Components of the upper respiratory system include all of the following except the

Surface tension at the surface of the water and air in alveoli resists inspiration. To decrease this surface tension, the great (type II) alveolar cells release

Which of the following descriptions best matches the term nephron loop (loop of Henle)?

Which of the following correctly traces the route of air flow in the respiratory tract?

The larynx, trachea, bronchi, and bronchioles all make up the

The process of filtration is driven mainly by

Capillaries that surround the proximal convoluted tubules are

Renal blood flow is about

The position of the kidneys in the abdominal cavity is stabilized by

A patient excretes a large volume of very dilute urine on a continuing basis. This is may be due to