ADVANCED PATHOPHYSIOLOGY MIDTERM-1.pdf

ADVANCED PATHOPHYSIOLOGY MIDTERM- ADVANCED PATHOPHYSIOLOGY MIDTERM EXAM- 60 QUESTIONS AND VERIFIED ANSWERS | ALREADY RATED A+| What is a protective and complex phenomenon composed of sensory experiences (time, space, intensity), emotion, cognition, and motivation? - ---CORRECT ANSWER--- Pain Portion of the nervous system responsible for sensation and perception of pain can be divided into 3 areas: - ---CORRECT ANSWER--- A: Afferent pathways B interpretive centers in the brainstem, midbrain & diencephalon C: descending pathways from the brain to the dorsal horn of spinal cord. Nociceptors are pain receptors that detect a wide range of stimuli and respond to: - --- CORRECT ANSWER--- Chemical, mechanical, and thermal stimulation The afferent system is: - ---CORRECT ANSWER--- Composed of nociceptors the dorsal horn of the spinal column (second-order neurons) and afferent neurons in the Aδ and C fibers (first-order neurons);spinothalamic tract (third-order neurons). Myelinated Aδ receptor transmission is - ---CORRECT ANSWER--- Fast and conveys mechanical and thermal localized pain. Unmyelinated polymodal C fiber transmission is: - ---CORRECT ANSWER--- Slower and conveys sharp, diffuse burning and aching sensations These primary-order neurons terminate on second-order neurons. - ---CORRECT ANSWER--- Three classes of second-order neurons modulate pain transmission: - ---CORRECT ANSWER--- projection cells, excitatory interneurons and inhibitory interneurons. The second-order neurons are located: - ---CORRECT ANSWER--- in the spinal cord laminae The second-order neurons function as - ---CORRECT ANSWER--- a pain gate to