★ Regulation of Heart Rate Quiz
What is the AVN responsible for?
A. Opens up the valves to allow blood through
B. Passing Electrical Waves
C. Decreasing Blood Pressure
Select your answer:

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Nervous & Endocrine Systems Lipids Parts of Human Body Infection Histology - Tissues Sensory System Key Terms Nervous System/Endocrine System SCI CH2-1 Nail Enhancement Vitals Carbohydrates Macromolecules Bacteria & Viruses Disease Prevention DNA Structure, Replication, ProteinsOther quiz:
Anatomy › ViewThe minimum amount of stimulus required for a muscle contraction to occur is the
A. Smooth muscle
B. Threshold stimulus
C. Stay relaxed
D. Acetylcholine
Anatomy and Physiology › View
Describes the side direction of the body
A. Lateral
B. Superior
C. Inferior