Exam 2: Ch. 9 Flashcards
What are the 2 divisons of the efferent motor PNS and what do they control?
Somatic motor (skeletal) and autonomic motor (involuntary
What are the (2) divisions of the PNS?
Sensory (afferent) and motor (efferent)
What are the 2divisions of the autonomic motor and what is there function?
Sympathetic ( fight or flight)
Parasympathetic (resting)
Enteric
The somatic motor has __ ganglia, ____ neuron(s), is only (excitatory or inhibitory), ( voluntary/ involuntary)
No…..one….excitatory….voluntary
The autonomic has/doesn’t have ganglia, _____ neuron(s) is (excitatory/ inhibitory) and ( voluntary/ involuntary)
Has…..two… Excitatory and inhibitory… Involuntary
All 3 divisions of the ANS have…(3)
2neuron pathway
Preganglionic neurons from CNS
Postganglionic neurons outside CNS
The sympathetic division of the ANS is also called the
Thoracolumbar
The autonomic division of the ANS is also called the..
Craniosacral
The preganglionic fibers of the parasympathetic division synapse in..
Terminal ganglia
Which division of the ANS (sympathetic/parasympathetic) has mass activation and what are 3 examples of that activation?
Sympathetic
Increase HR
Shunt blood from skin to skeletal muscles
Inhibit GI tract movement
Receptors for ACh are called _____. What 2 places are they located? And what are the 2 types of receptors they attach to?
Cholinergic
All somatic motor neurons and all preganglionic fibers
Nicotinic and muscarinic
Receptors for norepinephrine are called_____. Where are these receptors found?
Adrenergic…most sympathetic ganglion
What are the 3 types of duel innervation? And what do they mean?
Antagonistic (work against)
Complementary (work together for similar effects)
Synergistic (different effects for a single action)
What is an example of an organ without duel innervation?
Sweat glands
