A&P CHAPTER 14: AUTONOMIC NERVOUS SYSTEM Flashcards
AUTONOMIC NERVOUS SYSTEM IS PART OF WHICH NERVOUS SYSTEM
PERIPHERAL
AUTONOMIC NERVOUS SYSTEM IS ALSO KNOWN AS:
INVOLUNTARY SYSTEM
HOW ARE ANS NEURONS DIFFERENT FROM MOTOR NEURONS
THEY ARE MOTOR NEURONS WITH
GANGLIONIC NEURON
PREGANGLIONIC AXON LEAVES CNS TO SYNAPSE WITH SECOND MOTOR NEURON’S POSTGANGLIONIC AXON
WHERE DOES THE PREGANGLIONIC AXON COME FROM
THE CNS
WHERE THE POSTGANGLIONIC AXON EXTEND TO
EFFECTOR ORGAN
DIFFERENCE BETWEEN PRE AND POST-GANGLIONIC AXONS
PRE IS LIGHTLY MYELINATED
POST ARE UNMYELINATED
WHAT IS AUTONOMIC TONE
AUTONOMIC MOTOR NEURONS HAVING A RESTING LEVEL OF SPONTANEOUS ACTIVITY EVEN WITHOUT STIMULI
WHAT ARE AUTONOMIC GANGLIA
MOTOR GANGLIA AND CONTAIN CELL BODIES OF MOTOR NEURONS
IS AUTONOMIC SYSTEM CONDUCTION SLOWER OR FASTER THAN SOMATIC MOTOR SYSTEM
SLOWER
MAJOR NEUROTRANSMITTERS OF THE AUTONOMIC NERVOUS SYSTEM
ACETYLCHOLINE AND NOREPINEPHRINE
HOW IS ACETYLCHOLINE REMOVED FROM A SYNAPSE?
DECOMPOSED BY ACETYLCHOLINESTERASE
HOW IS NOREPINEPHRINE REMOVED FROM A SYNAPSE?
INACTIVATED BY MONOAMINE OXIDASE AND THEN ACTIVE TRANSPORTED BACK TO NERVE ENDINGS
SYMPATHIC FIBERS HAVE ___ PREGANGLIONIC FIBERS AND ____ POSTGANGLIONIC FIBERS
PARASYMPATHETIC FIBERS HAVE ___ PREGANGLIONIC FIBERS AND ____ POSTGANGLIONIC FIBERS
SHORT, LONG
LONG, SHORT
PARASYMPATHETIC IS THE “____”
REST AND DIGEST
WHAT IS SYMPATHETIC ACTIVATION
ENTIRE SYMPATHETIC DICVISION RESPONDS TO A CRISIS
ALERTNESS, ENERGIZED
BP, HR, RR INCREASE, PUPILS DILATE
PARASYMPATHETIC ACTIVATION
CONSTRICTED PUPILS, INCREASED SECRETIONS, INCREASED NUTRIENT ABSORPTION, CHANGES IN BLOOD FLOW
WHAT IS DUAL INNERVATION
TWO DIVISIONS (PARASYMPATHETIC AND SYMPATHETIC) COUNTERBALANCE THE EFFECTS OF EACH OTHER
WHAT SI THE ENTERIC NERVOUS SYSTEM
IN DIGESTIVE TRACT AND REACTS TO BOTH SYMPATHETIC AND PARASYMPATHETIC DIVISIONS
SYMPATHETIC SYSTEM IS THE “_____”
FIGHT OR FLIGHT
WHAT NERVES MAKE UP 80-90% OF THE PARASYMPATHIC FIBERS IN BODY
VAGUS
LOCATION OF GANGLIA IN SYMPATHETIC VS PARASYMPATHIC
SYMPATHETIC: CNS
PARASYMPATHETIC: VISCERAL ORGANS
WHAT DOES THE SYMPATHETIC VS THE PARASYMPATHETIC SYSTEM RELEASE
SYMPATHETIC: ACETYLCHOLINE (PREGANGLIONIC) AND NOREPINEPHRINE (POSTGANGLIONIC)
PARASYMPATHETIC: ACETYLCHOLINE
WHAT TWO CATEGORIES DO ACH RECEPTORS FALL INTO
NICOTINIC VS MUSCARINIC (MUSHROOMS)
DIFFERENCE BETWEEN MIMETICS AND SYMPATHOMIMETIC DRUGS
MIMENTS: MIMIC ACTIVITY OF AUTONOMIC NEUROTRANSMITTERS
SYPATHOMIMETICS: MIMIC EFFECTS OF SYMPATHETIC ACTIVITY (COLD AND ALLERGY MEDS)
SYMPATHETIC SYSTEM PRIMARY CONTROLS ____ AT ALL TIMES
PARASYMPATHETIC SYSTEM PRIMARY CONTROLS ____ AT ALL TIMES
SYMPATHETIC: BLOOD PRESSURE/VASCULAR SYSTEM
PARASYMPATHETIC: HEART AND SMOOTH MUSCLE OF URINARY/DIGESTIVE ORGANS
AUTONOMIC DYSREFLEXIA
UNCONTROLLED ACTIVATION OF AUTONOMIC NEURONS
OVERFILLING OF BLADDER, HIGH BLOOD PRESSURE
RAYNAUD’S DISEASE
CAUSE BY EMOTIONAL STRESS OR COLD TEMPS
EXAGGERATED RESPONSE OF VASOCONSTRICTIVE ACTIVITIES
SYMPATHETIC SYSTEM IS THE “_____”
FIGHT OR FLIGHT
EFFECTS OF AGING ON ANS
ORTHOSTATIC HYPOTENSION
CONSTIPATION
DRYING OF EYES
ADRENERGIC FIBERS RELEASE ___
CHOLINERGIC FIBERS RELEASE ___
NOREPINEPHRINE
ACETYLCHOLINE
ADRENERGIC FIBERS RELEASE ___
CHOLINERGIC FIBERS RELEASE ___
NOREPINEPHRINE
ACETYLCHOLINE
SYMPATHETIC SYSTEM IS THE “_____”
FIGHT OR FLIGHT
