| isometric period of cardiac cycle | That period in which the muscle fibres do not shorten although the cardiac muscle is excited and the pressure in the ventricles rises, extending from the closure of the atrioventricular valves to the opening of the semilunar valves (isovolumic constriction) or the reverse (isovolumic relaxation). (05 Mar 2000) |
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| thoracic cardiac nerves | Part of the cardiopulmonary splanchnic nerves from the second to fifth segments of the thoracic sympathetic trunk that pass medially and anteriorly to enter the cardiac plexus; they convey postsynaptic sympathetic fibres to, and visceral afferent (pain) fibres from, the heart. Synonym: nervi cardiaci thoracici, upper thoracic splanchnic nerves. (05 Mar 2000) |
| edema, cardiac | A manifestation of congestive heart failure caused by increased venous and capillary pressures and often associated with the retention of sodium by the kidneys. (12 Dec 1998) |
| electric cardiac pacemaker | An electric device that can substitute for the normal cardiac pacemaker, controlling the heart's rhythm by artificial electric discharges. Synonym: electronic pacemaker. (05 Mar 2000) |
| external cardiac massage | Rhythmic compression of the heart between sternum and spine by depressing the lower sternum backward with the heels of the hands, the patient lying supine. Synonym: external cardiac massage. (05 Mar 2000) |
| 24-hour cardiac monitor | <apparatus> A recording device, worn by the patient for the purpose of monitoring the hearts rhythm and rate, over a period of 24 hours. (27 Sep 1997) |
| lymphatic ring of cardiac part of stomach | A group of lymph nodes surrounding the cardia of the stomach. Synonym: annulus lymphaticus cardiae, cardiac lymphatic ring. (05 Mar 2000) |
| anterior cervical intertransversarii muscles | Origin, anterior tubercle of cervical transverse process; insertion, anterior tubercle of next superior transverse process; action, abducts cervical vertebrae; nerve supply, ventral branch of cervical nerves. Synonym: musculi intertransversarii anteriores cervicis, anterior cervical intertransverse muscles. (05 Mar 2000) |
| anterior cervical intertransverse muscles | Origin, anterior tubercle of cervical transverse process; insertion, anterior tubercle of next superior transverse process; action, abducts cervical vertebrae; nerve supply, ventral branch of cervical nerves. Synonym: musculi intertransversarii anteriores cervicis, anterior cervical intertransverse muscles. (05 Mar 2000) |
| anterior cervical lymph nodes | The group of lymph nodes located in the anterior region of the neck, divided into superficial and deep groups. Synonym: nodi lymphatici cervicales anteriores. (05 Mar 2000) |
| anterior deep cervical lymph nodes | The lymph nodes near the larynx, trachea, and thyroid gland. Synonym: nodi lymphatici cervicales anteriores profundi. (05 Mar 2000) |
| anterior superficial cervical lymph nodes | The lymph nodes in the subcutaneous tissue of the anterior region of the neck. Synonym: nodi lymphatici cervicales anteriores superficiales. (05 Mar 2000) |
| anterior tubercle of cervical vertebrae | The anterior projection from the transverse process. Synonym: tuberculum anterius vertebrarum cervicalium. (05 Mar 2000) |
| ascending cervical artery | <anatomy, artery> Origin, usually a terminal branch of the thyrocervical trunk (along with interior thyroid artery); distribution, muscles of neck and spinal cord; anastomoses, branches of vertebral, occipital, ascending pharyngeal, and deep cervical. Synonym: arteria cervicalis ascendens, cervicalis ascendens. (05 Mar 2000) |
| ventral primary rami of cervical spinal nerves | See: ventral primary ramus of spinal nerve. Synonym: rami ventrales nervorum cervicalium. (05 Mar 2000) |