Types of Tissues

Topics: Muscle, Connective tissue, Heart Pages: 2 (402 words) Published: January 18, 2011
Types of Tissues

Stacy Sisler

HS 120, Section 03

Unit 2 Seminar

Kaplan University

Jan. 17, 2011

Types of Tissue

A tissue is a group of cells that have a similar shape and function. Different type of tissues can be found in different organs. In humans, there re four basic types of tissue: epithelial tissue, connective tissue, muscular tissue, and nervous tissue. There may be various sub-tissues within each of the primary tissues.

Epithelial tissue covers the body surface and forms the lining for most internal cavities. The major function of epithelial tissue includes protection, secretion, absorption, and filtration. The skin is an organ made up of epithelial tissue which protects the body from dirt, dust, bacteria and other microbes that may be harmful. Cells of the epithelial tissue have different shapes. Cells can be thin, flat to cubic to elongated.

Connective tissue is the most abundant and the most widely distributed of the tissues. Connective tissue performs a variety of functions that includes support and protection. The following tissues are found in the human body, ordinary loose connective tissue, fat tissue, dense fibrous tissue, cartilage, bone, blood, and lymph. These are all part of the connective tissue.

There are three types of muscle tissue: skeletal, smooth, and cardiac. Skeletal muscle is a voluntary type of muscle tissue that is used in contraction of skeletal parts. Smooth muscle is found in the walls of internal organs and blood vessels. Smooth muscle is also involuntary. The cardiac muscle is found only in the heart and is involuntary.

Nerve tissue is composed of specialized cells which not only receive stimuli but also conduct impulses to and from all parts of the body. Nerve cells or neurons are long and string-like.

The tissues that may be involved in the injury of the 17 year old boy playing high school soccer, consists of the special connective tissue of the cartilage and...
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