View Stock Photo of Human Skin Crosssection Showing The Epidermis Dermis Perichondrium Elastic Cartilage A Myelinated Nerve Fiber And A Muscular Artery. Find premium, high-resolution photos at Getty Images.
Discusdegeneration is a common back problem. Discus are round elastic cartilage discs that lie between the vertebraes. Read about discus deneration and how to treat and prevent the condition
X-ray computed tomography (CT) is an invaluable three-dimensional non-destructive imaging method with numerous applications in life and material science. The technique yields excellent results where highly absorbing structures are embedded in a matrix of relatively weakly absorbing material (like bones and tissue in the human body). However, for the differentiation of weakly absorbing soft matter, e.g., pathologies in the soft-tissue structure, the contrast achieved by the currently existing, absorption-based X-ray methods is limited, unless contrast agents are used.. Phase-sensitive X-ray imaging can overcome these limitations and yield good contrast for soft-tissue structures. Phase-contrast imaging relies on refraction, or changes in the angular trajectory of X-rays. Just as light rays bend when they enter water from air, X-rays deflect as they travel through objects of varying densities. We used grating interferometry at ID19 to measure this effect and thus obtain detailed radiographic ...
Qirtik an kirtik (bi înglîzî: Cartilage) cureyekî ji tevinekê girêdanê ya ku li gelek beşan di laşî mirov de hene wek guh, poz, navbara movikan, qilqancik û bronşan. Ew req e lê ne wek hestî û elastîk e. Tevinekê qirtikê ji şaneyên qirtikê pêk tê, yên ku di miqdarekî mezin ji matrîksa ekstrasellular (Extracellular matrix) de ne. Di matrîksê de davên kollagen pirranî cor 2 (collagen Type II) û proteoglîkan û hiyalîn (Hyaline). Sê cor ji tevinekê qirtikê hene, qirtika hiyalîn (hyaline cartilage), qirtika elastîk (Elastic cartilage) û qirtika davê (fibrocartilage). Boriyên xwînê têde tune ne. ...
Looking for online definition of elastic cartilage in the Medical Dictionary? elastic cartilage explanation free. What is elastic cartilage? Meaning of elastic cartilage medical term. What does elastic cartilage mean?
Despite the enthusiasm for bioengineering of functional renal tissues for transplantation, many obstacles remain before the potential of this technology can be realized in a clinical setting. Viable tissue engineering strategies for the kidney require identification of the necessary cell populations, efficient scaffolds, and the 3D culture conditions to develop and support the unique architecture and physiological function of this vital organ. Our studies have previously demonstrated that decellularized sections of rhesus monkey kidneys of all age groups provide a natural extracellular matrix (ECM) with sufficient structural properties with spatial and organizational influences on human embryonic stem cell (hESC) migration and differentiation. To further explore the use of decellularized natural kidney scaffolds for renal tissue engineering, pluripotent hESC were seeded in whole- or on sections of kidney ECM and cell migration and phenotype compared with the established differentiation assays for hESC.
The enormous variation of the orbit in lepidosaurs is better conceptualized in terms of composition and configuration. Broadly, the orbit varies from having totally closed rim to being open posteriorly. Two processes are responsible for changes in the components of the circumorbital series, element loss and fusion. The resulting contacts among elements are the main factors determining orbital configuration. Here, we present a revision of the gekkotan circumorbital bones in the general context of the Lepidosauria. From observations of a sample of 105 species of gekkotans prepared using different techniques, we describe the main changes in the orbit and corroborate the presence or absence of some of the ambiguous elements such as the lacrimal and the jugal. The supraorbital bones of squamates are reviewed and some problems of homology are evaluated using recent phylogenenetic hypothesis. Anat Rec, 2010. © 2009 Wiley-Liss, Inc. ...
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In order to prevent food from entering the air passages of the human larynx and trachea, a thin, leaf-shaped flap of tissue, the epiglottis, closes the opening into the larynx during swallowing.
The planning of radiotherapy treatment has been revolutionized by the ability to delineate tumors and adjacent normal structures in three dimensions using specialized CT and/or MRI scanners and planning software.[3] Virtual simulation, the most basic form of planning, allows more accurate placement of radiation beams than is possible using conventional X-rays, where soft-tissue structures are often difficult to assess and normal tissues difficult to protect. An enhancement of virtual simulation is 3-Dimensional Conformal Radiotherapy (3DCRT), in which the profile of each radiation beam is shaped to fit the profile of the target from a beams eye view (BEV) using a multileaf collimator (MLC) and a variable number of beams. When the treatment volume conforms to the shape of the tumour, the relative toxicity of radiation to the surrounding normal tissues is reduced, allowing a higher dose of radiation to be delivered to the tumor than conventional techniques would allow. Intensity-Modulated ...
End-stage renal disease (ESRD) is characterized by the progressive deterioration of renal function that may compromise different tissues and organs. The major treatment indicated for patients with ESRD is kidney transplantation. However, the shortage of available organs, as well as the high rate of organ rejection, supports the need for new therapies. Thus, the implementation of tissue bioengineering to organ regeneration has emerged as an alternative to traditional organ transplantation. Decellularization of organs with chemical, physical and/or biological agents generates natural scaffolds which can serve as basis for tissue reconstruction. The recellularization of these scaffolds with different cell sources, such as stem cells or adult differentiated cells, can provide an organ with functionality and no immune response after in vivo transplantation on the host. Several studies have focused on improving these techniques, but until now, there is no optimal decellularization method for the kidney
Disclosed are neocartilage compositions characterized by having multiple layers of cells, said cells being surrounded by a substantially continuous insoluble glycosaminoglycan and collagen-enriched hyaline extracellular matrix, and which neocartilage phospholipids are advantageously enriched in anti-inflammatory n-9 fatty acids, particularly 20:3 n-9 eicosatrienoic or Mead acid. Also disclosed are methods of growing neocartilage in substantially serum-free growth media and methods of producing a conditioned growth media containing compounds effective to enhance neocartilage formation. The neocartilage compositions are useful as implants and as replacement tissue for damaged or defective cartilage and as a model system for studying articular cartilage disease and response to natural and synthetic compounds.
Present review article emphasizes role of regeneration mechanism in various tissues and its use in organ transplantation for wound healing and repairing. This review also addresses tissue engineering methods and use of new biological scaffold materials and promising candidates such as immunomodulators, adhesions, integrins in tissue repairing and induction of regeneration in injured tissues. This article also explains uses of various stem cell types in transplantation technologies and its applications in regenerative medicine and therapeutics. In addition, role of various molecules of immune cell system, gene cascades and transcription specific proteins (TSPs) and growth factors in formation of microenvironment for differentiation are also explained. Mechanisms of regeneration in various animal tissues such as tendon and ligament, cartilage need progenitor cells show chondrogenic and proliferative potential and form elastic cartilage that needs long-term tissue maintenance. Similarly, ...
Calcitonin opposes the actions of PTH, but plays a lesser role overall. Bone is highly vascular and mineralized with hydroxyapatite. In contrast, the three types of cartilage are avascular and contain chondrocytes that synthesize fibers and ground substance. Hyaline cartilage covers articular surfaces and forms the cartilage model in long bone development. Elastic cartilage is found in the pinna of the ear and in the epiglotlis, while fibrocartilage is an intermediate form found in the intervertebral disc, pubic symphysis, and connecting tendon and bone. Hyaline cartilage contains matrix comprised of type II collagen electrostatically bound to proteoglycans. Elastic cartilage contains type II collagen and elastic fibers, and fibrocartilage, like bone, contains type I collagen ...
A flexion test is a preliminary veterinary procedure performed on a horse, generally during a prepurchase or a lameness exam. The purpose is to accentuate any pain that may be associated with a joint or soft-tissue structure, allowing the practitioner to localize a lameness to a specific area, or to alert a practitioner to the presence of sub-clinical disease that may be present during a pre-purchase exam. The animals leg is held in a flexed position for 30 seconds to up to 3 minutes (although most veterinarians do not go longer than a minute), and then the horse is immediately trotted off and its gait is analyzed for abnormalities and uneveness. Flexions stretch the joint capsule, increase intra-articular and subchondral bone pressure, and compress surrounding soft tissue structures, which accentuates any pain associated with these structures. An increase in lameness following a flexion test suggests that those joints or surrounding soft tissue structures may be a source of pain for the horse. ...
The corniculate cartilages are two small conical nodules that articulate with the arytenoids cartilage. They consist of elastic cartilage. They also aid in opening and closing of the glottis to aid in sound production ...
Collagen Type II is a major constituent of hyaline and elastic cartilage protein. Collagen Type II Monoclonal Antibody (Clone 20G-12E) specifically recognizes rat and mouse type-II collagen and is suitable for immunohistochemistry of paraffin-embedded cartilage protein tissue sections as well as immunoblotting under non-reducing conditions. The Rat Collagen Type 2 Monoclonal Antibody specifically recognizes rat type-II collagen. It is validated for immunoblotting and immunocytochemistry applications.. ...
The human ear canal is divided into two parts. The elastic cartilage part forms the outer third of the canal; its anterior and lower wall are cartilaginous, whereas its superior and back wall are fibrous. The cartilage is the continuation of the cartilage framework of pinna. The cartilaginous portion of the ear canal contains small hairs and specialized sweat glands, called apocrine glands, which produce cerumen (ear wax). The bony part forms the inner two thirds. The bony part is much shorter in children and is only a ring (annulus tympanicus) in the newborn. The layer of epithelium encompassing the bony portion of the ear canal is much thinner and therefore, more sensitive in comparison to the cartilaginous portion. Size and shape of the canal vary among individuals. The canal is approximately 2.5 centimetres (1 in) long and 0.7 centimetres (0.28 in) in diameter.[2] It has a sigmoid form and runs from behind and above downward and forward. On the cross-section, it is of oval shape. These are ...
The thyroid cartilage is a shield-shaped hyaline cartilage that is incomplete posteriorly. It has two large, flat plates, or laminae, that converge at the anterior midline where they form the so-called "Adams apple." Projecting from the posterior border of each lamina are superior and inferior projections, the superior and inferior horns of the thyroid cartilage. Attached to its inner surface at the midline is the elastic cartilage structure, the epiglottis. They provide attachment for numerous muscles of the larynx and ventral strap muscles of the neck. Like the other laryngeal cartilages, it grows much more rapidly in the male after puberty ...
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Search and download thousands of Swedish university dissertations (essays). Full text. Free. Dissertation: Production of neocartilage tissues using primary chondrocytes .
The auricle is also known as the pinna, and it is most commonly referred to as the ear. It is the most obviously visible part of the auditory system. An auricle consists of skin over contoured cartilage, and it is held in place by muscles and ligaments.