DAANCE Module 1 - Basic Sciences 2024 Questions & Answers 100% Correct Verified

neurons do what - conduct nerve impulses what is the synapse - junction between two neurons what makes up the central nervous system - brain and spinal cord what three parts make up the brain - cerebrum, cerebellum, medulla oblongata what makes up the peripheral nervous system - sensory nerves and motor nerves How many cranial nerves are there - 12 what nerve is the trigeminal nerve - 5 what parts does the trigeminal nerve control - supplies sensation to the teeth and jaw what are the 2 components of the autonomic nervous system? - sympathetic nervous system parasympathetic nervous system what nervous system "speeds things up" - sympathetic what nervous system "slows things down" - parasympatheticwhat nervous system has terminations in all level of the heart - sympathetic nervous system stimulation of the sympathetic nervous system causes what? - vasoconstriction in general and increases the heart rate what nervous system is important in maintaining blood pressure - sympathetic vasomotor is controlled by the - sympathetic nervous system the vasomotor does what - controls the diameter of the blood vessels baroreceptors regulate what function - blood pressure with positional changes the sympathetic or adrenergic effects of the autonomic nervous system involve what - two effects A and B- these effect several tissues and organs Alpha effect is what (only one alpha) - vasoconstriction Beta effect is what( two beta categories) - seen in bigger organs, heart and lungs Beta 1 activity is where - heart related functions- such as increased heart rate and strength of contraction Beta 2 activity is where - pulmonary function of bronchiolar dilation (lungs) Parasympathetic stimulation causes what - increased activity of digestive tract and stimulates production of saliva and pharyngeal secretions. (atropine or Robinul can counteract stimulations)Automaticity - heart pumps on its own Heart has four chamber- what are they - left atrium, right atrium, left ventricle, right ventricle Where does the left atrium receive blood from - from the lungs, via the pulmonary vein- oxygen rich blood Where does the right atrium receive blood from - from the peripheral (body's) circulation and is oxygen poor the ventricles receive blood from where - th