The endocrine glands are ductless glands. Therefore, the hormones are secreted directly into the blood flow. Although the hormones are transported throughout the body in the blood, the hormones only influence and affect specific target cells because
A. The hormones have specific molecule receptors
B. The target cells have specific molecule receptors on its membrane surface
C. The walls of blood capillaries are only permeable to a certain type of hormone
D. The hypothalamus controls the hormone to be transported to the target cell
Select your answer:
Topics:
Human Body Hematology Physical Neuron Structure Infectious Diease Fats And Oil Cellular Respiration Biopsychology - Neuroplasticity and Functional Recovery Human Body Systems Muscle Histology Blood and Hematology Coronary Heart Diseases Environment Renal and Gastrointestinal System Nutrition - Digestive SystemOther quiz:
Muscular System › ViewExercise is important for muscles because it
A. helps maintain strength and flexibility.
B. gives muscles more energy.
C. prevents muscles from becoming tired.
D. prevents muscle injuries.
Organisms › View
What are the two main groups of invertebrates?
A. Arthropods and Mollusks
B. Plants and Fungi
C. Birds and Amphibians
D. Fish and Reptiles