Head & Neck Anatomy - Fehrenbach, Herring Practice Questions & Answers 2024/2025 (Grade A+)

Head & Neck Anatomy - Fehrenbach, Herring Practice Questions & Answers 2024/2025 (Grade A+) Action Potential - ANSWER-Rapid Depolarization of the cell membrane that results in propagation of the nerve impulse along the membrane Afferent Nerve - ANSWER-Sensory Nerve that carries information from the periphery of the body to the brain or spinal cord Anesthesia - ANSWER-The loss of feeling or sensation resulting from the use of certain drugs or gases that serve as inhibitory neurotransmitters Bell's Palsy - ANSWER-Type of unilateral facial paralysis involving the facial nerve Efferent Nerve - ANSWER-Motor Nerve that carries information away from the brain or spinal cord to the periphery of the body Facial Paralysis - ANSWER-Loss of action of the facial muscles Ganglion/Ganglia - ANSWER-Accumulation of neuron cell bodies outside the central nervous system Innervation - ANSWER-Supply of nerves to tissues or organs Neuron - ANSWER-Cellular component of the nervous system that is individually composed of a cell body and neural processes. Neurotransmitter - ANSWER-Chemical agent from the neuron that is discharged with the arrival of the action potential, diffuses across the synapse, and binds to receptors on another cell's membrane Nerve - ANSWER-Bundle of neural processes outside the central nervous system; a portion of the peripheral nervous system Nervous system - ANSWER-The extensive, intricate network of structures that activates, coordinates, and controls all functions of the body Resting Potential - ANSWER-Charge difference between the fluid outside and inside a cell that results in differences in the distribution of ions. Synapse - ANSWER-Junction between two neurons or between a neuron and an effector organ, where neural impulses are transmitted by electrical or chemical means Trigeminal Neuralgia - ANSWER-Type of lesion of the Trigeminal nerve involving facial pain Afferent Vessel - ANSWER-Type of lymphatic in which lymph flows into the lymph node Efferent Vessel - ANSWER-Type of lymphatic vessel in which lymph flows out of the lymph node in the area of the node's hilus Hilus - ANSWER-Depression on one side of a lymph node where lymph flows out by way of an efferent lymphatic vessel Lymph - ANSWER-Tissue fluid that drains from the surrounding region and into the lymphatic vessels Lymphadenopathy - ANSWER-Process in which there is an increase in the size and a change in the consistency of lymphoid tissue Lymphatic Ducts - ANSWER-Larger lymphatic vessels that drain smaller vessels and then empty into the venous system Lymphatics - ANSWER-Portion of the immune system with ducts, nodes, tonsils, and vessels Lymphatic Vessels - ANSWER-System of channels that drains tissue fluid from the surrounding regions Lymph Nodes - ANSWER-Organized, bean shaped, lymphoid tissue that filters the lymph by way of lymphocytes to fight disease and is grouped into clusters along connecting lymphatic vessels Metastasis - ANSWER-Spread of cancer from the original or primary site to another or secondary site. Primary Node - ANSWER-Lymph node that drains lymph from a primary node Secondary Node - ANSWER-Lymph node that drains lymph from a primary node Tonsillar Tissue - ANSWER-Masses of lymphoid tissues located in the oral cavity and pharynx to protect the body against disease processes Fascua/Fasciae - ANSWER-Layers of fibrous connective tissue that underlie the skin and surround the muscles, bones, vessels, nerves, organs, and other structures of the body. Continues.......