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Phrenic nerve

phrenic nerve n.
A nerve that arises mainly from the fourth cervical nerve and is primarily the motor nerve of the diaphragm but also sends sensory fibers to the pericardium.


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  • Phrenicocolic ligament

    phrenicocolic ligament phren·i·co·col·ic ligament (frěn’ĭ-kō-kŏl’ĭk, -kō’lĭk) n. A triangular fold of peritoneum attached to the left flexure of the colon and to the diaphragm, on which the inferior extremity of the spleen rests.

  • Phrenicoexeresis

    phrenicoexeresis phren·i·co·ex·er·e·sis (frěn’ĭ-kō-ěk-sěr’ĭ-sĭs) n. See phrenicectomy.

  • Phrenicopleural fascia

    phrenicopleural fascia phren·i·co·pleu·ral fascia (frěn’ĭ-kō-plur’əl) n. The thin layer of endothoracic fascia between the diaphragmatic pleura and the diaphragm.

  • Phrenicotomy

    phrenicotomy phren·i·cot·o·my (frěn’ĭ-kŏt’ə-mē) n. Surgical division of the phrenic nerve to cause paralysis of the diaphragm on one side.

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