- published: 12 Jan 2015
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In biology, tissue is a cellular organizational level intermediate between cells and a complete organ. A tissue is an ensemble of similar cells from the same origin that together carry out a specific function. Organs are then formed by the functional grouping together of multiple tissues.
The study of tissue is known as histology or, in connection with disease, histopathology. The classical tools for studying tissues are the paraffin block in which tissue is embedded and then sectioned, the histological stain, and the optical microscope. In the last couple of decades, developments in electron microscopy, immunofluorescence, and the use of frozen tissue sections have enhanced the detail that can be observed in tissues. With these tools, the classical appearances of tissues can be examined in health and disease, enabling considerable refinement of medical diagnosis and prognosis.
Grouped in to four basic types: connective, muscle, nervous, and epithelial. Multiple tissue types compose organs and body structures. While all animals can generally be considered to contain the four tissue types, the manifestation of these tissues can differ depending on the type of organism. For example, the origin of the cells comprising a particular tissue type may differ developmentally for different classifications of animals.
Crash Course (also known as Driving Academy) is a 1988 made for television teen film directed by Oz Scott.
Crash Course centers on a group of high schoolers in a driver’s education class; many for the second or third time. The recently divorced teacher, super-passive Larry Pearl, is on thin ice with the football fanatic principal, Principal Paulson, who is being pressured by the district superintendent to raise driver’s education completion rates or lose his coveted football program. With this in mind, Principal Paulson and his assistant, with a secret desire for his job, Abner Frasier, hire an outside driver’s education instructor with a very tough reputation, Edna Savage, aka E.W. Savage, who quickly takes control of the class.
The plot focuses mostly on the students and their interactions with their teachers and each other. In the beginning, Rico is the loner with just a few friends, Chadley is the bookish nerd with few friends who longs to be cool and also longs to be a part of Vanessa’s life who is the young, friendly and attractive girl who had to fake her mother’s signature on her driver’s education permission slip. Kichi is the hip-hop Asian kid who often raps what he has to say and constantly flirts with Maria, the rich foreign girl who thinks that the right-of-way on the roadways always goes to (insert awesomely fake foreign Latino accent) “my father’s limo”. Finally you have stereotypical football meathead J.J., who needs to pass his English exam to keep his eligibility and constantly asks out and gets rejected by Alice, the tomboy whose father owns “Santini & Son” Concrete Company. Alice is portrayed as being the “son” her father wanted.
Tissue may refer to:
•••SUBBABLE MESSAGE••• TO: Jordan Schoonover FROM: Mom, Dad & Madison Happy Birthday Jordan! We love you sweetheart!! *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content. *** In this episode of Crash Course Anatomy & Physiology, Hank gives you a brief history of histology and introduces you to the different types and functions of your body's tissues. -- Table of Contents: Nervous, Muscle, Epithelial & Connective Tissues 1:23 History of Histology 2:07 Nervous Tissue Forms the Nervous System 5:17 Muscle Tissue Facilitates All Your Movements 7:00 Identifying Samples 9:03 -- W...
The purpose of this presentation is to explain the four common tissue types which make up the structures of the body of vertebrates and most other animals.
A flower-shaped printed droplet network spontaneously folded to form a hollow sphere. Researchers at the University of Oxford made the find.
Plant tissues are categorized broadly into three tissue systems: the epidermis, the ground tissue, and the vascular tissue. Epidermis - Cells forming the outer surface of the leaves and of the young plant body. Vascular tissue - The primary components of vascular tissue are the xylem and phloem. A mature vascular plant (any plant other than mosses and liverworts), contains several types of differentiated cells. These are grouped together in tissues. Some tissues contain only one type of cell. Some consist of several. Meristematic The main function of meristematic tissue is mitosis. The cells are small, thin-walled, with no central vacuole and no specialized features. Meristematic tissue is located in the apical meristems at the growing points of roots and stems. the secondary meristem...
http://demonstrations.wolfram.com/1DHeatConductionThroughBiologicalTissue The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily. This Demonstration is about time-varying heat conduction in biological tissue. The main objective of a conduction analysis is to determine temperature distribution in a tissue medium, that is, to know the temperature in the tissue as a function of space... Contributed by: Muhamad Hamdi and Yusof Munajat Audio created with WolframTones: http://tones.wolfram.com
•••SUBBABLE MESSAGE••• TO : Phoebe and James McMullan FROM : Dad Continue being awesome Phoebe & James from John & Hank! *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content. *** Today on Crash Course Anatomy & Physiology, Hank breaks down the parts and functions of one of your body's unsung heroes: your epithelial tissue. -- Table of Contents: Epithelial Tissue Creates Inner & Outer Boundaries 2:19.3 Layering: Simple or Stratefied 5:26 Shape: Squamous, Cuboidal, or Columnar 3:34.5 Epithelial Cells Are Polar 7:17.4 Apical & Basal Sides 7:22 Selectively Permeable 7:43 Glandula...
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Mercury from natural and anthropogenic sources such as soil, rocks and coal fired plants ultimately gets washed into the water bodies around us. As mercury from the water bodies gets absorbed by the fish, animal and other biological tissues through ecological processes, it eventually enters into the food chain. While inorganic mercury is not proven to have adverse effects on general health, overtime, it gets converted to methyl mercury which is extremely toxic making mercury analysis in fish, animal and biological tissues a very important research area today. Conventionally, laboratories have been using cold vapor methods for mercury analysis. These methods, although tried and tested, are challenging in many respects, primarily due to the fact that the users are required to digest samp...
From the paper "Nanoparticle solutions as adhesives for gels and biological tissues," authored by Séverine Rose, Alexandre Prevoteau, Paul Elzière, Dominique Hourdet, Alba Marcellan & Ludwik Leibler. Published in Nature 505, 382–385 (16 January 2014) doi:10.1038/nature12806. http://www.nature.com/nature/journal/v505/n7483/full/nature12806.html Abstract: Adhesives are made of polymers1 because, unlike other materials, polymers ensure good contact between surfaces by covering asperities, and retard the fracture of adhesive joints by dissipating energy under stress2, 3. But using polymers to ‘glue’ together polymer gels is difficult, requiring chemical reactions, heating, pH changes, ultraviolet irradiation or an electric field4, 5, 6, 7. Here we show that strong, rapid adhesion betwe...
Tissue Fluid for AS Biology........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
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This lecture describes the different types of tissues making up humans and other vertebrates. Enjoy!
Biology (Grade 9): Plant Tissues; Video by Edupedia World (www.edupediaworld.com) All right reserved.
Presented By: Kawser Ali Howlader Cambrian College
6th Biennial Meeting on Heart Valve Biology & Tissue Engineering 10th - 12th September 2014 Royal Society, London
IAS / HCS : general Studies : Biology 11/50 : Plant Tissue . Biology is very important for UPSC , state services examinations. Join IAS / HCS O" Online Coaching Batch" for details visit http://baljitdhaka.com/ facebook: https://www.facebook.com/frontierIAScoaching/