Skeletal System Flashcards
What are the functions of the Skeleton?
- Protections of Vital Organs
- Muscle Attachment
- Joints for Movement
- Platelets
- Blood Cell Production
- Stores Calcium and Phosphorus
What does it mean when the Skeleton ‘Protects Vital Organs’?
- Cranium Protects the Brain when Heading the Ball in Football
What does it mean when the Skeleton provides ‘Muscle Attachment’?
- Bones Provide Anchors for Muscles to Attach
What does it mean when the Skeleton provides ‘Joints for Movement’?
- Bones act as Levers to Create Movement
What does it mean when the Skeleton provides ‘Platelets’?
- Platelets Clot Blood when we are Cut to Stop the Bleeding
What does it mean when the Skeleton provides ‘Blood Cell Production’?
- Red Blood Cells Carry Oxygen
- White Blood Cells Fight Infection
What does it mean when the Skeleton ‘Stores Calcium and Phosphorus’?
- Calcium and Phosphorus is Stored in the Bones to keep them Strong
What Movements are possible At Joints?
- Flexion
- Extension
- Plantar Flexion
- Dorsi Flexion
- Circumduction
- Rotation
- Abduction
- Adduction
What’s the definition of Flexion?
Decreasing the Angle at the Joint (Bending Movement)
What’s the definition of Extension?
Increasing the Angle at the Joint (Straightening Movement)
What’s the definition of Abduction?
Moving Away from the Middle of the Body (Midline)
What’s the definition of Adduction?
Moving Towards the Middle of the Body (Midline)
What’s the definition of Plantar Flexion?
Pointing the Toes Downwards
What’s the definition of Dorsi Flexion?
Pointing the Toes Upwards
What’s the definition of Rotation?
Rotation Around a Joint or Axis
What’s the definition of Circumduction?
?? Just Guess Lol
What are the Types of Joints?
- Hinge
- Ball & Socket
- Condyloid
- Pivot
Give an example of a Hinge Joint
- Elbow
- Knee
- Ankle
Give an example of a Ball & Socket Joint
- Hip
- Shoulder
Give an example of a Condyloid Joint
- Wrist
Give an example of a Pivot Joint
- Neck
What are the Types/Classification of Bones?
- Long Bones
- Short Bones
- Flat Bones
- Irregular Bones
What do Long Bones do?
- Act as Levers so we can Move
- Examples are the Humerus, Ulna and Femur
What do Short Bones do?
- Are Important for Weight Bearing and to Absorb Shock
- Examples are the Carpals and Tarsals
What do Flat Bones do?
- Usually Protect Organs
- Examples are the Ribs, Pelvis and Scapula
What do Irregular Bones do?
- Have Odd Shapes and Perform a Range of Functions
- Examples are the Bones of the Vertebrae
What do Ligaments do?
- Joins Bone to Bone
- Help Stabilise Joints
- Prevents Dislocation
What do Tendons do?
- Attach Muscle to Bone
- Help Provide Powerful Movements Such as Kicking and Jumping
What order is the Vertebral Column in?
- Cervical (Top)
- Thoracic
- Lumbar
- Sacrum
- Coccyx (Tail/Bottom)
What are the Long Term Effects of Exercise on the Skeletal System?
- Increased bone density
- Bones are stronger
- Prevents osteoporosis (brittle/fragile bones) and reduces fractures
What are the Short Term Effects of Exercise on the Skeletal System?
Haha there isn’t any c:
