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Chapter 40 (852-860)
Chapter 40 (852-860)

... increase surface area. • The inner surfaces are the basal ends; they rest on an extracellular matrix called a basal lamina. • Some epithelial tissue, such as skin, gets much wear and tear, and thus has a high rate of cell division and replacement. ...
Frontal branch of facial nerve in relation to deep temporalis muscle
Frontal branch of facial nerve in relation to deep temporalis muscle

... a.ischemia to stria vascularis « ? b.ischemia of AICA ...
lab 2
lab 2

... – Groups of cells that are structurally and functionally the same – A combination of living and non-living material ...
English_Jaringan Tumbuhan 2005-01
English_Jaringan Tumbuhan 2005-01

... Through this, side by side cytoplasm cells (plasmodesmata) can be well-connected one another. ...
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Document

... – Cells scattered within a matrix that contains large amounts of ground substance – Strengthened by protein fibers such as: ...
Presentation
Presentation

... The main types of tissues in a complex animal are epithelial, connective, muscle, and nervous ...
NIH Public Access
NIH Public Access

... AD without depending on fetal tissues. However, ethical and safety concerns still exist. Recently, neuronal subtypes including dopaminergic and cholinergic neurons have been generated successfully through direct reprogramming of somatic cells by expression of developmental genes (15–17). The low yie ...
Ch.4 Powerpoint - St. Clair Schools
Ch.4 Powerpoint - St. Clair Schools

... unless stimulated by nerves • Cannot divide, however, new muscle fibers are produced through divisions of stem cells in adult tissue – partial repairs can occur after an injury ...
NUR2447 Notes 1. Review anatomy of skin Largest organ Situated
NUR2447 Notes 1. Review anatomy of skin Largest organ Situated

... • Disruption to protective barrier ...
AP Biology - MrMBiology
AP Biology - MrMBiology

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End of Chapter 5 Questions

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File - Anatomy & Physiology

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Tissue and Skin
Tissue and Skin

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Chapter 22
Chapter 22

... axons of the olfactory bulb neurons extend posteriorly and form the olfactory tracts which deliver nerve impulses to :the lateral olfactory area (which is probably the site of the primary olfactory area)where conscious awareness of smell begins, and thereafter to the frontal lobes where the sensatio ...
Tissues - Anatomy and Physiology
Tissues - Anatomy and Physiology

... impulses away from cell body) and 1 or more dendrites (carry impulses to cell body) ...
4 Histology - Orange Coast College
4 Histology - Orange Coast College

... Cells and the protein fibers reside within a material called ground substance. Nonliving material produced by the connective tissue cells. Primarily consists of molecules composed of protein and carbohydrate and variable amounts of water. May be viscous (blood), semisolid (cartilage), or solid (bone ...
Types of Tissues A tissue is composed of similarly specialized cells
Types of Tissues A tissue is composed of similarly specialized cells

... muscle fi bers. Muscle fi bers contain fi laments made of proteins called actin and myosin. The interaction of actin and myosin accounts for movement. The three types of vertebrate muscular tissue are skeletal, smooth, and cardiac 1-Skeletal muscle is also called voluntary muscle It is attached by t ...
A) Animal Tissue
A) Animal Tissue

... every exposed body surface. (in & out) - An epithelium always has one surface exposed either externally or toward an internal space. Ex. Skin and lining of blood vessels and stomach etc. - Function: provides physical protection Controls permeability ...
Histology Presentation
Histology Presentation

... Merocrine Glands – Also called eccrine glands, package their secretions in structures called secretory vesicles which travel to the apical surface of the glandular cell and release their secretion by exocytosis. – The glandular cells remain intact and are not damaged in any way by producing the secr ...
BIOL 203 Lab Quiz Question Bank
BIOL 203 Lab Quiz Question Bank

... The type of sensory neuron of the peripheral nervous system in which a single process is attached to the cell body; the process divides to form a peripheral processand a central process is a_________________________ neuron. The major type of neuron in the central nervous system is a_________________ ...
Biology 231
Biology 231

... Neural Tissue – detects changes in internal and external environment and responds by transmitting signals to other tissues to maintain homeostasis or cause a response 2 cell types: neurons – detect stimuli, create nerve impulses; composed of a cell body, with fibrous processes neuroglia – support n ...
MIDBRAIN
MIDBRAIN

... all the ascending tracts from the spinal cord or lower brain stem and many of the descending systems.  A large red nucleus receives crossed efferent fibers from the cerebellum and sends fibers to the thalamus and the contralateral spinal cord via the rubrospinal tract.  The red nucleus is an impor ...
Stem Cell Therapy - West Chester | Veterinary Medical Center
Stem Cell Therapy - West Chester | Veterinary Medical Center

... cascade that must be activated in order for the stem cells to circulate through the body and begin differentiation into new tissues.The 3 color light stimulates the cells to initiate repair from the moment the cells are injected into the animal’s body. Compared to other sources, adult stem cells fou ...
chapter 4 student notes
chapter 4 student notes

... and usually have a common embryonic origin 2. _____________: Science that deals with the study of tissues 3. _____________: Physician who specializes in laboratory studies of cells and tissues for changes that might indicate disease Introduction 1.While cells are basic functional and structural unit ...
< 1 ... 30 31 32 33 34 35 36 37 38 ... 41 >

Nerve guidance conduit

A nerve guidance conduit (also referred to as an artificial nerve conduit or artificial nerve graft, as opposed to an autograft) is an artificial means of guiding axonal regrowth to facilitate nerve regeneration and is one of several clinical treatments for nerve injuries. When direct suturing of the two stumps of a severed nerve cannot be accomplished without tension, the standard clinical treatment for peripheral nerve injuries is autologous nerve grafting. Due to the limited availability of donor tissue and functional recovery in autologous nerve grafting, neural tissue engineering research has focused on the development of bioartificial nerve guidance conduits as an alternative treatment, especially for large defects. Similar techniques are also being explored for nerve repair in the spinal cord but nerve regeneration in the central nervous system poses a greater challenge because its axons do not regenerate appreciably in their native environment.The creation of artificial conduits is also known as entubulation because the nerve ends and intervening gap are enclosed within a tube composed of biological or synthetic materials. Whether the conduit is in the form of a biologic tube, synthetic tube or tissue-engineered conduit, it should facilitate neurotropic and neurotrophic communication between the proximal and distal ends of the nerve gap, block external inhibitory factors, and provide a physical guidance for axonal regrowth. The most basic objective of a nerve guidance conduit is to combine physical, chemical, and biological cues under conditions that will foster tissue formation.Materials that have been used to make biologic tubes include blood vessels and skeletal muscles, while nonabsorbable and bioabsorbable synthetic tubes have been made from silicone and polyglycolide respectively. Tissue-engineered nerve guidance conduits are a combination of many elements: scaffold structure, scaffold material, cellular therapies, neurotrophic factors and biomimetic materials. The choice of which physical, chemical and biological cues to use is based on the properties of the nerve environment, which is critical in creating the most desirable environment for axon regeneration. The factors that control material selection include biocompatibility, biodegradability, mechanical integrity, controllability during nerve growth, implantation and sterilization.
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