1. How do the Autonomic and Somatic systems differ?
BIOL 2010 Human Anatomy & Physiology I
How do the Autonomic and Somatic systems differ?
Both part of ______
________ has __________ in CNS, whereas ________ has __________, 1 in CNS and 1 in ____________ ___________
Somatic neurons ___________, whereas Autonomic are _________
Somatic innervates __________ _______, whereas Autonomic innervates ___________________ __________________.
See table 16.1 for more information

2. What structures comprise the sympathetic division?
__________________ leave the spinal cord (T1-L2 or _______________, traveling with other axons through ventral root and spinal nerve) and enter the _____________ _____________.

3. What structures comprise the sympathetic division?
These axons can synapse with _______________ ___________ in the SCG and…
Or they can pass through to synapse in __________ or _______________.

4. What structures comprise the parasympathetic division?
Preganglionic neurons leave CNS (____________) to synapse with postganglionic neurons in __________________ in or near target organs.

5. What about the enteric portion of the nervous system?
Nerve plexuses (sensory and motor neurons) associated with the _____________.
_______________ detect chemical and physical changes
_______________ stimulate smooth muscle contraction
_______________ connect types 1 & 2 together

6. How are autonomic nerve fibers distributed?
Sympathetic axons reach target organs through ___________ and ______ _________
Parasympathetic axons reach target organs through _____________ and _____ __________
Remember _______ (________) _________ also travel via these nerves.

7. What neurotransmitters are used at chemical synapses?
2 major types of neurons secreting one of 2 primary types of neurotransmitters:
_________ neurons = _____________
_________ neurons = _____________
Other substances may function as neurotransmitters

8. How do autonomic receptors vary ?
Receptors for _______________ come in 2 forms:
__________ = excitatory (Na+ channels)
__________ = excitatory/inhibitory (G proteins)
______________________ comes from neurons and/or adrenal medulla
Effects… near sympathetic usually excitatory otherwise variable responses (see table 16.3)

9. How is the autonomic nervous system regulated?
___________________ control visceral organs, glands and blood vessels

10. How is the autonomic nervous system regulated?
_____________ is general control center for ANS
____________________ etc. communicate with hypothalamus thus _________ ________________________
Both sympathetic and parasympathetic systems can influence ______________
Enteric can operate independently of CNS via _____________

11. What is the “big picture” for the autonomic system?
_______ divisions of ANS can produce __________ and __________ responses
Most organs innervated by both divisions, w/ __________ ________, although not always and not equally

12. What is the “big picture” for the autonomic system?
Sympathetic division causes more generalized responses (more divergent and adrenal medulla activity)
__________ generally prepares for _____________
_____________ generally responsible for _________ __________ (SLUDD)