________ receptors involve the direct opening of an ion channel, whereas metabotropic receptors involve the action of second messenger molecules inside the postsynaptic cell

During puberty, which changes occur first for boys?

A) legs, feet, and hands grow B) facial hair develops C) chest becomes broader D) hips widen

Ms. Clark has been diagnosed with vascular neurocognitive disorder. When scientists examine her brain, they will mainly find:

A) small strokes. B) senile plaques. C) amyloid. D) neurofibrillary tangles.