Warm Up Study for Skeletal System Quiz (SILENTLY) 5 Functions of the Skeletal System Types of Joints (how they move, where they are) Layers of Bone Axial Skeleton Appendicular Skeleton

Quiz 12 Minutes to complete When finished, read silently

Muscular System

Muscular System You have over 600 muscles in your body!

Vocabulary Muscle: An organ made of muscle tissue, which moves a particular bone, part, or substance of the body Contract: to make smaller, decrease. When you flex a muscle you are contracting it. Expand: to make larger, increase. When you relax a muscle you are expanding it Homeostasis: a condition needed for good health in which an organisms keeps a relatively stable internal environment Peristalsis: the wavelike contraction of stomach muscles which help to churn up food

Muscular System Functions Movement Maintaining Body Temperature Posture

Movement Muscles are connected to bones by tendons Muscles provide the pull that bones need to move Muscles contract, cause movement at joints

Maintaining Body Temperature Normal Human Body temp = 98.6F It stays this way because of your muscles *When muscles contract, they release heat Shiver = quick muscle contractions to warm you up

Posture Muscle constantly contract and relax or make small changes to hold you up right The muscles of the body also make joints strong

3 Types of Muscles 1.Skeletal Muscle Attached to your bones

2. Smooth Muscles Inside some organs like the stomach

3. Cardiac Muscle Your heart

Types of Muscles Voluntary: Controlled directly by your thoughts Skeletal Muscle: muscle attached to bones by tendons Involuntary: Move without you thinking about it Smooth Muscle: muscles of internal organs (stomach) Cardiac Muscle: muscle that makes up your heart

Voluntary & Involuntary Muscle Lab Worksheet pg. 28 Work with person sitting next to you Instead of mirror, you have a partner

Muscular System Packet Begin Work to Complete Packet

How do muscles grow? 27B

Exit Ticket – no notes Your stomach is made of Cardiac Muscle Skeletal Muscle Smooth Muscle Voluntary Muscle Which is not a function of the muscular system? Posture Movement Protection Maintaining Body Temperature. 3. What is the difference between Voluntary and Involuntary Muscle?

Warm Up *Put last night’s homework on desk to be graded (39 and 40 of packet) Answer on notebook paper to turn in. You do not have to write questions. Why do you think it is important that the heart is an involuntary muscle? 2. Why do you think it is important that the muscles in our legs are voluntary muscles?

Yesterday’s Exit Your stomach is made of Cardiac Muscle Skeletal Muscle Smooth Muscle Voluntary Muscle Which is not a function of the muscular system? Posture Movement Protection Maintaining Body Temperature. 3. What is the difference between Voluntary and Involuntary Muscle? Voluntary = you control and decide when it moves Involuntary = Automatic, your body does it without you telling it to

Video Review http://www.makemegenius.com/video_play.php?id=101

Muscles of Digestion Chewing Food = Voluntary Swallowing Food = Voluntary Food Traveling Through Intestines = Involuntary Peristalsis = Involuntary So is digestion voluntary, involuntary or both? BOTH

Today’s Agenda 1. Finish Packet Started Yesterday 2. Read 27B in textbook. Explain why exercise helps muscles get bigger. 3. Complete Types of Muscle Charts (use 25B for help) 4. “How Many Muscles Does it Take to Smile?” Article 5. “Your Bones and Muscles” Article

Exit The muscular system is made of both Voluntary and Involuntary muscles, which type aid in digestion? Both Neither Voluntary Involuntary 2. When you are cold, your body shivers. Explain how this is an example of a function of the Muscular System.

Warm Up – put packet on desk Where in your body do you have cardiac muscles? True or False – shivering is an example of your muscles performing one of their main functions Why are skeletal muscles considered voluntary muscles?

Warm Up Review Where in your body do you have cardiac muscles? Heart. The word cardiac means heart! 2. True or False – shivering is an example of your muscles performing one of their main functions True. One function of the muscular system is maintaining body temperature. When you’re cold your body shivers to try to warm you up 3. Why are skeletal muscles considered voluntary muscles? They are considered voluntary because you must tell them to move, they do not move automatically

Quiz Return 6. Ball and Socket 7. Immovable, Skull Blood Cells Protect, Skull, ribs and spine Outside layer Protection, movement, support, mineral storage, blood cell production Protect = keep insides safe Movement = help body move Support = hold you up Blood cell production = bone marrow makes blood Mineral storage = calcium is stored in bones 6. Ball and Socket 7. Immovable, Skull 8. Both are made of bones but axial protects and Appendicular helps you move 9. Sliding or gliding 10. Ball and socket

Packet Review Correct wrong answers! 3 functions of muscular system Movement Maintaining Body Temperature Posture Video review

Agenda *Types of Muscle Charts (use 25B for help) Level of Conscious Control = voluntary or involuntary 2. “How Many Muscles Does it Take to Smile?” Article 3. Flash Cards for CFA 4 4. Magic School Bus 

*Types of Muscle Charts (use 25B for help) Level of Conscious Control = voluntary or involuntary 2. “How Many Muscles Does it Take to Smile?” Article 3. Your bones and muscles article 3. Flash Cards for CFA 4