A crest is any of various anatomical features appearing as a raised point or ridge, most prominently those on the
head
A head is the part of an organism which usually includes the ears, brain, forehead, cheeks, chin, eyes, nose, and mouth, each of which aid in various sensory functions such as sight, hearing, smell, and taste. Some very simple ani ...
or back of an animal.
*A part of a bone:
**
Sagittal crest
A sagittal crest is a ridge of bone running lengthwise along the midline of the top of the skull (at the sagittal suture) of many mammalian and reptilian skulls, among others. The presence of this ridge of bone indicates that there are excepti ...
**
Cnemial crest
**
Iliac crest
The crest of the ilium (or iliac crest) is the superior border of the wing of ilium and the superolateral margin of the greater pelvis.
Structure
The iliac crest stretches posteriorly from the anterior superior iliac spine (ASIS) to the posterio ...
**
Frontal crest
The frontal crest is a ridge on the internal surface of the squamous part of the frontal bone
The squamous part of the frontal bone is the superior (approximately two thirds) portion when viewed in standard anatomical orientation. There are two ...
**
Infratemporal crest
The lateral surface of the greater wing of the sphenoid is convex, and divided by a transverse ridge, the infratemporal crest, into two portions.
The superior or temporal portion, convex from above downward, concave from before backward, forms ...
**
Anterior lacrimal crest
**
Posterior lacrimal crest
The posterior lacrimal crest is a vertical bony ridge on the orbital surface of the lacrimal bone. It divides the bone into two parts. It gives origin to the lacrimal part of the orbicularis oculi muscle.
Structure
The posterior lacrimal cres ...
**
Buccinator crest
*A feature on various animals:
**
Crest (feathers)
The crest is a prominent feature exhibited by several bird species on their heads. It is distinct from features such as casques and cockscombs - sometimes erroneously referred to as "crests", which are bony and fleshy structures respectively.
...
**
Display feature or
thermoregulatory feature in various reptiles
**
Sail (anatomy), also known as ''crest'' in some animals
**The point of a horse's neck where the
mane grows from
*
Neural crest
The neural crest is a ridge-like structure that is formed transiently between the epidermal ectoderm and neural plate during vertebrate development. Neural crest cells originate from this structure through the epithelial-mesenchymal transition, ...
, a temporary group of cells unique to vertebrates that arise from the embryonic
ectoderm
The ectoderm is one of the three primary germ layers formed in early embryonic development. It is the outermost layer, and is superficial to the mesoderm (the middle layer) and endoderm (the innermost layer). It emerges and originates from the o ...
cell layer
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