Synopsis of Psychiatry Test Questions
and Correct Answers Graded A+
George Engel - Answer: Modern psychiatrist who influenced the biopsychosocial approach
10^11 - Answer: number of neurons in the brain
10^12 - Answer: number of glial cells in the brai
Astrocytes - Answer: The most common type of glial cells - provide nutrition of neurons, deactivation of
some neurotransmitters, and integration with the blood-brain barrier
Oligodendrocytes and Schwann cells - Answer: Produce myelin around axons
-Oligodendrocytes- CNS
-Schwann Cells-PNS
Microglia - Answer: Act as phagocytes, eating damaged cells and bacteria, act as the brains immune
system - derived from macrophages
Light touch, pressure, pain, temperature, vibration, and proprioception - Answer: The six somatosensory
modalities
Pathway of somatosensory information processing - Answer: Somatosensory information - two point
discrimination, tactile sense (fine touch), vibratory sense, kinesthetic sense, muscle tension, joint
position sense - fasciculi gracilis and cuneatus - VPL nucleus of the thalamus - Somatosensory cortex
(Brodmann's areas 3,1, and 2)
Somatosensory information - pain, temperature, coarse touch, deep pressure - spinothalamic tract -
VPL, VPI, intralaminar nuclei of the thalamus - Somatosensory cortex, Prefrontal cortex, Anterior
cingulate gyrus, Striatum, S-11
and Correct Answers Graded A+
George Engel - Answer: Modern psychiatrist who influenced the biopsychosocial approach
10^11 - Answer: number of neurons in the brain
10^12 - Answer: number of glial cells in the brai
Astrocytes - Answer: The most common type of glial cells - provide nutrition of neurons, deactivation of
some neurotransmitters, and integration with the blood-brain barrier
Oligodendrocytes and Schwann cells - Answer: Produce myelin around axons
-Oligodendrocytes- CNS
-Schwann Cells-PNS
Microglia - Answer: Act as phagocytes, eating damaged cells and bacteria, act as the brains immune
system - derived from macrophages
Light touch, pressure, pain, temperature, vibration, and proprioception - Answer: The six somatosensory
modalities
Pathway of somatosensory information processing - Answer: Somatosensory information - two point
discrimination, tactile sense (fine touch), vibratory sense, kinesthetic sense, muscle tension, joint
position sense - fasciculi gracilis and cuneatus - VPL nucleus of the thalamus - Somatosensory cortex
(Brodmann's areas 3,1, and 2)
Somatosensory information - pain, temperature, coarse touch, deep pressure - spinothalamic tract -
VPL, VPI, intralaminar nuclei of the thalamus - Somatosensory cortex, Prefrontal cortex, Anterior
cingulate gyrus, Striatum, S-11
