I`m Bigger Than You
... I’m Bigger Than You
An organ, such as the heart, is made up of groups of tissues that work together to perform a specific
function. The heart is a pump that keeps blood flowing throughout the body. The heart is primarily
made up of muscle tissue, but also contains connective and nerve tissue. Howeve ...
Epithelial Connective Muscle Nervous Tissues
... Metabolism of neurotransmitters
Contribute in brain development
Blood brain barrier
Link between neurons and blood
Form a supporting network
Produce myelin sheath around
Organization of Living Things
... muscle tissue contracts, making
the heart pump. The nerve tissue
brings messages that tell the heart
how fast to beat. The blood tissue
is carried from the heart to other
organs of the body.
PPT - UCLA Health
... Afferent innervation of these hair cells comes from 30,000
auditory nerve fibers (cochlear portion of CN 8)
... Amorphous but firm matrix; collagen fibers form an
imperceptible network; chondoblasts produce the matrix
and when mature chondrocytes lie in lacunae
... junctions to allow cells to signal each other
1. lack of striations…hence smooth
2. walls of digestive tract, urinary bladder,
arteries and other internal organs
3. spindle shape
4. slow endurance cells – contract slow but can
sustain for long time unlike skeletal
5. invol ...
View Press Release
... Corporation (OTCBB: ISCO) (www.internationalstemcell.com). The worldwide
exclusive license covers the marketing, sale and distribution of adult Arctic ground
squirrel (AGS) neural stem cells for research use and provides Neuronascent with license
fees and royalty income.
The Arctic ground squirrel i ...
Accepted for Stem Cell Treatment Letter from Global Stem Cells Int
... disease progression and any further regression in vision. Two Retrobulbar Injections in
your right eye is initially recommended.
These improvements are due to the ability of mesenchymal stem cells to differentiate into
neural cells, reduce inflammation and scar tissue, release growth factors, promot ...
... a trillion nerve cells (neurons) that communicate with each
other and coordinate their activities. It controls and
integrates the functional activity of organs and systems.
Nervous tissue is composed of two principle types of cells
- nerve cells or neurons and neuroglial cells or glia Neurons
are th ...
Chapter 4 - Valhalla High School
... 1. While cells are basic functional and
structural unit of life, they function in
groups as tissues to carry out specialized
2. Properties of tissues are influenced by
factors such as extracellular material and
connections between cells
3. Tissues may be hard, semisolid, or liquid
4. Vary ...
Connective Tissue - White Plains Public Schools
... together. They become continuous with the basement membrane and the various types of
adhesion proteins such as desmosomes.
Are a complex group of proteins modified with sugar groups that control how viscous the
ground substance is.
Proteoglycans are heavily glycosylated proteins. They ...
Chapter 5 - Tissues PPT
... Exocrine Glands – Deliver secretions by way of a
duct or tube to the inside or outside of the body
... Small intestinal mucosa, stripped of its mucosal and serosal layers leaves an
acellular collagen matrix which can be fashioned into a roll to bridge a nerve
gap. Results were poor but when seeded with SCells, it promotes significan
regen approaching autograft success.
Collagen can be shaped into a c ...
... Cells, or muscle fibers, are
long and threadlike
Muscle fibers contract
when stimulated by nerve
action and then relax
Nervous system PDF document
... neuroepithelial cells.
These cells extend over the entire thickness of the
wall and form a thick pseudostratified epithelium .
Junctional complexes at the lumen connect them.
During the neural groove stage and immediately after
closure of the tube,they divide rapidly, producing
more and more neuroep ...
Science Review pack - Cells 2.1.1 Cell Theory: 1. All living things
... properties arise from the interaction of component parts: the whole is greater
than the sum of its parts.
2.1.8 Explain that cells in multicellular organisms differentiate to carry out
specialized functions by expressing some of their genes but not others.
Multicellular organisms usually start out a ...
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.