Papilla (Latin, '

nipple The nipple is a raised region of tissue on the surface of the breast from which, in females, milk leaves the breast through the lactiferous ducts to feed an infant. The milk can flow through the nipple passively or it can be ejected by smooth ...

') or papillae may refer to:

In animals

Papilla (fish anatomy) The papilla, in certain kinds of fish, particularly rays, sharks, and catfish, are small lumps of dermal tissue found in the mouth, where they are "distributed uniformly on the tongue, palate, and pharynx".B. G. Kapoor, H. E. Evans, E. A. Pevzner "T ...

, in the mouth of fish *

Basilar papilla The basilar papilla is the auditory sensory organ of lizards, amphibians, and birds, which is homologous to the organ of Corti in mammals. The basilar papilla is composed of cells called "hair cells" which are actually epithelial Epithelium ...

, a sensory organ of lizards, amphibians and fish * Dental papilla, in a developing tooth *

Dermal papillae The dermis or corium is a layer of skin between the epidermis (with which it makes up the cutis) and subcutaneous tissues, that primarily consists of dense irregular connective tissue and cushions the body from stress and strain. It is divided in ...

, part of the skin * Major duodenal papilla, in the duodenum *

Minor duodenal papilla The minor duodenal papilla is the opening of the accessory pancreatic duct into the descending second section of the duodenum. Structure The minor duodenal papilla is contained within the second part of the duodenum. It is situated 2 cm prox ...

, in the duodenum * Genital papilla, a feature of the external genitalia of some animals *

Interdental papilla The interdental papilla, also known as the interdental gingiva, is the part of the gums (gingiva) that exists coronal to the free gingival margin on the buccal and lingual surfaces of the teeth A tooth ( : teeth) is a hard, calcified struc ...

, part of the gums * Lacrimal papilla, on the bottom eyelid * Lingual papillae, small structures on the upper surface of the tongue *

Renal papilla The renal medulla is the innermost part of the kidney. The renal medulla is split up into a number of sections, known as the renal pyramids. Blood enters into the kidney via the renal artery, which then splits up to form the segmental arteries whi ...

, part of the kidney

In plants and fungi

Papilla (mycology) '' Cantharellula umbonata'' has an umbo. The cap of '' Psilocybe makarorae'' is acutely papillate.">papillate.html" ;"title="Psilocybe makarorae'' is acutely papillate">Psilocybe makarorae'' is acutely papillate. An umbo is a raised area in the ...

, a nipple-shaped protrusion in the center of the cap * Stigmatic papilla, part of the

stigma (botany) The stigma () is the receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower. Description The stigma, together with the style and ovary (typically called the stigma-style-ovary system) comprises the pistil, ...

In animals

In plants and fungi

See also