-Refer to the H-R Diagram

question 67

Multiple Choice

-Refer to the H-R diagram.Which of the points represents a star in which the proton-proton chain is occurring?

• A)1
• B)2
• C)3

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Definitions:

Pennate

Referring to a type of muscle fiber arrangement that resembles a feather, in which the fascicles attach obliquely to a central tendon.

Deep Inspiration

A large intake of breath that increases lung volume and decreases intrapleural pressure, facilitating the intake of oxygen.

Pectoralis Major

A large muscle in the upper chest that aids in the rotation and movement of the arm across the body.

Diaphragm

A large, dome-shaped muscle located below the lungs that contracts and relaxes to aid in the breathing process.