4.2.1 Muscle Rules Laboratory Report
Learning Goals
•I can describe the structure and function of the three types of muscle tissue. ( 32.01)
Background:
There are 206 bones in the human body, but over 600skeletal
musclesallowing our bodies to move in different directions. More than 60 of
these muscles are found in your face alone. You use 40 of these muscles every
time you frown, but only 20 muscles when you smile. The human body is even
built to make it easier to be happy than to be sad.
Skeletal muscles are attached to bones with tough cords or sheets
calledtendonsand these bones meet other bones at junctions calledjoints.
Thecontractionor shortening of muscles pulls on bone and moves the body.
In this activity, you will observe and compare the structure and function of the
three types of muscle tissue. You will explore the structure of skeletal muscle
both by looking at slides and by creating a model of a muscle unit.
Equipment: Computer with internet access; prepared slides of muscle tissue;
construction paper; clay
Research Question: Describe muscles and their functions in the human body? What would
happen if muscles did not exist?
Hypothesis: _If we didn’t have muscles then we wouldn’t be able to move the way that
that we need to because muscles are strong, fibrous tissues that connect our bones and
allow us to conduct movement._
*Note: Be sure to write your hypothesis in an if, then, because statement. See example
below
Ex: If the person of interest is lying, then the heart and respiratory rates will increase
because when a person is lying the human body undergoes physiological changes which
include activating the sympathetic system of the nervous system specifically the “Fight or
Flight” response system.
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