Changes in the blood concentration of glucose, oxygen, and hydrogen are detected by ________.

A) baroreceptors
B) chemoreceptors
C) nociceptors
D) proprioceptors
E) thermoreceptors

Chemoreceptors

Sensory receptors that respond to chemical stimuli, involved in taste, smell, and internal body conditions like oxygen and carbon dioxide levels.

Blood Concentration

The amount of a substance per unit volume of blood, indicating the level of various compounds or cells in the bloodstream.

Glucose

An uncomplicated glucose important for energy in living systems and a building block of numerous carbohydrate forms.