cleft (kleft) a fissure, especially one occurring during embryonic development.
facial cleft,
anal cleft gluteal c.
branchial cleft
1. any of the slitlike openings in the gills of fish, between the branchial arches.
facial cleft
1. any of the clefts between the embryonic prominences that normally unite to form the face.
2. prosoposchisis; failure of union of a facial cleft, causing a developmental defect such as cleft cheek or lip.
gluteal cleft that which separates the buttocks.
subneural clefts evenly spaced lamella-like clefts within the primary synaptic cleft, formed by infoldings of the sarcolemma into the underlying muscle sarcolemma.
synaptic cleft
1. a narrow extracellular cleft between the presynaptic and postsynaptic membranes.
2. synaptic trough.
visceral cleft pharyngeal groove.
facial cleft,
n See cleft, facial.
facial
of or pertaining to the face.
facial abscess
see malar abscess.
facial cleft
very uncommon congenital defect of failure of closure at various facial sites, e.g. cleft from corner of mouth to ear on the same side.
facial dermatitis
see contagious porcine pyoderma.
facial eczema
hepatogenous photosensitization in sheep and cattle, by the ingestion of sporidesmin from the the fungus Pithomyces chartarum. It grows best on litter in pasture composed of plants with heavy leaf growth, e.g. perennial rye and white clover. Many animals die early because of the hepatic insufficiency combined with the widespread tissue damage.
facial fold dermatitis
see fold dermatitis.
facial hyperostosis
see hyperparathyroidism.
idiopathic facial dermatosis of Persian cats
inflammation of the periocular, perioral skin and sometimes chin associated with the accumulation of black material matting the skin. External ear canals may also become involved. The cause is unknown.
facial nerve
the seventh cranial nerve; its motor fibers supply the muscles of facial expression. These are a complex group of cutaneous muscles that move the eyebrows, eyelids, ears, corners of the mouth, and other parts of the face. The sensory fibers of the facial nerve provide a sense of taste in the forward two-thirds of the tongue, and also supply the submaxillary, sublingual and lacrimal glands for secretion. See also Table 14.
facial nerve root granuloma
chronic, inflammatory disease in calves characterized by space-occupying, granulomatous lesions on the facial and vestibulocochlear nerves and clinical signs of facial paralysis and balance abnormalities.
facial paralysis
characterized by unilateral signs related to facial movements and asymmetry of the face. There is droopiness of the ear and an inability to move it, drooping of the eyelid, sagging and drooping of the lower lip and deviation of the nose to the normal side.
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Facial paralysis in a horse. By permission from Knottenbelt DC, Pascoe RR, Diseases and Disorders of the Horse, Saunders, 2003
facial sinus
see malar abscess.
facial sinusitis
infection and inflammation occurs secondarily to rhinitis or to damage to a horn or dehorning. Neoplasia of a horn core may extend into the sinus.
facial tumor disease
see tasmanian devil facial tumor disease.
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