ch 16-your body systems. what do i expect explain the functions of the skeletal systems identify...
TRANSCRIPT
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Ch 16-Your Body Systems
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What Do I Expect
• Explain the functions of the skeletal systems
• Identify four types of joints
• List some problem of the skeletal system
• Identify healthful behaviors to keep your skeletal system healthy
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Skeletal System• A body system made up of
bones, joints, and connective tissue
• The skeletal system is the framework(shapes and supports) for your body. The skeletal system works with the muscular system. This allows you to walk, run, jump, bend, lift, and carry.
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What Else Does It Do??
Skeletal system also provides protection for our internal organs.
Name two bones that you can think of that provides protection.
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More Functions…
• There are 206 bones that make up the skeleton of your body.
• Each bones is a living structure that function as storage centers for minerals, such as calcium and phosphorus.
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Back to the Bones• Bones also produce the
body’s blood cells. • Red bone marrow
makes millions of blood cells each day.
• Marrow is a soft tissue in the center of some bones.
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Phosphorus• Phosphorus is an element essential to
metabolize protein, calcium, and glucose (sugar). It is needed for bone and tooth formation (85% of phosphorus is found in the skeletal system), cell growth, heart muscle contraction, and kidney function (waste filtration).
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Study Those Bones
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Human Joints
• Hinge- movement in one direction
• Gliding-bones slide over one another
• Pivot-allow movement with limited rotation
• Ball and socket-bones are able to move in all direction.
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Connective Tissues• Cartilage- strong, flexible, gel like tissue
that cushions your bones. Cartilage reduces friction during movement. Where else is there cartilage?
• Tendons-tough bands of tissues that attach your muscles to bones.
• Ligaments-cordlike tissues that connect the bones in each joint.
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The cartilage is grown in a gel medium
The new cartilage has been put in the defective sight.
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Tendon is being repaired
Tendons attach muscles to bones
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Ligaments attach bone to bone
Anywhere there are human joints there are ligaments and tendons.
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Problems of the Skeletal System
• Our body is strong and durable, but can develop problems because….
• Fracture is….
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Evaluate..what kind are are these?
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Dislocation occurs when a bone is pushed out of it’s joint, usually stretching or
tearing a ligament.
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Sprain-occurs when the ligaments in a join are stretched or twisted and causes
swelling.
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PRICE
• What is PRICE?
• Protect the wound from further injury
• Rest-stay off of it
• Ice the whole area
• Compression-keep it bandaged
• Elevation-keep it above your heart
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Overuse Injuries
• Very common in athletes and in teens.• Shin splint are common among runners and
aggressive walkers. • Shin Splints’ is a term often used to describe
exercise -induced stress reactions upon structures in the lower leg. These structures include bone, muscle, tendon and connective tissue. Shin splints are generally associated with over-use.of your anterior tibialis.
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Scoliosisis a curvature of the spine to one side. It appears to havea slight S or C curve. It can cause back pain and difficultyBreathing. The cause is not known in most cases.
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Osteoporosis• Condition characterized by brittle and
porous bones. It develops because of long term deficiencies of calcium, vitamins, and lack of exercise.
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So… how can I help??
• Eat right, and exercise.
• Make sure and take time to heal before you go back to your sport. (PRICE)
• Use protective gear when playin sports, riding your bike, or skating.
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Short Answer
• Jan understands the importance of eating foods rich in calcium. She is allergic to milk, however. What suggestions can you make that might help Jan??
• Name two ways to protect your bones from injury while playing a sport.
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Lesson 1 Review
• What are joints?
• Name 4 types of joints.
• List three functions of the skeletal system.
• What are two problems of the skeletal system?
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VOCAB STUDY