Podcast
Questions and Answers
What does the autonomic nervous system control?
What does the autonomic nervous system control?
- Sensory information from the environment
- Cognitive processes, such as thinking and problem-solving
- Voluntary movements
- Involuntary actions, such as sweating and heart rate (correct)
What is a main function of the somatic nervous system?
What is a main function of the somatic nervous system?
- Controlling voluntary movements (correct)
- Producing hormones
- Regulating body temperature
- Processing sensory information
How many main subsystems does the peripheral nervous system have?
How many main subsystems does the peripheral nervous system have?
- Four
- One
- Two (correct)
- Three
What is an example of an autonomic process?
What is an example of an autonomic process?
What is the main difference between the autonomic and somatic nervous systems?
What is the main difference between the autonomic and somatic nervous systems?
Which spinal nerves form the phrenic nerve?
Which spinal nerves form the phrenic nerve?
What is the main function of the musculocutaneous nerve?
What is the main function of the musculocutaneous nerve?
Which nerve supplies muscles of the hands?
Which nerve supplies muscles of the hands?
What is the main function of the obturator nerve?
What is the main function of the obturator nerve?
Which spinal nerves form the brachial plexus?
Which spinal nerves form the brachial plexus?
What is the main function of the cervical plexus?
What is the main function of the cervical plexus?
Which nerve supplies muscles of the anterior neck?
Which nerve supplies muscles of the anterior neck?
What is the main function of the lumbosacral plexus?
What is the main function of the lumbosacral plexus?
What is the role of the sympathetic nervous system?
What is the role of the sympathetic nervous system?
What is the effect of the sympathetic nervous system on heart rate?
What is the effect of the sympathetic nervous system on heart rate?
What is the role of the parasympathetic nervous system?
What is the role of the parasympathetic nervous system?
What type of functions are controlled by thinking about them?
What type of functions are controlled by thinking about them?
What is the effect of the sympathetic nervous system on digestion?
What is the effect of the sympathetic nervous system on digestion?
What is the name of the nervous system that is responsible for involuntary actions such as sweating?
What is the name of the nervous system that is responsible for involuntary actions such as sweating?
What is the response triggered by the sympathetic nervous system in times of stress?
What is the response triggered by the sympathetic nervous system in times of stress?
Which of the following is NOT a result of the sympathetic nervous system's 'fight or flight' response?
Which of the following is NOT a result of the sympathetic nervous system's 'fight or flight' response?
What is the primary function of the autonomic nervous system?
What is the primary function of the autonomic nervous system?
What is the division of the autonomic nervous system that is responsible for promoting relaxation and reducing stress?
What is the division of the autonomic nervous system that is responsible for promoting relaxation and reducing stress?
What is the autonomic nervous system divided into?
What is the autonomic nervous system divided into?
What is the sympathetic nervous system responsible for?
What is the sympathetic nervous system responsible for?
What is a result of the 'flight or fight' response?
What is a result of the 'flight or fight' response?
What is decreased during the 'flight or fight' response?
What is decreased during the 'flight or fight' response?
What is NOT a result of the sympathetic nervous system?
What is NOT a result of the sympathetic nervous system?
Study Notes
Cervical Plexus
- Cervical plexus (C1 - C4) supplies the skin of the face and neck
- Other branches supply muscles of the anterior neck
- Fibers of C3/4/5 cervical nerves form the right and left phrenic nerve, which supplies the diaphragm
Brachial Plexus
- Brachial plexus (C5 –T1) supplies the arm and forearm
- Musculcutaneous nerve (a) supplies the arm and skin of the forearm
- Ulnar nerve (b) supplies muscles of the forearm, hands, and skin of the hands
- Median nerve (c) supplies muscles of the forearm and hands
Lumbosacral Plexus
- Lumbosacral plexus (T12 - S5) supplies the Adductor muscles of the thigh
- Obturator nerve supplies the Adductor muscles of the thigh
Autonomic Nervous System
- Divided into sympathetic and parasympathetic divisions
- Sympathetic nervous system responsible for 'flight or fight' responses, including:
- Increased alertness
- Metabolic rate
- Respiration
- Blood pressure
- Heart rate
- Sweating
- Decrease in digestive and urinary function
- Parasympathetic nervous system counteracts the responses of the sympathetic system and restores homeostasis
Somatic Nervous System
- Functions are managed by thinking about them
- Contrasts with autonomic nervous system, which operates automatically
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Description
Quiz about the functions and branches of cervical nerves, including the cervical plexus and its supply to the skin and muscles of the face and neck.
