luciemcginlay35211 luciemcginlay35211

18-01-2024
Biology

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The ____ NS releases _ at the nerve endings known as ____ to upregulate cardiac activity.
A. Parasympathetic; Norepi; β1 heart receptors
B. Parasympathetic; No; α 1 heart receptors
C. Sympathetic; Acetylcholine; α1 heart receptors
D. Sympathetic; Norepi; β1 heart receptors

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