Papilla (Latin, '

nipple The nipple is a raised region of tissue on the surface of the breast from which, in lactating females, breast milk, milk from the mammary gland leaves the body through the lactiferous ducts to Breastfeeding, nurse an infant. The milk can flow th ...

') or papillae may refer to:

In animals

* Papilla (fish anatomy), in the mouth of fish * Papilla (worms), small bumps on the surface of certain worms * Basilar papilla, 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 ...

, part of the skin structure * Major duodenal papilla, in the duodenum * Minor duodenal papilla, in the duodenum * Genital papilla, a feature of the external genitalia of some animals * Mammary papilla or nipple, a raised region of tissue on the surface of the breast *

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 mesial and distal surfaces of the teeth. The interdental papillae fill in the area betw ...

, part of the gums *

Lacrimal papilla The lacrimal papilla is the small rise in the bottom (inferior) and top (superior) eyelid just before it ends at the corner of the eye closest to the nose. At the medial edge of it is the lacrimal punctum, a small hole that lets tears drain into th ...

, on the bottom eyelid *

Lingual papillae Lingual papillae (: papilla, ) are small structures on the upper surface of the tongue that give it its characteristic rough texture. The four types of papillae on the human tongue have different structures and are accordingly classified as circum ...

, small structures on the upper surface of the tongue *

Renal papilla In humans, the kidneys are two reddish-brown bean-shaped blood-filtering organs that are a multilobar, multipapillary form of mammalian kidneys, usually without signs of external lobulation. They are located on the left and right in the retr ...

, part of the kidney * Tumor papilla, consisting of tumor cells surrounding a fibrovascular core

In plants and fungi

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

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

stigma (botany) The stigma (: stigmas or stigmata) is the receptive tip of a Gynoecium#Carpels, carpel, or of several fused carpels, in the gynoecium of a flower. Description The stigma, together with the Style (botany), style and ovary (botany), ovary (typ ...

In animals

In plants and fungi

See also