Transcript muscles - stokerscience

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
1. Movement
2. Maintaining Body Temperature
3. 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
1. Your stomach is made of
a)
b)
c)
d)
Cardiac Muscle
Skeletal Muscle
Smooth Muscle
Voluntary Muscle
2. Which is not a function of the muscular system?
a)
b)
c)
d)
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
1. Your stomach is made of
a)
b)
c)
d)
Cardiac Muscle
Skeletal Muscle
Smooth Muscle
Voluntary Muscle
2. Which is not a function of the muscular system?
a)
b)
c)
d)
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
1. The muscular system is made of both Voluntary and
Involuntary muscles, which type aid in digestion?
A. Both
B. Neither
C. Voluntary
D. 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
1. Where in your body do you have cardiac muscles?
2. True or False – shivering is an example of your
muscles performing one of their main functions
3. Why are skeletal muscles considered voluntary
muscles?
Warm Up Review
1. 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
1. Blood Cells
6. Ball and Socket
2. Protect, Skull, ribs and spine
7. Immovable, Skull
3. Outside layer
4. Protection, movement, support,
mineral storage, blood cell
production
5. Protect = keep insides safe
8. Both are made of bones
but axial protects and
Appendicular helps you
move
9. Sliding or gliding
Movement = help body move
Support = hold you up
Blood cell production = bone marrow
makes blood
Mineral storage = calcium is stored
in bones
10. Ball and socket
Packet Review
 Correct wrong answers!
3 functions of muscular system
1. Movement
2. Maintaining Body Temperature
3. Posture
 Video review
Agenda
1. *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 
1. *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