Download A&P Ch. 24 The Nervous System with 100% Verified Solution 2025 and more Exams Surgical Pathology in PDF only on Docsity!
A&P Ch. 24 The Nervous System with 100%
Verified Solution 2025
nervous system - ✔✔must gather, store, and decipher both external and internal information neurons - ✔✔motor sensory inter motor neurons - ✔✔neurons that carry outgoing information from the brain and spinal cord to the muscles and glands efferent nerves - ✔✔"carrying away" motor neurons sensory neurons - ✔✔neurons that carry incoming information from the sensory receptors to the brain and spinal cord. Lack true dendrites afferent neurons - ✔✔"carry toward" sensory neurons Interneurons - ✔✔neurons within the brain and spinal cord that communicate internally and intervene between the sensory inputs and motor outputs nerve fiber - ✔✔axon of a neuron. a single elongated process.
Schwann cells - ✔✔Supporting cells of the peripheral nervous system responsible for the process of regenerating tracts - ✔✔bundles of nerve fibers in the CNS nerve system development - ✔✔begins at 6 weeks nerve system decline - ✔✔verbal skills decline after 70. nerve cell count decreases. brain weight declines 10% between ages 20 or 30 - 90. Synapse - ✔✔A junction where information is transmitted from one neuron to the next. Central Nervous System (CNS) - ✔✔consists of the brain and spinal cord. (gray and white matter). receives impulses from the entire body, processes the information, and responds with appropriate actions. brain - ✔✔the largest mass of nervous tissue in the body at about 3 lbs. (Males slightly larger) Meninges - ✔✔three protective membranes that surround the brain and spinal cord Cerebrum - ✔✔Largest part of the brain; responsible for voluntary muscular activity, vision, speech, taste, hearing, thought, and memory. composed of both gray and white matter. cerebral hemispheres - ✔✔the two sections of the cortex on the left and right sides of the brain Lobes of the brain - ✔✔frontal, parietal, occipital, temporal
encephalitis - ✔✔inflammation of the brain migraine headache - ✔✔characterized by throbbing pain on one side of the head tension headache - ✔✔occurs from long, endured contraction of the skeletal muscles around the face, scalp, upper back, and neck cluster headache - ✔✔pain is in and around one eye posttraumatic headache - ✔✔Headache occurs secondary to head injury or concussion. approximately 1/2 of all head or neck injuries lead to this type. Huntington's disease - ✔✔Huntington's Chorea. progressive degenerative disorder that results in uncontrolled bodily movement Meningitis - ✔✔inflammation of the meninges caused by viral or bacterial infection. Parkinson's disease - ✔✔A disorder of the central nervous system that affects movement, often including tremors. spinal cord injuries - ✔✔severe damage to the spinal cord that impairs the function of the spinal cord quadriplegia - ✔✔paralysis of all four extremities paraplegia - ✔✔paralysis from the waist down hemiplegia - ✔✔paralysis on one side stroke - ✔✔Cerebrovascular Accident (CVA)
Transient Ischemic Attack (TIA) - ✔✔Minor stroke; where neurological function is regained quickly with time.
