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Location of ovules inside a Helleborus foetidus flower. In seed plants, the ovule is the structure that gives rise to and contains the female reproductive cells. It consists of three parts: the integument, forming its outer layer, the nucellus (or remnant of the megasporangium), and the female gametophyte (formed from a haploid megaspore) in its center.
In some parts of Italy the scutum had been used since pre-historical times. [6] Polybius gave a description of the early second-century scutum BC: [7] The Roman panoply consists firstly of a shield (scutum), the convex surface of which measures 2.5 ft (76 cm) in width and 4 ft (120 cm) in length, the thickness at the rim being a palm's breadth ...
The scutum and scutellum are shining and slightly coppery, adorned with short brassy yellow hairs. The sides are also shining, featuring short yellow to yellow-brown hairs. (Refer to the body anatomy section below.) [6] Wing The cell c is bare from about the basal one-sixth, while cell bm is at least one-third bare.
Scutes on an alligator foot. A scute (/ s k j uː t / ⓘ) or scutum (Latin: scutum; plural: scuta "shield") is a bony external plate or scale overlaid with horn, as on the shell of a turtle, the skin of crocodilians, and the feet of birds.
In human anatomy, Prussak's space is the small middle ear recess, bordered laterally by the flaccid part of Shrapnell's membrane, superiorly by the scutum (a sharp bony spur that is formed by the superior wall of the external auditory canal) and lateral malleal ligament, inferiorly by the lateral process of the malleus, and medially by the neck of the malleus.
Simple columnar epithelium is a single layer of columnar epithelial cells which are tall and slender with oval-shaped nuclei located in the basal region, attached to the basement membrane. In humans, simple columnar epithelium lines most organs of the digestive tract including the stomach, and intestines.
The cell on the left is going through mitosis and its chromosomes have condensed. Cell nucleus: A cell's information center, the cell nucleus is the most conspicuous organelle found in a eukaryotic cell. It houses the cell's chromosomes, and is the place where almost all DNA replication and RNA synthesis (transcription) occur.
Schematic reconstruction of Ovatoscutum concentricum. Ovatoscutum was first described by Martin Glaessner and Mary Wade in 1966, and this team tentatively interpreted it as a chondrophoran pneumatophore.