Autonomic Nervous System Review
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This set of flashcards covers key concepts related to the autonomic nervous system and its components, including divisions, receptors, spinal nerves, and plexuses.
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20 Terms
Which division of the ANS is responsible for 'fight or flight'?
Sympathetic nervous system
Which division of the ANS is called 'rest and digest'?
Parasympathetic nervous system
How many pairs of spinal nerves are in the human body?
31 pairs
Which root carries sensory information INTO the spinal cord?
Dorsal root
Which root carries motor signals OUT of the spinal cord?
Ventral root
Which nerve controls the diaphragm and breathing?
Phrenic nerve
Which receptor detects pain?
Nociceptors
Which receptor detects temperature?
Thermoreceptors
Which receptor detects touch and pressure?
Mechanoreceptors
Which receptors respond to chemicals?
Chemoreceptors
Which receptors respond to light?
Photoreceptors
How many pairs of cranial nerves are there?
12 pairs
What does the PNS stand for?
Peripheral Nervous System
What does the CNS stand for?
Central Nervous System
Which plexus supplies the upper limb?
Brachial plexus
Which plexus supplies the diaphragm?
Cervical plexus (via phrenic nerve)
Which plexus supplies the anterior thigh?
Lumbar plexus
What is the largest nerve in the body?
Sciatic nerve
Which division of the ANS uses mostly norepinephrine?
Sympathetic division
Which division of the ANS uses acetylcholine at postganglionic neurons?
Parasympathetic division
