The Musculoskeletal System 4/27/2017

The Musculoskeletal System The organs of the musculoskeletal system are the bones and skeletal muscle 4/27/2017

Structural features of the Skeleton There are three types of connective tissue in the skeleton Bones Cartilage Ligaments 4/27/2017

Joints in the Human Body 4/27/2017

About how many muscles do you think the human body has? Answer = 650 4/27/2017

Where do we have muscles? We have muscles all over our body! Legs Arms Heart Hands Face Tongue Eyes Ears Neck Stomach 4/27/2017

How many muscles do you think are in our face and neck? Our face and neck contain about one-fourth of the muscles in our body. That is about 162 muscles. 4/27/2017

What conclusion can we make from these two statements? Smile or Frown? It takes 17 muscles to smile and 43 muscles to frown It takes 26 muscles to smile and 62 muscles to frown                                 What conclusion can we make from these two statements? 4/27/2017

What are muscles made of? Muscles are made of hundreds of tiny fibers. 4/27/2017

Can you feel some of your muscles? Hold a book in front of you. Where in your arm do you feel the muscles move? Move your neck from left to right and up and down. What do you feel? Move your fingers around. Where do you feel those muscles move? Stand on your toes. Do you feel the muscles in the back of your legs? 4/27/2017

What do muscles need? Muscles need oxygen in order to work properly. When they do not get enough oxygen, they can get sore or cramp up. When the muscles in your heart do not get enough oxygen, you can have a heart attack. 4/27/2017

How do muscles move our bones? Do muscles pull or push our bones? Muscles pull in order to make our bones move. Our muscles usually work in pairs. One muscle contracts (pulls) while the opposite muscle relaxes 4/27/2017

When your arm is straight: Your bicep is relaxed Your Tricep is contracted 4/27/2017

Your bicep is contracted When you arm is bent: Your bicep is contracted Your tricep is relaxed 4/27/2017

There are three different types of muscle in our body. 3 Types of muscles There are three different types of muscle in our body. Skeletal muscles Smooth muscles Cardiac muscles 4/27/2017

Skeletal muscles Are voluntary muscles that move bones. Are called striated because they look striped Are attached to tendons, which are attached to bones. 4/27/2017

Cardiac Muscle A special kind of involuntary, striated (striped) muscle that makes up the heart. The muscles in the heart contract in order to pump the blood through your body. If your muscle stops pumping the blood, you have a heart attack. 4/27/2017

Smooth Muscles Are involuntary muscles that make up the blood vessels, stomach, intestines, and other organs We can not control our smooth muscles Examples: Bladder Uterus Esophagus 4/27/2017

What happens when we do not use our muscles? Our muscles get smaller, which makes them weak. Can you think of some examples of when this may happen? 4/27/2017

Problems with the Musculoskeletal System Osteoporosis Rheumatoid arthritis Fibromyalgia 4/27/2017