Question

While teaching a science class, the instructor mentions that both autocrine and paracrine hormonal actions occur without entering the blood stream. the instructor then asks the students, "what cells do paracrine actions affect?" the student with the correct answer is:?

Answer 1

a dive instructor begins his leson on the shore as he guides his student out into the water what zone are they in

Answer 2

Hormones are chemical messengers secreted from endocrine glands such as thyroid, pituitary gland into blood or extracellular fluid that affect the functioning of cells at distant sites. However, many of the hormones also affect neighboring cells or even have effects on the same cells that secreted the hormone. There are three hormonal actions.

In paracrine action, the hormone acts locally. The hormone diffuses from its source and acts on neighborhood target cells. Whereas, in autocrine action, the hormone acts on the same cell from where it is produced.