Starter:

161 162

Practice /application/Connection/ Exit: ( Answer all questions in complete sentences)

 

Practice /application/Connection/ Exit:4. What is a joint?5. Name the different types of

joints.6. Where can joints be found?7. Your skull protects what

delicate organ?8. How many bones make up

the skull?9. Explain how do muscles

cause movement.10. What are the two types of

muscles and where are they found?

1. Blood is manufactured in what part of the body?

2. What is found where two or more bones come together?

3. What types of connective tissues make up the skeletal system?

Skeletal and Muscular system notes Skeletal and Muscular system notes

2/9/15 2/9/15

February 09, 2015

AGENDA

Objective 7.12 B Identify the main functions of the systems of the human organism, including the circulatory, respiratory, skeletal, muscular, digestive, excretory, reproductive, integumentary, nervous, and endocrine systems by completing notes over the skeletal and muscular systems

1. Starter2. Skeletal/Muscular

Notes3. Questions

Table of Contents

Date Lecture/ Activity/ Lab Page

1/27 Cell State 147-1481/28 Cell Comparison Booklet 149-1501/29 Mitosis Notes 151-1521/30 Mitosis Poster 153-1542/2 Mitosis Sort and Review 155-1562/3 Test Review 157-1582/5-6 Body Systems Overview 159-1602/9 Skeletal and Muscular system notes 161-162

The Skeletal and MuscularSystem

Skeletal System

It’s all about the bones!!!

1. FYI 4 Cool Facts about the Skeletal System1. 20% of your body weight is bone

Do the math (Your body weight) X .20= the weight

of your bones2. There are 30 bones in your skull3. You have 206 bones

More than ½ of these are in your hands and feet

4. Your largest bone is your femur and your smallest bone is in your Ear!

2. Functions of the Skeletal System Provides shape and

support Enables you to move

(works with muscles) Protects internal

organs Produces blood cells Stores materials for

future use (HOMEOSTASIS ALERT!)

3. Shape and Support

Provides Shape and Support for Body Shape depends

on the organ/organ system it needs to protect.

Example: Skull thick and

round to cover brain!

4. Protects Internal Organs

Protect your internal organs Organs can be

easily squished Example:

Heart and breastbone

Lungs and rib cage

Spinal cord and spine

5. Produces Blood Cells

1. Produces substances our body needs Blood cells

(white and red) made in the marrow of the long bones of the arms and legs.

Bone Marrow

6. Stores Materials for Future Use

1. Stores substances until your body needs them Stores calcium

and phosphorus Homeostasis

alert! Bones release

small amounts of Calcium and phosphorus into body when body is running low!

Compact bone – where blood vessels are and minerals are stored

7. Enables you to move

Muscles work with bones to make you move

8. Joints of the Skeletal System

Where two or more bones come together are called joints.

The two kinds of joints are movable

and immovable.

9. Immovable Joints

Joints in the body where there is little or no movement. Examples:

SkullRibs

10. Movable Joints

Joints that allow movement.Most of the joints in the

body are movable.There are 4 types of

movable joints:HingeBall and SocketGlidingPivot

11. Movable Joints of the Skeletal System

Ball and Socket Joints Allows

fullest range of motion

Examples: shoulder and hip

12. Movable Joints of the Skeletal System

Pivot JointsAllows one bones to rotate around another.

Example: neck

13. Movable Joints of the Skeletal SystemHinge Joints

Allows forward and backward motion

Example: knee and elbow

14. Movable Joints of the Skeletal System

Gliding JointsAllows one

bone to slide over another.

Example: wrist and ankle

15. Joints of the Skeletal System

Bones in movable joints are held together by strong connective tissue called ligaments.Ligaments are

like the “tape” that holds bones together.

16. Joints of the Skeletal System

Some joints have a flexible tissue that cushions the end of the bones called cartilage.

Muscular System

The Power to Move, The Power to Live

1. How Do Muscles Work?

Muscles work by contracting or shortening to cause movement, like a spring or rubber band pulling on something when it shortens.

Muscles can only pull they cannot push!!

How do they work?

Muscles are connected to bones by an elastic-like strap called a tendon.

Because muscles cannot push, they have to work in a pair with another muscle to move bones.

While one pulls or contracts the other relaxes.

Cramps caused when muscles contract and stay contracted.

2. Muscle Types

All your muscles can be classified into two categories

1. Involuntary Muscles

2. Voluntary Muscle

3. Involuntary MuscleMuscle that is not under conscious controlYou don’t have to think about

the things these muscles control

Examples:Heart beatingFood digesting

4. Voluntary MuscleMuscle that is under conscious control

Ex. Flexing your arm muscle

5. Types of Muscle Tissue

There are three types of muscle tissue that help our body function Skeletal Muscle Smooth Muscle Cardiac Muscle

They all look differently & have separate functions

6. Skeletal Muscle

Characteristics Voluntary Muscle —these

are the activities you control in your body

Tire quickly Function

Provides force that moves your bones

7. Smooth Muscle

Characteristics Involuntary muscle Lines the inside of your

internal organs, and blood vessels

Tires slowly Function

Churns stomach to help food digestion

Also in the intestines

8. Cardiac Muscle

Characteristics Involuntary Muscle Only found in the

heart Never gets tired

Functions Causes heart to beat

so blood can be pumped to the body.

 

Starter:

161 162

Practice /application/Connection/ Exit: ( Answer all questions in complete sentences)

 

Practice /application/Connection/ Exit:4. What is a joint?5. Name the different types of

joints.6. Where can joints be found?7. Your skull protects what

delicate organ?8. How many bones make up

the skull?9. Explain how do muscles

cause movement.10. What are the two types of

muscles and where are they found?

1. Blood is manufactured in what part of the body?

2. What is found where two or more bones come together?

3. What types of connective tissues make up the skeletal system?

Skeletal and Muscular system notes Skeletal and Muscular system notes

2/9/15 2/9/15