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Pallesthesia (\ˌpal-es-ˈthē-zh(ē-)ə\), or vibratory sensation, is the ability to perceive vibration. [1] [2] This sensation, often conducted through skin and bone, is usually generated by mechanoreceptors such as Pacinian corpuscles, Merkel disk receptors, and tactile corpuscles. [1]
The hexaxial reference system is a diagram that is used to determine the heart's electrical axis in the frontal plane.. In electrocardiography, left axis deviation (LAD) is a condition wherein the mean electrical axis of ventricular contraction of the heart lies in a frontal plane direction between −30° and −90°.
Myoclonus is a brief, involuntary, irregular (lacking rhythm) twitching of a muscle, a joint, or a group of muscles, different from clonus, which is rhythmic or regular.. Myoclonus (myo-"muscle", clonus "spasm") describes a medical sign and, generally, is not a diagnosis of a dis
The predominant symptoms of NC involve one or both legs and usually presents as some combination of tingling, cramping discomfort, pain, numbness, or weakness in the lower back, calves, glutes, and thighs and is precipitated by walking and prolonged standing. However, the symptoms vary depending on the severity and cause of the condition.
Secondary Raynaud's can occur due to a connective-tissue disorder such as scleroderma or lupus, injuries to the hands, prolonged vibration, smoking, thyroid problems, and certain medications, such as birth control pills and stimulants. [8] Diagnosis is typically based on the symptoms. [3] The primary treatment is avoiding the cold. [3]
The symptoms may be more intense because a condition caused by prolonged weightlessness is usually quite unfamiliar. [ citation needed ] Space motion sickness was effectively unknown during the earliest spaceflights because the very cramped conditions of the spacecraft allowed for only minimal bodily motion, especially head motion.
The condition was brought to the mainstream on the series CSI: Crime Scene Investigation in the tenth-season episode "Internal Combustion" on February 4, 2010. [65] Chiari malformation was briefly mentioned on the medical drama House M.D. in the fifth-season episode " House Divided ", [ citation needed ] It was the focus of the sixth-season ...
Upon leaving the medulla oblongata between the olive and the inferior cerebellar peduncle, the vagus nerve extends through the jugular foramen, then passes into the carotid sheath between the internal carotid artery and the internal jugular vein down to the neck, chest, and abdomen, where it contributes to the innervation of the viscera, reaching all the way to the colon.