1. Which way to the anatomy classroom?... This way…
Muscle Tissue
Which way to the anatomy classroom?... This way…

2. Introduction Lets be very honest…
Many of the things that define us as humans and as individuals are based on muscular movements
The ability to walk upright
The ability to play sports
The ability to play the saxophone
The ability to talk a selfie

3. Introduction Here is an unconventional example
My friend Jon is a professional eater
The muscles that he uses defines what he does
In fact we often talk about the different types of muscles that could help him in his competitions

4. Muscle Tissue
Muscle tissue is designed to help movement of the body or in the body
It is a diverse set of tissue that is specialized for contraction
This contraction will pull on two anchored bases and will allow for movement

5. Muscle Tissue There are three main types of muscle tissue
Skeletal Muscle
Cardiac muscle
Smooth Muscle
These three different types of muscles are responsible for the entire movement system of the body

6. Skeletal Muscle
Skeletal muscle is composed of large muscle cells that are designed to make strong contractions
It is a significant amount of your body weight
42% in men
36% in women

7. Skeletal Muscle Skeletal muscle cells can be up to one foot in length
Single muscle cells are often called muscle fibers
Muscle fibers are often bundled with other muscle fibers to increase their strength and resistance to damage
These bundles give your muscle a striped or striated appearance

8. Skeletal Muscle Skeletal muscles are controlled by the nervous system
This means that for a skeletal muscle to contract a signal must come from a set of nerves
Since you have a large amount of control over your nerves, you have a large amount of control over your muscle fibers
This means most of your muscle movements come from striated voluntary muscle

9. Cardiac Muscle Tissue Ok… lets try an experiment
On the count of three I would like everyone to try to make their heart stop beating for three seconds
This is not long enough for a change in our bodies
Ready…
Set…
Go!

10. Cardiac Muscle Tissue
Cardiac muscle tissue is located in the heart and is designed for long term involuntary use
These cells are designed to contract many times a minute for the entirety of a human life
When they decide to take a 10 minute break… an organism dies
Cardiac muscle cells are referred to as cardiocytes

11. Cardiac Muscle Tissue
Cardiac tissue anchors on itself so it forms very strong interconnections with itself
This creates branching networks of muscle cells that are interconnected
These connections occur at places called intercalated discs

12. Cardiac Muscle Tissue
Cardiac muscle cells do not wait for a nerve stimulus to start a contraction
Instead they use a signal that is generated from a group of cells called pacemaker cells
These cells monitor the level of blood needed in the body and send impulses that cause the heart to beat

13. Smooth Muscle Tissue
Smooth muscle tissue is involuntary muscle tissue located in the walls of hollow organs
These muscles are designed to create both short and long contractions that are not controlled the organism
Imagine how much concentration and effort it would take for someone to control food from their mouth until it left them as waste

14. Smooth Muscle Tissue
The smooth muscle tissue that lines the body is controlled by the nerves in the brain
However the part of the brain that controls the smooth muscle tissues is at the base of the brain
This is the area of the brain that we have very little (almost no) control over

15. Smooth Muscle Tissue
Smooth muscle is often found in flat sheets that line organs
If it was bulky it would block these hollow organs
This means that it does not bundle the same way that skeletal muscle does
Because of the lack of muscle control by the brain and the lack of bundles of fibers smooth muscle is referred to as nonstriated involuntary muscle