Podcast
Questions and Answers
Which division of the autonomic nervous system is responsible for stimulation of 'rest-and-digest' activities?
Which division of the autonomic nervous system is responsible for stimulation of 'rest-and-digest' activities?
- Somatic nervous system
- Sympathetic nervous system
- Enteric nervous system
- Parasympathetic nervous system (correct)
Which nerve is not specifically mentioned as part of the parasympathetic nervous system?
Which nerve is not specifically mentioned as part of the parasympathetic nervous system?
- Facial nerve
- Spinal accessory nerve (correct)
- Vagus nerve
- Oculomotor nerve
What activities are associated with the parasympathetic nervous system's stimulation?
What activities are associated with the parasympathetic nervous system's stimulation?
- Digestion and sexual arousal (correct)
- Dilation of bronchioles
- Sweating and increased heart rate
- Fight-or-flight response
Which part of the body do the pelvic splanchnic nerves, acting as parasympathetic nerves, originate from?
Which part of the body do the pelvic splanchnic nerves, acting as parasympathetic nerves, originate from?
What is the complementary system to the parasympathetic nervous system?
What is the complementary system to the parasympathetic nervous system?
Study Notes
Autonomic Nervous System Overview
- The parasympathetic nervous system stimulates 'rest-and-digest' activities.
- The sympathetic nervous system serves as the complementary system to the parasympathetic nervous system.
Parasympathetic Nervous System
- Commonly associated with activities such as digestion, salivation, lacrimation (tear production), urination, and defecation.
- Main cranial nerve involved is the vagus nerve; however, the phrenic nerve is not specifically mentioned within its context.
Origin of Pelvic Splanchnic Nerves
- Pelvic splanchnic nerves originate from the sacral region of the spinal cord, specifically from spinal segments S2 to S4.
- These nerves provide parasympathetic innervation to pelvic organs.
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Description
Test your knowledge about the parasympathetic nervous system, one of the divisions of the autonomic nervous system responsible for regulating the body's unconscious actions. Learn about its role in promoting 'rest-and-digest' functions.
