| Sibson | Francis, English anatomist, 1814-1876. See: Sibson's aponeurosis, Sibson's fascia, Sibson's groove, Sibson's muscle, Sibson's aortic vestibule. (05 Mar 2000) |
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| Sibson's aortic vestibule | Synonym: aortic vestibule. (05 Mar 2000) |
| Sibson's aponeurosis | The thickened portion of endothoracic fascia extending over the cupola of the pleura and reinforcing it; it attaches to the inner border of the first rib and to the transverse process of the seventh cervical vertebra. Synonym: membrana suprapleuralis, Sibson's aponeurosis, Sibson's fascia. (05 Mar 2000) |
| Sibson's fascia | The thickened portion of endothoracic fascia extending over the cupola of the pleura and reinforcing it; it attaches to the inner border of the first rib and to the transverse process of the seventh cervical vertebra. Synonym: membrana suprapleuralis, Sibson's aponeurosis, Sibson's fascia. (05 Mar 2000) |
| Sibson's groove | A groove occasionally seen on the outer side of the thorax formed by the prominent lower border of the pectoralis major muscle. (05 Mar 2000) |
| Sibson's muscle | <anatomy> An occasional independent muscular fasciculus between the scalenus anterior and medius, and having the same action and innervation. Synonym: musculus scalenus minimus, Albinus' muscle, Sibson's muscle, smallest scalene muscle. (05 Mar 2000) |
| acetabular notch | A gap in the inferior the margin of the acetabulum. Synonym: incisura acetabuli, cotyloid notch. (05 Mar 2000) |
| angular notch | A sharp angular depression in the lesser curvature of the stomach at the junction of the body with the pyloric canal. Synonym: incisura angularis, sulcus angularis. (05 Mar 2000) |
| antegonial notch | The highest point of the notch or concavity of the lower border of the ramus where it joins the body of the mandible. (05 Mar 2000) |
| anterior cerebellar notch | A wide, shallow notch on the anterior surface of the cerebellum occupied laterally by the superior cerebellar peduncles and the inferior quadrigeminal bodies medially. Synonym: anterior notch of cerebellum, incisura cerebelli anterior, semilunar notch. (05 Mar 2000) |
| anterior notch of cerebellum | A wide, shallow notch on the anterior surface of the cerebellum occupied laterally by the superior cerebellar peduncles and the inferior quadrigeminal bodies medially. Synonym: anterior notch of cerebellum, incisura cerebelli anterior, semilunar notch. (05 Mar 2000) |
| anterior notch of ear | A notch between the supratragic tubercle and the crus of the helix. Synonym: incisura anterior auris, anterior auricular groove, auricular notch, sulcus auriculae anterior. (05 Mar 2000) |
| aortic notch | The notch in a sphygmographic tracing caused by rebound following closure of the aortic valves. (05 Mar 2000) |
| auricular notch | A notch between the supratragic tubercle and the crus of the helix. Synonym: incisura anterior auris, anterior auricular groove, auricular notch, sulcus auriculae anterior. (05 Mar 2000) |
| cardiac notch | A deep notch between the oesophagus and fundus of the stomach. Synonym: incisura cardiaca. (05 Mar 2000) |