Contraction of the diaphragm ________ intra-alveolar pressure resulting in ________.

In addition to the normal secretions by the stomach, infants produce __________.

The _______ receives blood from the pulmonary veins.

An increase in the volume of the thoracic cavity _________ the intra-alveolar pressure, which causes __________.

As fatty acids are absorbed, the resulting fat molecules are coated in protein for what reason?

________ and the smaller air passageways are not lined with ciliated mucosae and cannot effectively remove the inhaled particles.

__________ is the formation of fatty deposits along the tunica intima of arterial walls.

The hollow space inside of the digestive tract is the ________.

Much of the mucus in the mouth comes from the _____________ salivary gland under the tongue.

The __________ serves as a center for receiving and integrating sensory input and sending nerve impulses to another respiratory center to make necessary changes in the breathing pattern.