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 mu ...

') or papillae may refer to:

In animals

* Papilla (fish anatomy), in the mouth of fish * Basilar papilla, a sensory organ of lizards, amphibians and fish *

Dental papilla In embryology and prenatal development, 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 ...

, 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 Major (commandant in certain jurisdictions) is a military rank of commissioned officer status, with corresponding ranks existing in many military forces throughout the world. When used unhyphenated and in conjunction with no other indicator ...

, 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 proxi ...

, in the duodenum *

Genital papilla The genital papilla is an anatomical feature of the external genitalia of some animals. In mammals In mammals, the genital papilla is a part of female external genitalia not present in humans, which appears as a small, fleshy flab of tissue. The p ...

, 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 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 (singular 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 c ...

, 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), 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, whi ...

In animals

In plants and fungi

See also