The Skeletal System Flashcards
What are the 5 functions of the skeletal system?
Support/Shape Protection Movement Making Blood Cells/ Platelets Mineral Storage
What are the four main types of bone in the skeleton?
Long Bones
Short Bones
Irregular Bones
Flat Bones
What are 3 examples of flat bones and what are there functions?
Cranium- Protects the brain
Scapula- Helps arm and shoulder movement
Pelvis- Helps leg movement
What are two examples of short bones and what are there functions?
Carpals- They form the wrist and give it stability allowing movement of the hand
Tarsals- Bear the body’s weight when on foot
What is the vertebral column made up of? (Give specific names and specific order)
The vertebral column is made up of irregular bones called vertebrae.
- Cervical
- Thoracic
- Lumbar
- Sacrum
- Coccyx
What is the definition of Flexion ? ( and give an example)
Closing a joint
E.g. wrist movement during a basketball throw
What is the definition of Extension?
And give an example
Opening a joint
E.g. kicking a football.
What is the definition of Adduction?
And give an example
Moving towards an imaginary centre line at the midpoint of the body.
E.g. swinging a golf club
What is the definition of Abduction?
And give an example
Moving away from an imaginary centre line at the midpoint of the body.
E.g. bringing back a tennis racket before swinging it
What is the definition of Rotation?
And give an example
Clockwise or anti-clockwise movement.
E.g. The leg movement during a turnout in ballet
What is the definition of Circumdiction?
And give an example
Movement of a limb, hand or foot in a circular motion.
E.g. to bowl a cricket ball
What is the definition of Plantar-Flexion?
And give an example
Extension at the ankle.
E.g. Pointing the toes during gymnastics
What is the definition of Dorsi-Flexion?
And give an example
Flexion at the ankle.
E.g. Lifting the toes during gymnastics
What are the four types of joints?
Ball and socket
Pívot
Hinge
Condyloid
What type of movements does a ball and socket joint allow?
And give an example of where u might find them
A ball and socket joint allows :
- Flexion
- Extension
- Adduction
- Abduction
- Rotation
- Circumduction
An example of where to find some are:
- Hip
- Shoulder
What type of movement do hinge joints allow?
And give an example of where in the body you can find some
Hinge joints allow:
- Flexion
- Extension
An example of where to find some would be:
- Knee
- Ankle
- Elbow
What type of movement do condyloid joints allow?
And give an example of where you can find some
Condyloid joints allow:
- Flexion
- Extension
- Adduction
- Abduction
- Circumduction
An example of where to find some are:
- Wrist
What type of movement do pívot joints allow?
And give an example of where you can find some
Pívot joints allow:
Rotation
An example of where to find some are :
- Neck ( atlas and axis)
What are the three types of Connective Tissues and what are their functions?
- Cartilage - Acts as a cushion between bones to prevent damage during joint movement
- Ligaments - Holds Bones together to help maintain the stability of the skeleton during movement.
- Tendons - Attach muscles to bones to allow bones to move when muscles contract.