Chapter 4 Learning outcomes
4-1 Identify the four major types of tissues in the body and describe their roles.
The four major types of tissues are epithelial, connective, muscle, and neural tissue. The functions of each are that the epithelial tissue covers exposed surfaces, lines internal passageways, and chambers, and forms glands. The connective tissue fills internal spaces, provides structural support for other tissues, transports materials within the body and stores energy. The muscle tissue includes the skeletal muscles of the body, the muscle of the heart, and the muscular walls of hollo organs, The neural tissue carries information from one part of the body to another in the form of electrical impulses.
4-2 Discuss the types and functions of epithelial tissue.
The types of epithelial tissue include epithelia and glands. Epithelial provides four important functions that include physical protection, controls permeability, provides sensation, and produces specialized secretions.
4-3 Describe the relationship between structural and function for each type of epithelium.
There are columnar, cuboidal, and squamous, which are flattened and scale-like cells. Basically columnar are much higher than they are wide, cuboidal look like squares, and squamous are flat like turtles and therefore not very tall at all. The relationship between each other is that squamous cells provide physical protection and performs absorption and secretion. The cuboidal structure relationship is that it provides limited protection and occurs where secretions or absorption takes place. The columnar structural relationship with functions is that they provide protection against chemical stresses in the stomach and large intestine.
4-4 Compare the structures and functions of the various types of connective tissue. Connective tissue is composed primarily of two elements: cells