The thymus is most active during ________.
A) fetal development
B) childhood
C) middle age
D) old age
B) childhood
Anatomy & Physiology
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Increased ____ permeability of nodal cells hyperpolarizes the SA node
a. chloride b. iodide c. potassium d. sodium e. zinc
Anatomy & Physiology
Hormones acting in the small intestine include
a. secretin and cholecystokinin. b. secretin and gastrin. c. cholecystokinin and gastrin. d. all of these answers. e. none of these answers.
Anatomy & Physiology
What structure prevents food and drink from entering the trachea, conducts air, and produces sound?
A. Bronchi B. Larynx C. Esophagus D. Nasal cavity E. Pharynx
Anatomy & Physiology
An allergic reaction that is generalized and life threatening is termed ________________________________________
Fill in the blank(s) with correct word
Anatomy & Physiology