Transcript Muscles - The Science Queen

Functions of the
Muscular System
1. Stabilize joints with
their TENDONS
2. Produce movement
(including standing
upright)
3. Produce heat to
maintain body
temperature
3 Types of Muscle Tissue
0 Skeletal
0 Cardiac
0 Smooth
Picture from
http://www.calhoun.edu/distance/Internet/Natural/Healthlinks/ems/paramedic
%20student%20page/Vol.%201%20Ch.%208a_files/slide0018.htm
Skeletal Muscle
0 Attaches to bone, skin, or
fascia (connective tissue)
0 Striated muscle
0 Muscle fibers are bands of
dark & light tissue.
0 Function in pairs to bring
about the co-ordinated
movements of the limbs,
trunk, jaws, eyeballs, etc.
0 Voluntary control of
contraction & relaxation
Picture from
http://www.thechildrens
hospital.org/wellness/inf
o/kids/20169.aspx
Picture from
http://www.gwc.maricopa.edu/class/bio201/Histology/HistoR
ev20a.htm
http://www.sirinet.net/~jgjohnso/muscle.html
Pectorals
Brachioradialis
Rectus
Abdominus
Sartorius
Deltoids
Triceps
Biceps
External Obliques
Quadriceps
Gastrocnemius
Picture from
http://kidshealth.org/PageManager.jsp?lic=1&article_set=54399&cat_id=20607
Cardiac Muscle
0 Found only in the heart.
0 It causes the rhythmical
beating of the heart,
circulating the blood and
its contents throughout
the body as a
consequence.
0 Involuntary muscle
0 Striated Muscle
Picture from
http://lifesciencedigest.com/2009/08/11/cashfor-cardiovascular-who-might-be-next/
Picture from
http://www.kumc.edu/instructio
n/medicine/anatomy/histoweb/
muscular/muscle14.htm
Smooth Muscle
0 Can be found in your digestive system,
0
0
0
0
circulatory system, and even the
muscles in your eyes that help them to
focus.
Smooth muscle tissue is located in the
walls of hollow internal structures such
as blood vessels, the stomach,
intestines, and urinary bladder
Smooth muscle controls slow,
involuntary movements such as the
contraction of the smooth muscle tissue
in the walls of the stomach and
intestines.
The muscle of the arteries contracts
and relaxes to regulate the blood
pressure and the flow of blood.
Involuntary