| jugular gland | A firm supraclavicular lymph node, especially on the left side, sufficiently enlarged that it is palpable from the cutaneous surface; such a lymph node is so termed because it may be the first recognised presumptive evidence of a malignant neoplasm in one of the viscera. A signal node that is known to contain a metastasis from a malignant neoplasm is sometimes designated by an old eponym, Troisier's ganglion. Synonym: jugular gland, Virchow's node. (05 Mar 2000) |
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| jugular glomus | A microscopic collection of chemoreceptor tissue in the adventitia of the jugular bulb; a tumour of this glomus may cause paralysis of the vocal cords, attacks of dizziness, blackouts, and nystagmus. Synonym: glomus jugulare. (05 Mar 2000) |
| jugular lymphatic trunk | Lymphatic vessel on each side, conveying the lymph from the head and neck; that on the right side empties into the right lymphatic duct, that on the left into the thoracic duct. Synonym: truncus jugularis, jugular duct. (05 Mar 2000) |
| jugular nerve | <anatomy, nerve> A communicating branch between the superior cervical ganglion of the sympathetic nerve, the superior ganglion of the vagus nerve, and the inferior ganglion of the glossopharyngeal nerve. Synonym: nervus jugularis. (05 Mar 2000) |
| jugular notch of occipital bone | The notch in the occipital bone which forms one boundary of the jugular foramen. Synonym: incisura jugularis ossis occipitalis. (05 Mar 2000) |
| jugular notch of temporal bone | The notch in the temporal bone which forms one boundary of the jugular foramen. Synonym: incisura jugularis ossis temporalis. (05 Mar 2000) |
| jugular plexus | A lymphatic plexus which includes the deep cervical group of lymph nodes, with their afferent and efferent vessels, extending along the internal jugular vein. (carotid sheath). Synonym: plexus jugularis. (05 Mar 2000) |
| jugular process | A short process jutting out from the posterior part of the condyle of the occipital bone, its anterior border forming the posterior boundary of the jugular foramen. Synonym: processus jugularis. (05 Mar 2000) |
| jugular pulse | The venous pulse as observed in the jugular veins of the neck, usually the deep jugular veins. (05 Mar 2000) |
| jugular tubercle | An oval elevation on the cerebral surface of the lateral part of the occipital bone, on either side of the foramen magnum above the hypoglossal canal. Synonym: tuberculum jugulare. (05 Mar 2000) |
| jugular veins | Veins in the neck which drain the brain, face, and neck into the brachiocephalic or subclavian veins. (12 Dec 1998) |
| jugular venous arch | A connecting vein between the two anterior jugular veins in the suprasternal space. Synonym: arcus venosus juguli. (05 Mar 2000) |
| jugular wall of middle ear | The floor of the tympanic cavity; a thin plate of bone separating the tympanic cavity from the jugular fossa. Synonym: paries jugularis cavi tympani, fundus tympani, inferior wall of tympanic cavity, jugular wall of middle ear. (05 Mar 2000) |
| lateral jugular lymph nodes | Nodes of the lateral deep cervical group lying lateral to the internal jugular vein; they usually empty into the jugular trunk. Synonym: nodi lymphatici jugulares laterales. (05 Mar 2000) |
| aortic bulb | The dilated first part of the aorta containing the aortic semilunar valves and the aortic sinuses. Synonym: bulbus aortae, arterial bulb. (05 Mar 2000) |