A transient cluster of cells in the central part of the dental epithelium facing the dental mesenchyme, which acts as an organizing center, providing positional information for tooth morphogenesis and regulating the growth of tooth cusps.
endolymphatic duct +
endolymphatic system
entorhinal cortex +
epibranchial ganglion +
epidermal egg tooth
epidermal intermediate stratum
epidermal placode
epidermal ridge of digit
epidermal scale +
epidermal superficial stratum
epidermal-dermal junction +
epidermis of feather follicle +
epidermis suprabasal layer
epioccipital bridge
epioccipital posterior process
epiotic +
epiphysial cluster
external acoustic meatus +
external acoustic meatus osseus part
external cellular layer
external naris +
external nose +
extremitas anterior
eye muscle +
eye trabecular meshwork +
eyeball of camera-type eye +
eyelid +
eyelid blood vessel
eyelid gland +
falx cerebelli
falx cerebri
fasciola cinerea
fasciolar gyrus
feather +
feather barb +
feather barbicel
feather barbule +
feather bud, dermal component +
feather calamus
feather shaft +
feather vane
filum terminale +
filum terminale externum
filum terminale internum
fin fold pectoral fin bud +
fin hook +
flexural organ
floor plate +
floor plate of neural tube +
foramen cecum of frontal bone
forebrain midbrain boundary neural keel +
forebrain midbrain boundary neural plate +
forebrain midbrain boundary neural rod +
forebrain midbrain boundary neural tube
forebrain neural keel +
forebrain neural rod +
forebrain neural tube
forebrain-midbrain boundary
foregut duodenum mesentery
fourth ventricle aperture +
fovea centralis +
foveola of retina
frontal nerve (branch of ophthalmic)
future hindbrain meninx +
ganglion of central nervous system +
gelatinous layer of statoconial membrane
gigantocellular part of magnocellular preoptic nucleus