Epithelia cover all body surfaces therefore more

This preview shows page 2 - 3 out of 7 pages.

-epithelia cover all body surfaces therefore more subject to injury than most other issues -carcinogens: agents that induce DNA changes (injury), can lead to cancer -carcinoma: term for epithelial cancer, common examples include lung adenocarcinoma
Image of page 2

Subscribe to view the full document.

Connective tissue Connective tissue function -connect and bind: anchor tissue layers in organs and link organs together -support: bone and cartilage support weight of the body -protection: bone tissue protects certain internal organs, cartilage and fat provide shock absorption, components of immune system are found throughout connective tissue -transport: blood Types: proper, cartilage, bone, and blood Connective tissue proper -also known as general connective tissue -widely distributed in the body -connect tissue and organs to one another -cells include resident (permanently inhabit tissue in which they are found) and migrant (migrate into different areas of body depending on situation) -cells in connective tissue proper include: fibroblasts, adipocytes, phagocytes -fibroblast: most common resident cell, make protein fibers and ground substance (ECM), continually produce collagen proteins -adipocytes: found in many dif. Connective tissues, cytoplasm of each cell is filled with a single large lipid inclusion -phagocyte: immune system cells can ingest foreign substances, microorganisms, and dead or damaged cells by phagocytosis, include macrophages -areolar tissue: loose connective tissue; mostly ground substance, with all 3 types of protein fibers, fibroblasts, and occasionally adipocytes, suspended in ground substance, found beneath epithelium of skin, in membranes lining cavities, and within walls of hollow organs -white adipose tissue: for energy store, insulate, shock absorb, predominant fat tissue, found deep to skin as subcutaneous fat and in abdomen -brown adipose tissue: less common, has a brown appearance, due to numerous mitochondria and a vast blood supply -reticular tissue: form fine networks that support small structures, like blood vessels and lymphatic vessels, also found in spleen and lymph nodes, forms part of basement membrane that supports all epithelial cells -dense regular connective: predominant organized into parallel collagen bundles, resistant to tension on one plane, found in tendons and ligaments
Image of page 3
You've reached the end of this preview.
  • Fall '16
  • Brewitt
  • respiratory tract

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern