3. Muscular System
Muscles are made up of
stretchy fibers and soft
tissues.
There are more than 600
muscles in the human body,
and all of them make up the
muscular system.
4. Muscular System
Muscles are made up of
stretchy fibers and soft
tissues.
There are more than 600
muscles in the human body,
and all of them make up the
muscular system.
Their main function is to make
movement possible.
6. It can either be Involuntary and Voluntary
Voluntary Muscles
7. It can either be Involuntary and Voluntary
Voluntary Muscles
They are muscles that move only by consciously moving them.
Whenever a person walks, chews, writes, waves, or jumps, his or
her muscles pull on the joints of his or her skeletal system, allowing
him or her to move.
8. It can either be Involuntary and Voluntary
Involuntary Muscles
9. It can either be Involuntary and Voluntary
Involuntary Muscles
They are muscles that move automatically, which means that the person has no control
over his or her movement. An example of an involuntary muscle is the heart, which
continuously pumps blood to various organs and tissue in the body even when the
person is asleep.
12. Skeletal Muscles
Skeletal muscles are necessary
when performing day to day
activities such as working,
jumping, dancing, and running.
The skeleton muscles are found
throughout the body. About 30%
to 40% of the total body mass of
an average human composed of
the muscles.
25. Cardiac Muscles
Cardiac muscles are
involuntary muscles.
They move on their
own, which means
that the person does
not consciously think
whether to contract
or to relax them.
26. Cardiac Muscles
The coronary arteries
supply blood to the
cardiac muscles, while
the cardiac veins
drain them of blood
to be supplied to the
other body parts.
27. Cardiac Muscles
Individual cell called
the cardiomyocyte
makes the heart
contract. This
contraction generates
the pressure needed
by the heart to pump
blood throughout the
body.
28. Individual cell called the
cardiomyocyte makes the
heart contract. This
contraction generates the
pressure needed by the heart
to pump blood throughout
the body.
Kinds of Muscles
Skeletal Muscles Cardiac Muscles Smooth Muscles
29. Smooth Muscles
Smooth
muscles are
involuntary
muscles that do
not connect to
the bones, but
control organs
within the body.
35. • attached to the bones
• voluntary
• can flex and relax that allows movement
• striated, or having long and thin lines
• multinucleated, or have more than one nucleus
Smooth Muscles
The same is true with
the muscle in the
artery walls, but
instead of food,
blood passes through
them.
36. • found in walls of blood vessels of organs, and their passageways
• involuntary
• spindle-shaped
• non-striated
• very elastic
• having only a singlenucleus
• arranged in sheets, so they can contract and relax simultaneously
• attached to the bones
• voluntary
• can flex and relax that allows movement
• striated, or having long and thin lines
• multinucleated, or have more than one nucleus
Characteristics of the different kinds of Muscles
Skeletal Muscles
Cardiac Muscles
Smooth Muscles
37. • attached to thebones
• voluntary
• cylindrical
• can flex and relax that allows movement
• striated, or having long and thin lines
• multinucleated, or having morethan onenucleus
• found in the heart
• involuntary
• short, narrow, rectangular, and branched
• striated, or having long and thin lines
• having only a single nucleus
• found in the heart
• involuntary
• short, narrow, rectangular, and branched
• striated, or having long and thin lines
• having only a single nucleus
Characteristics of the different kinds of Muscles
Skeletal Muscles
Cardiac Muscles
Smooth Muscles • found in walls of blood vessels of organs, and their passageways
• involuntary
• spindle-shaped
• non-striated
• very elastic
• having only a single nucleus
• arranged in sheets, so they can contract and relax
simultaneously
38. • attached to the bones
• voluntary
• cylindrical
• can flex and relax that allows movement
• striated, or having long and thin lines
• multinucleated, or having more than one nucleus
Characteristics of the different kinds of Muscles
Skeletal Muscles
Cardiac Muscles
Smooth Muscles
• found in the heart
• involuntary
• short, narrow, rectangular, and branched
• striated, or having long and thin lines
• having only a single nucleus
• found in walls of blood vessels of organs, and their passageways
• involuntary
• spindle-shaped
• non-striated
• very elastic
• having only a single nucleus
• arranged in sheets, so they can contract and relax
simultaneously
39. Characteristics of the different kinds of Muscles
Skeletal Muscles
Cardiac Muscles
Smooth Muscles
• found in the heart
• involuntary
• short, narrow, rectangular, and branched
• striated, or having long and thin lines
• having only a single nucleus
• found in walls of blood vessels of organs, and their passageways
• involuntary
• spindle-shaped
• non-striated
• very elastic
• having only a single nucleus
• arranged in sheets, so they can contract and relax
simultaneously
• attached to the bones
• voluntary
• cylindrical
• can flex and relax that allows movement
• striated, or having long and thin lines
• multinucleated, or having more than one nucleus
41. What are Voluntary Muscles?
What are Involuntary Muscles?
3-5. What are Skeletal, Cardiac, and Smooth
Muscles?
6-13. Write all 7 parts of the Skeletal Muscles.
14-17. Write all 4 parts of the Cardiac Muscles.