Name the kind of joint, and for a synovial joint the kind of synovial joint…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Name the kind of joint, and for a synovial joint the kind of synovial joint.
- The sutures between the flat bones of the skull.
- The joint between two neighbouring vertebrae.
- The knee.
- The shoulder.
- The joint between the atlas and the axis.
- The joint between a carpal and the metacarpal of the thumb.
Need a reminder? The key ideaShow
Joints are fibrous (no movement), cartilaginous (limited) or synovial (much movement: ball and socket, hinge, pivot, gliding, saddle). Myasthenia gravis, muscular dystrophy and tetany affect muscle. Arthritis, osteoporosis and gout affect joints and bones. For a lever at rest, effort times its distance from the fulcrum equals load times its distance from the fulcrum.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. (a) Fibrous, with no movement.
Step 2. (b) Cartilaginous, with limited movement.
Step 3. (c) Synovial, hinge.
Step 4. (d) Synovial, ball and socket.
Step 5. (e) Synovial, pivot.
Step 6. (f) Synovial, saddle.
Answer: (a) fibrous; (b) cartilaginous; (c) hinge; (d) ball and socket; (e) pivot; (f) saddle.
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