| autonomic ganglia | Visceral ganglia. See: autonomic nervous system. (05 Mar 2000) |
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| basal ganglia | <anatomy> Three large subcortical nuclei of the vertebrate brain: the putamen, the caudate nucleus and the globus pallidus. They participate in the control of movement along with the cerebellum, the corticospinal system and other descending motor systems. Lesions of the basal ganglia occur in a variety of motor disorders including Parkinson's disease and Huntingdon's chorea. (15 Nov 1997) |
| basal ganglia calcification | <radiology> Idiopathic: normal variant (50%), abnormal calcium metabolism, hyperparathyroidism, hypo-, pseudohypo-, and pseudo-pseudohypoparathyroidism, ToRCHS infection (especially CMV, toxo), tuberous sclerosis, Cockayne syndrome, Fahr syndrome (ferrocalcinosis), lipoid proteinosis (hyalinosis cutis) (12 Dec 1998) |
| cardiac ganglia | Parasympathetic ganglia of the cardiac plexus lying between the arch of the aorta and the bifurcation of the pulmonary artery. Synonym: ganglia cardiaca, Wrisberg's ganglia. (05 Mar 2000) |
| ganglia | <pathology> A mass of nerve tissue (grey matter) or a group of nerve cell bodies. <anatomy> Also refers to specific groups within the brain or spinal cord (as basal ganglia). Ganglion is the singular of ganglia. (16 Dec 1997) |
| ganglia aorticorenalia | A semidetached portion of the coeliac ganglia, at the origin of each renal artery; contains the sympathetic neurons innervating the vasculature of the kidney. Synonym: ganglia aorticorenalia. (05 Mar 2000) |
| ganglia, autonomic | Clusters of neurons and their processes in the autonomic nervous system. In the autonomic ganglia, the preganglionic fibres from the central nervous system synapse onto the neurons whose axons are the postganglionic fibres innervating target organs. The ganglia also contain intrinsic neurons and supporting cells and preganglionic fibres passing through to other ganglia. (12 Dec 1998) |
| ganglia cardiaca | Parasympathetic ganglia of the cardiac plexus lying between the arch of the aorta and the bifurcation of the pulmonary artery. Synonym: ganglia cardiaca, Wrisberg's ganglia. (05 Mar 2000) |
| ganglia coeliaca | The largest and highest group of prevertebral sympathetic ganglia, located on the superior part of the abdominal aorta, on either side of the origin of the coeliac artery; contains sympathetic neurons whose unmyelinated postganglionic axons innervate the stomach, liver, gallbladder, spleen, kidney, small intestine, and ascending and transverse colon. H Synonym: ganglia coeliaca, semilunar ganglion, solar ganglia, Vieussens' ganglia, Willis' centrum nervosum. (05 Mar 2000) |
| ganglia intermedia | Small sympathetic ganglia most commonly found on the communicating branches in the cervical and lumbar region. Synonym: ganglia intermedia. (05 Mar 2000) |
| ganglia, invertebrate | Clusters of neuronal cell bodies in invertebrates. Invertebrate ganglia may also contain neuronal processes and non-neuronal supporting cells. Many invertebrate ganglia are favourable subjects for research because they have small numbers of functional neuronal types which can be identified from one animal to another. (12 Dec 1998) |
| ganglia lumbalia | Four or more ganglia on the medial border of the psoas major muscle on either side; they form, with the sacral and coccygeal ganglia and their interganglionic rami, the abdominopelvic sympathetic trunk. Synonym: ganglia lumbalia. (05 Mar 2000) |
| ganglia of autonomic plexuses | Autonomic ganglia lying in plexuses of autonomic fibres, e.g., the coeliac and inferior mesenteric ganglia of the sympathetic, and the small parasympathetic ganglia of the myenteric plexus. Synonym: ganglia plexuum autonomicorum. (05 Mar 2000) |
| ganglia of sympathetic trunk | The clusters of postganglionic neurons located at intervals along the sympathetic trunks, including the superior cervical, middle cervical, and cervicothoracic (stellate) ganglion, the thoracic, lumbar, and sacral ganglia, and the ganglion impar. Synonym: ganglia trunci sympathici, paravertebral ganglia. (05 Mar 2000) |
| ganglia, parasympathetic | Ganglia of the parasympathetic nervous system, including the ciliary, pterygopalatine, submandibular, and otic ganglia in the cranial region and intrinsic (terminal) ganglia associated with target organs in the thorax and abdomen. (12 Dec 1998) |