Transcript cardiac muscle

Muscle Types,
Characteristics,
and Functions
PROPERTY OF PIMA COUNTY JTED, 2010
All images used in this PowerPoint are from Microsoft Gallery
1
Think back
to when you took
Science or Biology Class.
Write down
what you know about muscles…
PROPERTY OF PIMA COUNTY JTED, 2010
Skeletal- attached to bones and moves skeleton.
It is a striated muscle
(banded). Voluntary muscle.
Smooth- muscle tissue is located in the walls of the hollow internal structures
such as blood vessels, the stomach, intestines and urinary bladder.
Not striated. Involuntary muscle.
Cardiac- muscle of the heart.
Involuntary muscle.
Contractility- the ability to contract or make shorter.
Excitability- responsiveness to stimulation and regulation by nervous
impulses and hormones.
Extensibility- the ability to be stretched from the normal resting length.
Elasticity- the ability to stretch and return to the original shape.
PROPERTY OF PIMA COUNTY JTED, 2010
CARDIAC MUSCLE (HEART)
created by JTED Graphics team
PROPERTY OF PIMA COUNTY JTED, 2010
SKELETAL MUSCLE
created by graphic design team member
PROPERTY OF PIMA COUNTY JTED, 2010
SMOOTH MUSCLE
created by graphic design team member
PROPERTY OF PIMA COUNTY JTED, 2010
 Involuntary muscle
 Not under conscious control
 Provides movement of the bones and joints
 A voluntary muscle
 Found in many hollow organs
 These muscles are found in blood vessels,
digestive organs, the urinary system and in
parts of the respiratory system
 The function of cardiac muscle is to pump blood
in the circulatory system.
 The function of skeletal muscle is to contract for
voluntary movements
http://www.masterfile.com/stock-photography/image/700-00045856/Man-Jumping-over-Hurdles
 The function of smooth muscle is the propulsion
of substances along internal organs.