| basis modioli | The part of the modiolus enclosed by the basal turn of the cochlea; it faces the lateral end of the internal acoustic meatus. See: cochlear area. Synonym: basis modioli. (05 Mar 2000) |
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| basis ossis metacarpalis | The expanded proximal extremity of each metacarpal that articulates with one or more of the distal row of carpal bones. Synonym: basis ossis metacarpalis. (05 Mar 2000) |
| basis ossis metatarsalis | The expanded proximal extremity of each metatarsal bone; it articulates with one or more of the distal row of tarsal bones. Synonym: basis ossis metatarsalis. (05 Mar 2000) |
| basis ossis sacri | The upper end of the sacrum that articulates with the body of the fifth lumbar vertebra in the midline and the alae on either side. Synonym: basis ossis sacri. (05 Mar 2000) |
| basis patellae | The superior border of the patella to which the tendon of the rectus femoris attaches. Synonym: basis patellae. (05 Mar 2000) |
| basis pedunculi | The base of the midbrain consisting of the crus cerebri and substantia nigra. See: cerebral peduncle. (05 Mar 2000) |
| basis phalangis | The expanded proximal end of each phalanx in the hand or foot that articulates with the head of the next proximal bone in the digit. Synonym: basis phalangis. (05 Mar 2000) |
| basis prostatae | The broad upper surface of the prostate contiguous with the bladder wall. Synonym: basis prostatae. (05 Mar 2000) |
| basis pulmonis | The lower concave part of the lung that rests upon the convexity of the diaphragm. Synonym: basis pulmonis. (05 Mar 2000) |
| basis pyramidis renis | The outer broad part of a renal pyramid that lies next to the cortex. Synonym: basis pyramidis renis. (05 Mar 2000) |
| basis stapedis | The flat portion of the stapes that fits in the oval window. Synonym: basis stapedis, footplate, foot-plate. (05 Mar 2000) |
| basiscopic | Pointing towards the base (applied to the first lateral vein of a leaflet on the side nearer the leaf base). (09 Oct 1997) |
| basisolute | <botany> Prolonged at the base, as certain leaves. Origin: Basi- + solute, a. Source: Websters Dictionary (01 Mar 1998) |
| basisphenoid | <anatomy> The basisphenoid bone. Source: Websters Dictionary (01 Mar 1998) |
| basisphenoid bone | In comparative anatomy, the bone in the floor of the braincase in the region of the pituitary. See: body of sphenoid bone. (05 Mar 2000) |