The enamel organ, dental papilla, and dental sac collectively form one unit referred to as the:

Which of the following conditions could result in xerostomia?

Cleft lip may occur in week:

Cholecystokinin (CCK) is a ______ hormone that binds to ______ cells in the _________ to cause the release of digestive enzymes.

The Pco2 in the alveolar space is normally about 40 mmHg. After breathing in and out rapidly (hyperventilating) alveolar Pco2 levels may fall dramatically causing arterial Pco2 to _____ and _____ the urge to breathe.

(7 points) In the process of [a] feedback, [b] cells monitor NaCl concentration in the lumen of the [c] convoluted tubule. High NaCl concentrations sensed by these cells trigger the release of [d] which binds to smooth muscle cells on the [e] arteriole causing muscle [f]. The resulting change in blood flow to the renal corpuscle reduces the [g] rate and slows flow through the nephron.

In the kidney, the highest concentrations of urea, Na+ and Cl¯ would be found nearest the:

Oxygen moves from the ____ to the ____, which is from high concentration to low concentration.

Microvilli are:

Which of the following would normally be found in sinusoids?