Which single muscle contributes most to normal, resting inspiration? Which single muscle contributes most to normal, resting expiration?

What will be an ideal response?


The diaphragm muscle provides most of the force for inspiration. Normal expiration is primarily a result of the diaphragm relaxing, and expiratory muscles do not contribute.

Anatomy & Physiology

You might also like to view...

The lower the pH, the greater the number of hydrogen ions released by a chemical into solution

Indicate whether the statement is true or false

Anatomy & Physiology

Explain how these statements differ, and identify which one(s) is/are correct. Explain what is wrong with each incorrect statement.

A. A chemical reaction is at equilibrium when there is no further change in substrates. B. A chemical reaction is at equilibrium when the amounts of substrates and product no longer change. C. A chemical reaction stops when it reaches equilibrium. D. A chemical reaction is at equilibrium when the amount of substrate equals the amount of product.

Anatomy & Physiology

Which of the following is a type of loose fibrous connective tissue?

A. Tendons B. Adipose tissue C. Ligaments D. Cartilage

Anatomy & Physiology

Which term refers to shrinkage of tissue due to a decrease in cell size?

A. Apoptosis B. Atrophy C. Hypertrophy D. Necrosis

Anatomy & Physiology