Information about Parietal

The parietal lobe is a lobe in the brain. It is positioned above (superior to) the occipital lobe and behind (posterior to) the frontal lobe.

The parietal lobe integrates sensory information from different modalities, particularly determining spatial sense and navigation.
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The parietal bones are bones in the human skull and form, by their union, the sides and roof of the cranium. Each bone is irregularly quadrilateral in form, and has two surfaces, four borders, and four angles.

Surfaces

External

The external surface [Fig.
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Parietal scale refers to the scales of a snake which are on the head of the snake and are connected to the frontals towards the posterior. These scales are analogous to and take their name from the parietal bone which forms the roof and sides of the cranium in humans.
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Serpentes
Linnaeus, 1758

Infraorders and Families

• Alethinophidia - Nopcsa, 1923
• Acrochordidae- Bonaparte, 1831

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Parietal cells (also called oxyntic cells) are the stomach epithelium cells which secrete gastric acid and intrinsic factor.

Acid production

Parietal cells produce gastric acid (hydrochloric acid) in response to histamine (via H₂
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pleurae. The outer pleura is attached to the chest wall and is known as the parietal pleura; the inner one is attached to the lung and other visceral tissues and is known as the visceral pleura.
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The pericardium is a double-walled sac that contains the heart and the roots of the great vessels.

Layers

There are two layers to this sac: the fibrous pericardium and the serous pericardium.
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parietal eye, also known as a parietal organ or third-eye is a part of the epithalamus present in some animal species. The eye may be photoreceptive and is usually associated with the pineal gland, regulating circadian rhythmicity and hormone production for
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Neck frill is the popular term for the relatively extense margin seen on the back of the heads of reptiles with either a bony support such as those present on the skulls of dinosaurs of the suborder Marginocephalia or a cartilaginous one as in the Frill-necked Lizard.
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Dinosauria *
Owen, 1842

Orders & Suborders

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Marginocephalia
Sereno, 1986

Sub-clades

• Ceratopsia
• Pachycephalosauria
  

Marginocephalia ("fringed heads") is a clade of ornithischian dinosaurs that includes the thick-skulled pachycephalosaurids, and horned ceratopsians.
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