PSY 351 Study Guide - Midterm Guide: Paraventricular Nucleus Of Hypothalamus, Congenital Adrenal Hyperplasia, Adrenocorticotropic Hormone
11 Mar 2015
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Meissner corpuscles: sensitive to lower frequency vibrations (50 hz) Pacinian corpuscles: sensitive to higher frequency vibration (200-300 hz) Active when feeling sound vibrations from a speaker: how meissner & pacinian corpuscles transmit touch info: [information is carried to the cns through a vast network of axons in pns. : how sensory info. Dermatome = area that provides cutaneous sensory info. to single s. c. segment: pathways of sensory info. to brain: Dorsal root ganglia (axons travel thru dorsal column) medulla (synapse in dorsal column nuclei, axons cross in medial lemniscus) . Cranial nerve v (trigeminal nerve) pons (axons cross) thalamus. Spinal nerves consist of sensory nerve roots, which enter @ each level (cervical, thoracic, lumbar, sacral) and motor roots, which exit spinal cord @ each level. Spinal nerves are named and numbered according to the site of their exiting the vertebral canal.
