1. Muscular System Ms. Riley Health

2. Muscular System The muscular system: A group of tissues that help the body move There are over 650 muscles Muscles all work the same way to produce movement at a joint: 1.Contract: shorten 2. Extend: lengthen Muscle injury: Strain, cramp, tendinitis, Muscular dystrophpy

3. Types of Muscles 1.Smooth Muscles: Found in organs in the body such as stomach & intestines 2.Skeletal Muscles: Attach to bones and make up to 40% of body ( Bicep & Tricep) 3.Cardiac Muscle: Only found in heart, constantly contracts and relaxes, controlled by brain

4. Facts Tendons help hold muscles to bones Myocardium is the name of the cardiac muscles Muscles can move * Voluntary or Involuntary Skeletal Muscles are called striated because muscle fibers look striped Strongest muscle found in face called : massester

5. Cardiovascular/ Circulatory System Directions: Write your First/Last Name, title, date, and period on blank paper. Please Trace or draw the diagram and label each part with scientific name. Write the facts about the heart on paper also.** * Use the word bank. Facts about the Heart A person’s body has about 60,000 miles of blood vessels The average person has about 9-10 pints of blood in their body. The Heart pumps about 2,000 gallons of blood daily. It takes about 23 seconds for the heart to circulate blood throughout the body. About 3MILLION NEW red bold cells are made in the bone marrow There are 4 main blood types: A B AB and O Blood contains RH factor, so blood is RH positive (+) or RH Negative(-) Blood types must match before getting blood transfusion``````````````

6. Muscle Maker Activity Get into groups of 3 or 4 Get worksheet and write your own name to receive credit See Ms. Riley for equipment and space