Chapter 13. PNS. PNS. Cranial nerves Spinal nerves. Sensory Receptors. Specialized cells that monitor specific conditions in the body or external environment Activation of sensory receptors results in depolarizations that trigger impulses to the CNS
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start where dorsal and ventral roots unite (just lateral to the vertebral column), then branch and form pathways to destinationPeripheral Distribution of Spinal Nerves
Both are somatic and visceral outflow to the body
There are several ways to classify reflexes but most common is by complexity of the neural circuit: monosynaptic vs polysynaptic
A stretch reflex
Bundles of small, specialized muscle fibers
Sense passive stretching in a muscleMuscle Spindles