TEKS 7.9 A
For Teacher’s Eyes Only
Teacher Background: There are twelve major organ systems in the human body
(i.e., circulatory, skeletal, respiratory, excretory, integumentary, nervous,
digestive, endocrine, reproductive, immune, lymphatic, and muscular systems). In
this TEKS, we will introduce students to the common structures of each system
and their basic functions.
A brief description of these systems follows:
– Without the muscular system, our skeletal system would not
have the ability to move.
The muscular system has three primary functions in the
body, produce motion for movement, providing stabilization and generating body
Muscles are categorized into three different types, cardiac, smooth, and
Cardiac meaning pertaining to the heart is the muscle actually found in
The digestive system is the primary location of smooth muscle, which
uses involuntary motion like peristalsis.
The majority of the muscle found in our
body is skeletal muscle.
Bones are found attached to these muscles and are used
to manipulate and move the body.
Student Prior Knowledge
Students should be familiar with the components associated with body systems
TEKS 6.10 (C) identify how structure complements function at different levels of
organization including organs, organ systems, organisms, and populations and the
functions of these systems.
TAKS Objective 2