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A fenestra (fenestration; pl.: fenestrae or fenestrations) is any small opening or pore, commonly used as a term in the biological sciences. [1] It is the Latin word for "window", and is used in various fields to describe a pore in an anatomical structure.
Fenestration or fenestrate may refer to: Fenestration (architecture), relating to openings in a building; Fenestra, in anatomy, medicine, and biology, any small opening in an anatomical structure; Leaf window, or fenestration, a translucent or transparent area in a plant leaf
A flowering Fenestraria rhopalophylla, so named due to the translucent leaf window on the tips of its modified leaf.. Leaf window, also known as epidermal window, [1] and fenestration, [2] [3] is a specialized leaf structure consisting of a translucent area through which light can enter the interior surfaces of the leaf where photosynthesis can occur.
Such tissue is commonly formed, for example, at the base of a petiole or pedicel. acaulescent Having no apparent stem, or at least none visible above the ground surface. [2] Examples include some species of Oxalis, [5] Nolina, [6] and Yucca. [7] Antonym: caulescent (possessing stem). accrescent
The major reptile group Diapsida, for example, is defined by the presence of two temporal fenestrae on each side of the skull. The infratemporal fenestra , also called the lateral temporal fenestra or lower temporal fenestra , is the lower of the two and is exposed primarily in lateral (side) view.
Perforation seen in Monstera deliciosa. Perforate leaves, sometimes called fenestrate, occur naturally in some species of plants.Holes develop as a leaf grows. The size, shape, and quantity of holes in each leaf can vary greatly depending on the species and can even vary greatly within a given
Diapsids ("two arches") are a clade of sauropsids, distinguished from more primitive eureptiles by the presence of two holes, known as temporal fenestrae, in each side of their skulls.
Reptiles are classified according to the pattern of fenestration in the temporal region of the skull. Testudines are placed in the subclass Anapsida because they lack fenestration. [2] There are suggestions that this lack of fenestration is a secondary characteristic and that turtles belong in Diapsida. [3]