The urinary system and digestive system are stimulated by which part of the nervous system?
Parasympathetic
Sensory
Sympathetic
Somatic
The Correct Answer is A
A. Parasympathetic: The “rest-and-digest” division that stimulates digestive secretions and motility and promotes urinary activity.
B. Sensory: Carries afferent signals to the CNS but does not itself stimulate visceral organs.
C. Sympathetic: The “fight-or-flight” division that generally inhibits digestion and urinary activity while increasing heart rate and blood pressure.
D. Somatic: Controls voluntary skeletal muscles and does not directly stimulate smooth muscle activity in the digestive or urinary systems.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. The atria contract (systole): Atrial contraction occurs with the P wave and the PR interval, before the QRS complex.
B. The ventricles contract (systole): The QRS complex corresponds to ventricular depolarization, which initiates ventricular contraction (systole) shortly afterward.
C. The semilunar (SL) valves close: SL valve closure happens at the end of ventricular systole (producing the second heart sound), not during the QRS.
D. The atrioventricular (AV) valves open: AV valves open during diastole to allow ventricular filling and are closed during the ventricular depolarization/contraction that the QRS represents.
Correct Answer is C
Explanation
A. Vitamin D: Important for calcium/phosphate balance and has immune roles, but it is not the key vitamin for collagen synthesis.
B. Vitamin K: Required for activation of clotting factors and some bone proteins, not directly for collagen production.
C. Vitamin C: Essential as a cofactor for proline and lysine hydroxylation during collagen synthesis and supports immune function; deficiency impairs collagen formation.
D. Vitamin A: Important for vision, epithelial health, and immune function, but not directly required for collagen hydroxylation.
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