_________________ are the chemical messengers that are secreted directly into the bloodstream.
A. Amino Acids
B. Hormones
C. Lipids
D. Neurotransmitters
Select your answer:
Topics:
Bones and Muscles Blood & Blood Vessels Immunity and Vaccines Introduction to Mycology Integumentary System Respiration Anatomy and Physiology Nephrology (Hemodialysis) Cell Diversity - Organization, Tissues, Plants and Animals Health and Social Care Health and Hygiene Degeneration Pathology Body Systems Healthcare Systems and Settings The Circulatory System Cancer (Bio II)Other quiz:
Neurology › ViewHarper is experiencing muscle weakness and respiratory failure due to minimal to no stimulation of the receptors at the neuromuscular junction site by acetylcholine. What is this condition called?
A. Myasthenic crisis
B. Cholinergic crisis
Bacterial Cell Structure › View
Lymph nodes contain white blood cells and lymph fluid.
A. TRUE
B. FALSE