The Helium Flash Is Another Name for a Sudden

question 198

Multiple Choice

The helium flash is another name for a sudden

• A) release of energy at the end of helium burning due to core contraction.
• B) onset of helium fusion reactions in red giant and supergiant stars of any mass.
• C) onset of helium fusion reactions in the core of a low-mass red giant star.
• D) appearance of helium during a supernova explosion (explosion of a star at the end of its life).

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Definitions:

Extensor Aponeurosis

A tough, fibrous tissue that connects the extensor muscles in the hand or foot to the bone, helping to extend the digits.

Pronator Quadratus

A square-shaped muscle on the distal forearm that helps in pronating the forearm.

Semimembranosus

One of the three hamstring muscles located at the back of the thigh, important for thigh extension and knee flexion.

Pronator Teres

A muscle in the forearm that helps in pronating the wrist, turning the hand so the palm faces downwards or backwards.