Examples of reticular region in the following topics:
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- The dermis is structurally divided into two areas: a superficial area adjacent to the epidermis, called the papillary region, and a deep, thicker area known as the reticular region.
- The reticular region lies under the papillary region and is usually much thicker.
- The reticular region receives its name from the dense concentration of collagenous, elastic, and reticular fibers that weave throughout it.
- Blood vessels that supply the capillaries of the papillary region run through the reticular region.
- Blood vessels that supply the capillaries of the papillary region are seen running through the reticular layer.
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- The reticular formation is a region in the pons involved in regulating the sleep-wake cycle and filtering incoming stimuli to discriminate irrelevant background stimuli.
- The raphe nuclei form a ridge in the middle of the
reticular formation, and directly to its periphery, there is a division called
the medial reticular formation.
- The medial reticular formation is large, has long ascending
and descending fibers, and is surrounded by the lateral reticular formation.
- Reticular formation nuclei that modulate activity of the cerebral cortex are part of the reticular activating system.
- Describe the functions of the reticular formation region of the pons
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- The dermis consists of a papillary and a reticular layer that serve to protect and cushion the body from stress and strain.
- They are the papillary layer (the upper layer) and the reticular layer (the lower layer).
- The reticular layer serves to strengthen the skin and also provides our skin with elasticity.
- The reticular layer also contains hair follicles, sweat glands, and sebaceous glands.
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- Loose connective tissue is divided into 1) areolar, 2) adipose, 3)
reticular.
- When a body region is inflamed, the areolar tissue in the area soaks up the excess fluid as a sponge and the affected area swells and becomes puffy, a condition called edema.
- This tissue resembles areolar connective tissue, but the only fibers in its matrix are the reticular fibers, which form a delicate network.
- The reticular tissue is limited to certain sites in the body, such as internal frameworks that can support lymph nodes, spleen, and bone marrow.
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- In anatomical sections, a nucleus shows up as a region of gray matter, often bordered by white matter.
- For example, the reticular nucleus of the thalamus is a thin layer of inhibitory neurons that surround the thalamus.
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- The integumentary system distinguishes, separates, and protects the organism from its surroundings, but also plays a key metabolic function, as the major region for vitamin D production.
- Beneath this, the dermis comprises two sections, the papillary and reticular layers, and contains connective tissues, vessels, glands, follicles, hair roots, sensory nerve endings, and muscular tissue.
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- Spino-reticulo-thalamo-cortical
(part of the ascending reticular arousal
system, also known as ARAS).
- The corticospinal tract also contains the Betz cell (the largest pyramidal cells) that are not found in any other region of the body.
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- Reticular fibers are short, fine collagenous fibers that can branch extensively to form a delicate network.
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- Reticular fibers or reticulin is a histological term used to describe a type of fiber in connective tissue composed of type III collagen.
- Reticular fibers crosslink to form a fine meshwork (reticulin).
- Reticular fiber is composed of one or more types of very thin and delicately woven strands of type III collagen.
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- They are called reticulocytes because of a reticular (mesh-like) network of ribosomal RNA that becomes visible under a microscope with certain stains such as new methylene blue.
- This schematic of a reticulocyte shows the reticular network of ribosomal RNA that differentiates the reticulocyte from mature red blood cells.