Reticular connective tissues are arranged along with different cells in various organs like bone marrow, lymph nodes, spleen, liver, kidneys, and even under the skin. The reticular formation has afferent sensation from the spinothalamic ( temperature sensation, high-quality contact, and ache ) and dorsal column-medial lemniscus (proprioception, vibration, and place sense, and crude contact) pathways. 8. Medial and lateral reticular formation. Collagen type IV and V. They do not form fibrils; type IV collagen is present in basement membranes and type V is found in small amount in most connective tissue. Reticular formation pathways are split according to sensory and motor pathways (ARAS and DRS) and according to whether a nerve fiber or group of fibers enters or exits this part of the brainstem – in other words, whether the RF receives or transmits information. The reticular formation extending in neuraxis/brainstem is divided into medial division and lateral divisions. Collagen fibers are predominantly made of collagen type I. In the brainstem reticular formation, nerve cell bodies are scattered within the meshwork of nerve fibers/reticulum. It is made up of all the parts without specific functions of the organ - for example, connective tissue, blood vessels, nerves, ducts, etc. 2- Connective tissue fibers. The pia mater of the spinal cord is comprised of collagen and reticular fibers. The basement membrane acts as a mechanical barrier, preventing malignant cells … It … The nuclei are divided into three columns. Reticular fibers present in the tissues are fragile and together bond to form a meshwork or a fibrous skeleton (stroma). The lace-like network of reticular fibers. Reticular fibers are also formed from the same protein subunits as collagen fibers; however, these fibers remain narrow and are arrayed in a branching network. It plays an important role in attention and motivation. & 9. In the spleen, the … The reticular activating system connects the brain stem, to the cerebral cortex, through various neural paths. There are many brain nuclei in reticular formation and contains many projections fibers. Fibroblasts have also been shown to play a key role in the development, function, and repair of mammalian lymphoid organs (e.g., lymph nodes, spleen, and thymus), where a subset of cells called fibroblastic reticular cells (FRCs) form a network of extracellular matrix (ECM) fibers that define B‐cell and T‐cell compartments (Fletcher, Acton, & Knoblich, 2015). Reticular fibers are composed of type III collagen. Medical definition of reticular fiber: any of the thin branching fibers of connective tissue that form an intricate interstitial network ramifying through other tissues and organs. They are found throughout the body, but are most abundant in the reticular tissue of soft organs, such as liver and spleen, where they anchor and provide structural support to the parenchyma (the functional cells, blood vessels, and … Reticular Formation Nuclei. Divided into three regions- medulla oblongota, pons, and midbrain Each region contains cranial nerves & nuclei that control autonomic function Many nuclei are associated with reticular formation- white fibers what interconnect different areas throughout the brain. Many of these cell bodies are grouped together as nuclei, and have definite functions. Connective tissue: name elements of the ECM (extra cellular matrix), kinds of CT fibers & functions; describe CT ground substance & how it can vary in diff CT's. Efferent fibers from the reticular formation can convey sensory information to the cortex of a sleeping individual, which would awaken that person. 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