Generate Quiz 6A8085FE87E7E

osteoarthritis. This type of arthritis is thought to be non-inflammatory and is the most prevalent type.

Skeletal muscles are those that are connected to the bones. Skeletal muscles are striated and voluntary.

Large pectoralis muscles, which depress the wings at the shoulder, are the main source of power for birds’ flight. Take a look at the picture below:

Sarcomeres, which are found in between two z-lines in a muscle, are the fundamental building block of muscle tissue.

Since smooth muscles are better suited for prolonged, slow activity, Option A is incorrect.

Since the primary energy source for skeletal muscles is glucose, option B is incorrect.

Given that skeletal muscles contain more myoglobin, option C is correct.

Since cardiac muscles have more mitochondria, option D is not correct.

The fibrous connective tissue that binds bones together is called a ligament.

The mechanism by which muscles contract to generate force is explained by the sliding filament theory. A contraction is produced when the actin and myosin filaments in the muscle fibers’ sarcomeres bind together to form cross-bridges and glide past one another.

The actin and myosin filaments slide inward toward the sarcomere’s center during a cross bridge cycle, which reduces the spacing between neighboring Z lines. Both B and C indicate the same thing, which is obviously false: that the filaments slide away from the sarcomere’s center.

Sarcomeres can be distinguished from one another by Z-discs. This area gives rise to actin filaments, which are connected by a number of intricate protein structures.

A motor unit consists of a motor neuron and every skeletal muscle cell it activates. Each motor neuron’s axon contains a large number of axonal terminals. Neuromuscular junctions are the actual spaces that exist between muscle cells and axonal endings.