The Skeletal and Muscular The Skeletal and Muscular SystemsSystems

http://biodeluna.wordpress.com/

Muscular System

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http://www.lifesci.utexas.edu/faculty/sjasper/images/john21.19.jpg

http://www.bio.psu.edu/

http://www.bio.psu.edu/

http://www.bio.psu.edu/

Types of muscles:       •Cardiac – involuntary muscle of the heart wall. •Smooth – involuntary muscle of the stomach, intestine, and blood vessels.

•Skeletal – voluntary, striated muscles attached to bones.

CompleteComplete:

http://www.texaseducator.com/family/jbouyer/lessons/Science/askew/mycourses/bbones.htm

Types of muscles:       •CardiacCardiac – involuntary muscle of the heart wall. •SmoothSmooth – involuntary muscle of the stomach, intestine, and blood vessels.

•SkeletalSkeletal (or striatedor striated)– voluntary, striated muscles attached to bones.

http://www.texaseducator.com/family/jbouyer/lessons/Science/askew/mycourses/bbones.htm

http://www.sirinet.net/~jgjohnso/muscle.html

Muscle structure

Find the number for each muscle

1. Gastrocnemius4. Sternocleidomastoid9. Biceps3. Deltoid6. Hamstring group8. Triceps 2. Sartorius10. Extensor Group7. Rectus Abdominus5. Tibialis

1. Gastrocnemius4. Sternocleidomastoid9. Biceps3. Deltoid6. Hamstring group8. Triceps 2. Sartorius10. Extensor Group7. Rectus Abdominus5. Tibialis

How many…?

• There are about

muscles in the human body.

How many…?

• There are about

musclesmuscles in the human body.

• Muscles which cause movement of a joint are connected to two different bones and contract to pull them together.

An example would be the contraction of the biceps and a relaxation of the triceps. This produces a bend at the elbow. The contraction of the triceps and relaxation of the biceps produces the effect of straightening the arm.

http://ccfa3071.blogspot.com/http://www.iposture.com/learn_fh_agonist-antagonist.php

http://www.usgyms.net/muscles.htm

                              

   

                           

                                

 

                               

    

                          

                            

                               

    

                          

                        

                             

   

                                                            

Skeletal System

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The Five main functions of the human skeleton

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The Five main functions of the human skeleton1. Protect the vital organs we talked

about last week

2. Give us shape - SupportSupport

3. Allow us to movemove because our muscles are attached to our bones

4. Storage of nutrients such as calcium and silicon

5. Formation of blood cells

http://yulifero.blogspot.com/2011/01/es-que-es-lenton-m

an.html

How many bones do we have?How many bones do we have?

http://scienceramiro.blogspot.com/2010_10_01_archive.html

How many bones do we have?How many bones do we have?

• We humans have a total of 206 sizable bones in our bodies.

• There are also 6 additional bones, 3 in each ear, known as the ossicles (little bones).

• So the grand total is:

Answer from:http://www.medicinenet.com/script/main/art.asp?articlekey=6884

How are bones connected together?• By Ligaments:

A ligament is a tough band of white, fibrous, slightly elastic tissue. This is an essential part of the skeletal joints; binding the bone ends together to prevent dislocation and excessive movement that might cause breakage. Ligaments also support many internal organs; including the uterus, the bladder, the liver, and the diaphragm .

• By Joints: constructed to both allow movement and provide mechanical support.

Types of Joints:

– Fixed joints (such as in the skull,

which consists of many bones)

– Hinged joints (such as in the fingers and toes)

– Ball-and-socket joints (such as the shoulders and hips).

The Human Skeleton 1. Carpals

2. Cranium

3. Femur

4. Innominate

5. Mandible

6. Metacarpals

7. Metatarsals

8. Phalanges

9. Rib

10. Scapula

11. Sacrum

12. Vertebra

1. Clavicle

2. Fibula

3. Humerus

4. Patella

5. Radius

6. Sternum

7. Tarsals

8. Tibia

9. Ulna

1. Carpals

2. Cranium

3. Femur

4. Innominate

5. Mandible

6. Metacarpals

7. Metatarsals

8. Phalanges

9. Rib

10. Scapula

11. Sacrum

12. Vertebra

1. Clavicle

2. Fibula

3. Humerus

4. Patella

5. Radius

6. Sternum

7. Tarsals

8. Tibia

9. Ulna

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The Human Skeleton

State four long-term benefits of exercise.

http://tati86.deviantart.com/art/jogging-trio-167305167?q=boost%3Apopular%20jogging&qo=75

State four long-term benefits of exercise.

• increase in size of the muscles used,• reduction of heart rate and increase in stroke volume,• more enzymes made in the muscles, • stronger ligaments and tendons,• more flexibility at the joints,• possibly loss of excess body fat, • possibly reduced chance of premature heart attack • Healthy body and mind.• (any four).

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WEB Resources

The Skeleton, Bones and Joints LINK from GCSE Bitesize

• Revise The skeleton, bones and joints• Activity on The skeleton, bones and joints• Test

Muscles and movementLINK from GCSE Bitesize

• Revise Muscles and movement• Activity on Muscles and movement• Test

Games to learn.

• Whack-A-Bone

• Poke-A-Muscle

De la exposición BODIES "Body Worlds" http://www.vistaalmar.es/content/view/1034/212/