1. A term applied to a number of anatomical structures having a more or less pyramidal shape.pyramis [NA]; 2. An obsolete term denoting the petrous portion of the temporal bone. [G. pyramis (pyramid-), a pyramid]
anterior p. p. of medulla oblongata
cerebellar p. p. of vermis
Ferrein's p. medullary ray
Lallouette's p. pyramidal lobe of thyroid gland
p. of light a triangular area at the anterior inferior part of the tympanic membrane, running from the umbo to the periphery, where there is seen a bright reflection of light.cone of light, light reflex (3), Politzer's luminous cone, red reflex, Wilde's triangle;
Malacarne's p. a lobule on the undersurface of the cerebellum, the posterior portion of the vermis.
malpighian p. renal p
p. of medulla oblongata an elongated, white prominence on the ventral surface of the medulla oblongata on either side along the anterior median fissure, corresponding to the pyramidal tract.pyramis medullae oblongatae [NA], anterior column of medulla oblongata, anterior p;
medullary p. renal p
olfactory p. a small area of gray matter situated between the roots of the olfactory tracts; it is continuous caudally with the anterior perforated substance.
petrous p. petrous part of temporal bone
population p. graphical representation of the age and sex composition of a population, constructed by computing the percentage distribution of the population in each age and sex class.
posterior p. of the medulla fasciculus gracilis
renal p. one of a number of pyramidal masses seen on longitudinal section of the kidney; collectively, they constitute the renal medulla, and contain part of the secreting tubules and the collecting tubules.pyramis renalis [NA], malpighian p., medullary p;
p. of thyroid pyramidal lobe of thyroid gland
p. of tympanum eminentia pyramidalis
p. of vermis a subdivision of the inferior vermis of the cerebellum between the tuber and the uvula.pyramis vermis [NA], cerebellar p;
p. of vestibule the upper triangular extremity of the crista vestibuli.pyramis vestibuli [NA];
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