A&P Key Terms 04 Tissue Level of Organization

Author:

Access: Public

Start FlashCards Download PDF Key Terms Series Card Set Learn

Get Jobilize Job Search Mobile App in your pocket Now!

Get it on Google Play Download on the App Store Now

Micrograph of cervical tissue

This micrograph shows tissue surrounding several empty spaces. The epithelial tissue occurs at the border between the rest of the tissue and the empty spaces. The normal epithelium is composed of rectangular-shaped cells neatly organized side by side. Dark purple nuclei are clear at the bottom of the epithelial cells, where they attach to the rest of the tissue. The abnormal epithelium appears as a tangled area of purple nuclei, much thicker than the normal epithelium although no distinct cells are discernible.
This figure is a view of the regular architecture of normal tissue contrasted with the irregular arrangement of cancerous cells. (credit: “Haymanj”/Wikimedia Commons)

Chapter objectives

After studying this chapter, you will be able to:

  • Identify the main tissue types and discuss their roles in the human body
  • Identify the four types of tissue membranes and the characteristics of each that make them functional
  • Explain the functions of various epithelial tissues and how their forms enable their functions
  • Explain the functions of various connective tissues and how their forms enable their functions
  • Describe the characteristics of muscle tissue and how these enable function
  • Discuss the characteristics of nervous tissue and how these enable information processing and control of muscular and glandular activities

The body contains at least 200 distinct cell types. These cells contain essentially the same internal structures yet they vary enormously in shape and function. The different types of cells are not randomly distributed throughout the body; rather they occur in organized layers, a level of organization referred to as tissue. The micrograph that opens this chapter shows the high degree of organization among different types of cells in the tissue of the cervix. You can also see how that organization breaks down when cancer takes over the regular mitotic functioning of a cell.

The variety in shape reflects the many different roles that cells fulfill in your body. The human body starts as a single cell at fertilization. As this fertilized egg divides, it gives rise to trillions of cells, each built from the same blueprint, but organizing into tissues and becoming irreversibly committed to a developmental pathway.

Key Terms PDF eBook: 
A&P Key Terms 04 Tissue Level of Organization
Download Tissue Organization Key Terms PDF eBook
90 Pages
2015
English US
Educational Materials



Start FlashCards Download PDF Key Terms Series Card Set Learn
Disclaimer:  This course does NOT provide the education or experience needed for the diagnosing or treating any medical condition, all site contents are provided as general information only and should not be taken as a medical advice.
Source:  Human Body OpenStax College. Anatomy & Physiology, Download for free at http://cnx.org/contents/14fb4ad7-39a1-4eee-ab6e-3ef2482e3e22@7.25
Jesenia Wofford
Start Quiz
Copy and paste the following HTML code into your website or blog.
<iframe src="https://www.jobilize.com/embed/anatomy-physiology-key-terms-tissue-level-of-organization" width="600" height="600" frameborder="0" marginwidth="0" marginheight="0" scrolling="yes" style="border:1px solid #CCC; border-width:1px 1px 0; margin-bottom:5px" allowfullscreen webkitallowfullscreen mozallowfullscreen> </iframe>