Question

D. Differentiate between

1. Movable and Immovable joints.
2. Cardiac muscles and Skeletal muscles.​

Answer 1

Explanation:

1. Differentiate between movable and immovable joints. * Movable joints allow greater freedom of movement. * Immovable joints don't allow any kind of movement of the bones they connect. * Synovial joints contain a synovial cavity.

2. Cardiac muscle is involuntary and found only in the heart. Skeletal muscle is striated in regular, parallel bundles of sarcomeres. Cardiac muscle is striated, but the bundles are connected at branching, irregular angles called intercalated discs. Skeletal muscle tissue is about 15% denser than fat tissue.