Flashcards
Skeletons
Cards in this deck (21)
- 13 ADVANTAGES OF AN INTERNAL SKELETON-Bones grow with the body
-Easy to attach muscles to bone
-Provides better flexibility - 2External Skeletons (exoskeletons) are made of...CHITIN
- 3TELL ME ABOUT LONG BONES...weigh less
are stronger than solid bones
have a hollow shaft containing bone marrow and blood vessels - 4WHATS OSSIFICATION?All bones in an embryo are made from soft, flexible cartilage. During growth, cartilage is replaced by calcium and phosphorus salts which make the bone hard
- 5Types of bone fracturesSimple Fracture
Greenstick Fracture
Compound Fracture - 6—Simple Fracture -
the bone has broken cleanly - 7—Greenstick Fracture -
the bone hasn't broken completely
- 8—Compound Fracture -
the broken bone has broken through muscle and skin
- 9Osteoporosis is...a condition in which bones are weakened and break more easily, and which older people are more likely to suffer from.
- 10It is dangerous to move people with a suspected fracture because...their spine might be injured and moving it could make it worse
Bone and cartilage can get infected if damaged. - 11A ligament...joins bone to other bones.
- 12A tendon...attaches muscle to bone.
- 13Fixed joints are...Bony plates fused together e.g. the skull.
- 14Hinge joints...bend in only one direction e.g. the elbow and the knee.
- 15Ball and socket joints...allow rotation e.g. the shoulder and the hip.
- 16Synovial membrane...produces synovial fluid.
- 17Synovial fluid...lubricates and cushions bones during movement.
- 18Cartilage...reduces friction between bones and absorbs shock.
- 19Antagonistic muscles...work together. When one contracts, the other relaxes.
- 20What happens when you bend the arm?The biceps contract, pulling the radium bone. The triceps relax.
- 21What happens when you straighten the arm?The triceps contract, pulling the ulna bone. The biceps relax.
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- Description
- Unit 5 - These flashcards cover these topics: 1. Types of Skeletons 2. Long bones 3. Growing bones 4. Broken Bones 5. Joints 6. Moving the Arm
- Created by
- bridget.watts97
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