Cranial Nerves
(optic,olfactory,auditory,trigeminal & facial) & spinal nerves
ANS-Autonomic nervous system - Answers divided into sympathetic and parasympathetic nervous
system
cerebrum - Answers thought area of the brain
cerebellum - Answers coordinating motor area of the brain
Medulla oblongata - Answers coordinating region for impluses/seat of autonomic center
cranial nerves - Answers Optic=sight, olfactory=smell, auditory=hearing, trigeminal=teeth/jaw,
facial=muscles
spinal nerves - Answers motor and sensory nerves that leave various tracts of the spinal cord and goes
to all areas of the body
sympathetic nervous system - Answers speeds things up "fight or flight" cause vasoconstriction
(vasomotor= vessel movement) increases heart rate
Parasympathetic nervous system - Answers decreased heart rate, blood pressure, baroreceptores. (in
aortic arch, carotid sinus & ventricals increase parasympahtetic output.)
myocardium - Answers cardiac muscle
Atria - Answers 2 superior chambers of heart that receive blood: Right- oxygen poor,receives blood from
body, Left-oxygen rich, receives blood from lungs via pulmonary vein
ventricals - Answers 2 chambers of the heart that receive blood from the atria. Right-sends oxygen poor
blood to lungs
Left-sends oxygen rich blood to body& peripheral circulation
arteries - Answers all vessels leading away from the heart (pulmonary artery= only artery with oxygen
poor blood) Coronary artery = supply oxygen nutrients to the heart)
veins - Answers all vessels leading to the heart
echocardiogram - Answers detects heart murmur or mitral valve prolapse
angina - Answers chest pain from ischemia (reduced 02 supply that weakens heart cells but doesn't kill
them) occurs usually during excretion (resolved by rest or nitroglycerin)