Terri has diabetes mellitus and, as a side effect, has developedketoacidosis. The ketones are making Terri’s blood too acidic(decreasing the pH of her blood). Chemoreceptors in Terri’s medullaoblongata (part of the brain stem) detect this change and send anelectrical message to her respiratory system. Terri will start tobreath faster, increasing the release of more CO₂ thannormal. Since CO₂ forms an acid in the blood, releasingmore CO₂ will bring the blood pH back to normal.

What is the stimulus in thissituation?

• low blood pH (blood too acidic)

• breathing faster

• chemoreceptors

• respiratory system

• medulla oblongata

Terri has diabetes mellitus and, as a side effect, has developedketoacidosis. The ketones are making Terri’s blood too acidic(decreasing the pH of her blood). Chemoreceptors in Terri’s medullaoblongata (part of the brain stem) detect this change and send anelectrical message to her respiratory system. Terri will start tobreath faster, increasing the release of more CO₂ thannormal. Since CO₂ forms an acid in the blood, releasingmore CO₂ will bring the blood pH back to normal.

What is the receptor in thissituation?

• low blood pH (blood too acidic)

• medulla oblongata

• chemoreceptors

• respiratory system

• breathing faster

Terri has diabetes mellitus and, as a side effect, has developedketoacidosis. The ketones are making Terri’s blood too acidic(decreasing the pH of her blood). Chemoreceptors in Terri’s medullaoblongata (part of the brain stem) detect this change and send anelectrical message to her respiratory system. Terri will start tobreath faster, increasing the release of more CO₂ thannormal. Since CO₂ forms an acid in the blood, releasingmore CO₂ will bring the blood pH back to normal.

What is the control center in thissituation?

• respiratory system

• breathing faster

• low blood pH (blood too acidic)

• medulla oblongata

• chemoreceptors

Terri has diabetes mellitus and, as a side effect, has developedketoacidosis. The ketones are making Terri’s blood too acidic(decreasing the pH of her blood). Chemoreceptors in Terri’s medullaoblongata (part of the brain stem) detect this change and send anelectrical message to her respiratory system. Terri will start tobreath faster, increasing the release of more CO₂ thannormal. Since CO₂ forms an acid in the blood, releasingmore CO₂ will bring the blood pH back to normal.

What is the response of the effectorin this situation?

• medulla oblongata

• chemoreceptors

• breathing faster

• low blood pH (blood too acidic)

• respiratory system