Monday, September 7, 2015

Tissue Lab

      In the lab we did today, we walked around to different microscopes around the room and saw around 14 different tissues! Next to the microscopes were posters of the tissue types, which are muscle, nervous, connective, and epithelial. 
      For the muscle tissues, I saw different things like human cardiac muscle and the human skeletal muscle. For cardiac, I knew that it had to do with the heart and was located on the walls of the heart. I also learned from the lecture that muscle tissues look like they have branches and that they push blood in the blood vessels and gets them flowing properly. Looking in the microscopes, I saw different things like multiple nuclei, discs, and fibers. 
       Next to muscle tissues, I saw some nervous tissue such as a human nerve. We learned that the nervous tissue transmits electrical signals from sensory receptors to effectors. We saw a variety of things like a human nerve. 
       Then I saw connective tissues. There were so many like the white fibrous tissue and elastic cartialage of a human ear.  The human ear elastic cartialage was similar to the hyaline cartilage. We knew that connective tissues provided structural and metabolic support for other tissues and organs
      Lastly, I saw epithelial tissues. Epithelial tissues could be simple, stratified, or pseudostratified, and squamous, cuboidal, or columnar. We saw different things like human skin and human lung. The human skin was stratified squamous and dense irregular whereas the human lung was simple squamous and single layer.
Below are some pictures from the lab!




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