Introduction - Autonomic Nervous System Flashcards
What is the origin of the sympathetic
What is the origin of parasympathetic
Explain ganglia in sympathetic
Para-vertebral close to spinal cord forming the sympathetic chain
Explain the ganglia in parasympathetic
Terminal or embedded in supplied organ
Describe the pre and post ganglionic in sympathetic
Preganglionic - short
Postganglionic - long
Describe the pre and post ganglionic in parasympathetic
Preganglionic - long
Postganglionic - short
Which organs receive nerve supply only sympathetic
Which organ receives nerve supply only parasympathetic
Constrictor pupillae muscle
What does the sympathetic control
Blood vessels and sweat glands
What does parasympathetic control
All organs except blood vessels and sweat glands
When does sympathetic act
In stress - fight and flight
When does the parasympathetic act
In psychic relaxation - rest and digestion
What does the sympathetic do to the heart ?
Increase all cardiac properties
What does the parasympathetic do to the heart ?
Decrease all cardiac properties except atrial conduction
What does the sympathetic do to the blood vessels ?
Vasoconstriction of skin
Vasodilation of skeletal and coronary blood vessels