papilla

Examples of papilla in the following topics:

• Reception and Transduction

  • A taste bud is a cluster of gustatory receptors (taste cells) that are located within the bumps on the tongue called papillae (singular: papilla) .
  • There are several structurally-distinct papillae.
  • The large circumvallate papillae contain up to 100 taste buds and form a V near the posterior margin of the tongue.
  • (a) Foliate, circumvallate, and fungiform papillae are located on different regions of the tongue.
  • (b) Foliate papillae are prominent protrusions on this light micrograph.

• Nephron: The Functional Unit of the Kidney

  • The collecting ducts amass contents from multiple nephrons, fusing together as they enter the papillae of the renal medulla.
  • Urine leaves the medullary collecting ducts through the renal papillae, emptying into the renal calyces, the renal pelvis, and finally into the bladder via the ureter.

• Characteristics and Evolution of Amphibians

  • Additional characteristics of amphibians include pedicellate teeth (teeth in which the root and crown are calcified, separated by a zone of noncalcified tissue) and a papilla amphibiorum and papilla basilaris (structures of the inner ear that are sensitive to frequencies below and above 10,00 hertz, respectively).

• Kidney Function and Physiology

  • The collecting ducts collect filtrate coming from the nephrons and fuse in the medullary papillae.
  • From here, the papillae deliver the filtrate, now called urine, into the minor calyces that eventually connect to the ureters through the renal pelvis.

• Tastes and Odors

  • These taste buds, located in papillae which are found across the tongue, are specific for the five modalities: salt, sweet, sour, bitter and umami.