| Broca's facial angle | The angle formed by the intersection at the biauricular axis of lines drawn from the supraorbital point and the alveolar point. Synonym: Broca's angles. (05 Mar 2000) |
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| Broca's angle | More specifically see: Broca's basilar angle, Broca's facial angle, occipital angle of parietal bone. (05 Mar 2000) |
| Broca's basilar angle | The angle formed at the basion of lines drawn from the nasion and the alveolar point. Synonym: Broca's angles. (05 Mar 2000) |
| Topinard's facial angle | See: Jacquart's facial angle. (05 Mar 2000) |
| Jacquart's facial angle | A facial angle with the intersection always at the nasal spine point; additional variation uses the supraorbital point instead of the glabella, and this latter version is also known as ophryospinal facial angle or Topinard's facial angle. (05 Mar 2000) |
| facial angle | Any of several variously named and variously defined anatomical angle's that have been used to quantify facial protrusion, in dentistry, the angle formed by the intersection of the orbitomeatal (Frankfort) plane with the nasion-pogonion line (inner lower angle), which establishes the anteroposterior relation of the mandible to the upper face at the orbitomeatal plane. Synonym: Frankfort-mandibular incisor angle. (05 Mar 2000) |
| aphasia, broca | Loss of ability to speak and write caused by damage to the motor association cortex in the frontal lobe (broca's area). The deficit in language production ranges from almost complete muteness to a slowed, deliberate speech constructed from very simple grammatical structures. Patients use only key words: for "the large gray cat" the patient with broca's aphasia may say "gray cat". (kandel et al., principles of neural science, 3d ed, p847) (12 Dec 1998) |
| Broca, Pierre | <person> French surgeon, neurologist, and anthropologist, 1824-1880. See: Broca's angles, Broca's aphasia, Broca's basilar angle, Broca's facial angle, Broca's area, Broca's parolfactory area, Broca's diagonal band, Broca's centre, Broca's field, Broca's fissure, Broca's formula, Broca's visual plane, Broca's pouch. (05 Mar 2000) |
| Broca's aphasia | <neurology> Motor aphasia due to a lesion of the motor speech centre (Broca's area) in the brain. (13 Nov 1997) |
| Broca's area | The posterior part of the inferior frontal gyrus of the left or dominant hemisphere, corresponding approximately to Brodmann's area 44; Broca identified this region as an essential component of the motor mechanisms governing articulated speech. Synonym: Broca's area, Broca's field, motor speech centre. (05 Mar 2000) |
| Broca's centre | The posterior part of the inferior frontal gyrus of the left or dominant hemisphere, corresponding approximately to Brodmann's area 44; Broca identified this region as an essential component of the motor mechanisms governing articulated speech. Synonym: Broca's area, Broca's field, motor speech centre. (05 Mar 2000) |
| Broca's diagonal band | A white fibre bundle descending in the precommissural septum toward the base of the forebrain, immediately rostral to the lamina terminalis; at the base, the bundle turns in the caudolateral direction; traveling through a ventral stratum of the innominate substance alongside the optic tract, it fades before reaching the amygdala. (05 Mar 2000) |
| Broca's field | The posterior part of the inferior frontal gyrus of the left or dominant hemisphere, corresponding approximately to Brodmann's area 44; Broca identified this region as an essential component of the motor mechanisms governing articulated speech. Synonym: Broca's area, Broca's field, motor speech centre. (05 Mar 2000) |
| Broca's fissure | The fissure surrounding Broca's convolution. (05 Mar 2000) |
| Broca's formula | A fully developed man (30 years old) should weigh as many kilograms as he is centimeters in height over and above 1 meter. (05 Mar 2000) |