Define hormone and target cell.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Question
Define hormone and target cell.
Expert Solution
Step 1
Endocrine glands are ductless glands of the endocrine system that emit their outputs, hormones, immediately into the blood. The endocrine system's primary glands comprise the pituitary gland, pancreas, pineal gland, testes, ovaries, thyroid gland, parathyroid gland, hypothalamus, and adrenal glands.
Step 2
Hormones are chemical carriers emitted into the blood or extracellular fluid by one cell that influence other cells' functioning. Hormone influences only a restricted number of cells, which are called ed target cells
The hormone is the organic material emitted by plants and animals that functions in physiological actions and conserving homeostasis.
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