| fissura transversa cerebelli | The cleft caused by the protrusion of the anterior lobe of the cerebellum over the superior and middle cerebellar peduncles. Synonym: fissura transversa cerebelli. (05 Mar 2000) |
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| fissura transversa cerebri | The triangular space between the corpus callosum and fornix above and the dorsal surface of the thalamus below, which is bounded laterally by the choroid fissure of the lateral ventricle, lined by pia mater, and opens caudally into the cistern of the great cerebral vein of the subarachnoid space. Synonym: fissura transversa cerebri. (05 Mar 2000) |
| fissura tympanomastoidea | A fissure separating the tympanic portion from the mastoid portion of the temporal bone; it transmits the auricular branch of the vagus nerve. Synonym: fissura tympanomastoidea, auricular fissure, tympanomastoid suture. (05 Mar 2000) |
| fissura tympanosquamosa | The fissure separating the tympanic part of the temporal bone from the squamous part; it is continuous medially with the petrotympanic fissure and the petrosquamous fissure. Synonym: fissura tympanosquamosa, tympanosquamous fissure. (05 Mar 2000) |
| fissurae cerebelli | The deep furrows which divide the lobules of the cerebellum. See: postcentral fissure, primary fissure of cerebellum, secondary fissure of cerebellum. Synonym: fissurae cerebelli. (05 Mar 2000) |
| fissural | Relating to a fissure. (05 Mar 2000) |
| fissural cyst | A cyst derived from epithelial remnants entrapped along the fusion line of embryonal processes. Synonym: inclusion cyst. (05 Mar 2000) |
| fissuration | <anatomy> The act of dividing or opening; the state of being fissured. Source: Websters Dictionary (01 Mar 1998) |