Study Guide 3

Unit 3 Lecture Study Guide

1. List the 4 primary tissue types and give the general characteristics and functions of each one.

The four primary tissue parts are the epithelium, connective, nervous, and muscle tissue. Epithelium is used for absorbing, filtering, and secreting. The connective tissue stores nutrients protects and supports the organs and joints, and runs capsules in deep layers of skin to provide strength. The nervous tissue conducts impulses to and from the body. The muscular tissue is responsible for movement, moving blood, food, and wastes through organs, and for mechanical digestion.

2. How are epithelial tissues classified?

Epithelial tissues are classified by their shape and cell arrangement.

3. How does the type of epithelial tissue relate to its function? Give at least 1 example of where you would find each type of epithelial tissue.

The shape and arrangement of the epithelial tissues determine how the certain part functions and processes. Certain cell arrangements are controlled by where they are located within the body. The squamous cells would be found in an organ with a easily malleable wall for filtration and absorption such as the glands or stomach. Cuboidal cells would be found in a rougher place for strength on an organ to absorb harder material such as in the intestines. The columnar cells are close together in a compacted are used to protect and keep out unwanted things in the skin or stomach area.

4. Differentiate between exocrine and endocrine glands. Give an example of each.

Exocrine glands have ducts and are secreted onto a surface, while endocrine glands are secreted into the blood stream. An example of an exocrine gland would be a parotid gland and an example of a endocrine gland would be a pineal gland. http://www.histology.leeds.ac.uk/glandular/exocr_endocr_properties.php

5. What is the difference between apocrine, merocrine and holocrine glands? Which is the...