Discussion
Ask a question about 'Papilla'
Start a new discussion about 'Papilla'
Answer questions from other users
|
The term
papilla (plural: papillae) generally means a
nippleIn its most general form, a nipple is a structure from which a fluid emanates. More specifically, it is the projection on the breasts of a mammal by which breast milk is delivered to a mother's young.-Anatomy:...
-like structure, and may refer to:
- Mammary papilla, or nipple
In its most general form, a nipple is a structure from which a fluid emanates. More specifically, it is the projection on the breasts of a mammal by which breast milk is delivered to a mother's young.-Anatomy:...
- Interdental papilla
The interdental papilla, also known as the gingival papilla, is that part of the gingiva that exists coronal to the free gingival margin on the buccal and lingual surfaces of the teeth....
, part of the gingiva between teeth
- Dental papilla
The dental papilla is a condensation of ectomesenchymal cells called odontoblasts, seen in histologic sections of a developing tooth. It lies below a cellular aggregation known as the enamel organ. The dental papilla appears after 8-10 weeks intra uteral life...
, cells involved in a developing tooth
- Renal papilla
In the kidney, the renal papilla is the location where the Medullary pyramids empty urine into the renal pelvis. Histologically it is marked by medullary collecting ducts converging to channel the fluid. Transitional epithelium begins to be seen....
, in the kidney
- Lacrimal papilla
At the basal angles of the lacus lacrimalis, on the margin of each eyelid, is a small conical elevation, the lacrimal papilla, the apex of which is pierced by a small orifice, the punctum lacrimale, the commencement of the lacrimal duct.-External links:*...
, on the eyelid
- Major duodenal papilla
The common bile duct and the pancreatic duct together perforate the medial side of the second portion of the duodenum obliquely, some 7 to 10 cm below the pylorus, forming a structure called the major duodenal papilla....
, the opening of the pancreatic duct and common bile duct into the duodenum
- Minor duodenal papilla
The minor duodenal papilla is the opening of the accessory pancreatic duct into the duodenum. It is sometimes absent, and often nonfunctional.The other names of minor duodenal papilla is Santorini's minor caruncle....
, the opening of the accessory pancreatic duct into the duodenum
- Hair papilla, at the base of every hair follicle
A hair follicle is a part of the skin that grows hair by packing old cells together. Attached to the follicle is a sebaceous gland, a tiny sebum-producing gland found everywhere except on the palms, lips and soles of the feet...
- papillary thyroid cancer
Papillary thyroid cancer is the most common type of thyroid cancer. It occurs more frequently in women and presents in the 30-40 year age group...
, a type of disease
- papillary muscle
In anatomy, the papillary muscles of the heart serve to limit the movements of the mitral and tricuspid valves. These muscles contract to tighten the chordae tendineae, which in turn prevent inversion. This occurs in response to pressure gradients...
, a muscle in the heart
On the tongue
- Circumvallate papillae
The circumvallate papillae are of large size , and vary from eight to twelve in number.They are situated on the dorsum of the tongue immediately in front of the foramen cecum and sulcus terminalis, forming a row on either side; the two rows run backward and medially, and meet in the midline, like...
(contains taste buds)
- Fungiform papilla
The fungiform papillae are mushroom shaped papillae on the tongue. They are located on the top surface of the tongue, scattered throughout the filiform papilla but mainly at the tip and lateral margins of the tongue. They have taste buds on their superior surface which can distinguish the five...
(contains taste buds)
- Filiform papilla
Lingual papillae are small prominences on the surface of the tongue. There are four kinds, one of which is the filiform papillae.The filiform papillae are thin, long "V"-shaped cones that don't contain taste buds but are the most numerous...
(does not contain taste buds)
- Foliate papillae
Taste-buds, the end-organs of the gustatory sense, are scattered over the mucous membrane of the mouth and tongue at irregular intervals. They occur especially in the sides of the vallate papillae. There is a localized area at the side of the base of the tongue, the foliate papillae, in which they...
(contains taste buds)
On a fish
- Genital papilla, a small tube on fish anatomy
Fish anatomy is primarily governed by the physical characteristics of water, which is much denser than air, holds a relatively small amount of dissolved oxygen, and absorbs light more than air does.- Fins :...
, through which eggs or sperm are released