Plowman 342 - Neural Control

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Which of the following mechanisms regulate the cardiovascular system?

All of the above (correct)

Mechanical events only

Neurohormonal control only

Neural control only

Which of the following is true about mechanical events in cardiovascular regulation?

They influence venous return (correct)

They cause vasodilation in arterioles

They are not important during exercise

They only affect the heart rate

Which part of the brain stem contains the cardiovascular centers?

Pons

Medulla oblongata (correct)

Cerebellum

Midbrain

What is the function of the cardioaccelerator center?

Increase heart rate (C) Signup and view all the answers

Which nerve is responsible for the signals sent by the cardioinhibitor center?

Vagus nerve (A) Signup and view all the answers

What is the role of the vasomotocenter in cardiovascular regulation?

Innervating the smooth muscles of the arterioles (D) Signup and view all the answers

What is the effect of sympathetic nervous outflow on cardiovascular function?

Increased HR and force of contraction (D) Signup and view all the answers

Which arterioles experience vasodilation during exercise?

Arterioles in skeletal muscle (D) Signup and view all the answers

What is the role of the parasympathetic nervous system in cardiovascular function?

Decrease HR and force of contraction (C) Signup and view all the answers

What is the effect of sympathetic fibers on arterioles?

Vasoconstriction (C) Signup and view all the answers

What is the effect of intrinsic controls on arterioles during exercise?

Vasodilation in most arterioles (D) Signup and view all the answers

Which of the following is not a mechanism of cardiovascular regulation?

Muscular control (D) Signup and view all the answers

What regulates the cardiovascular system?

All of the above (D) Signup and view all the answers

What is the role of mechanical events in cardiovascular regulation?

Influence venous return (C) Signup and view all the answers

Which center is responsible for sending signals that cause an increased HR and force of contraction?

Cardioaccelerator center (D) Signup and view all the answers

What is the role of the cardioinhibitor center?

Decrease HR (D) Signup and view all the answers

Which center innervates the smooth muscles of the arterioles via sympathetic nerves?

Vasomotocenter (D) Signup and view all the answers

What is the role of sympathetic nervous outflow in cardiovascular regulation?

Increased HR (D) Signup and view all the answers

What is the role of the parasympathetic nervous system in cardiovascular regulation?

Opposite responses to sympathetic nervous system (B) Signup and view all the answers

What is the role of sympathetic fibers to the skin in cardiovascular regulation?

Vasodilation (B) Signup and view all the answers

What is the response of arterioles supplying skeletal muscle during exercise?

Vasodilation (B) Signup and view all the answers

What leads to a widespread vasodilation in arterioles supplying skeletal muscle during exercise?

Metabolic (intrinsic) controls (A) Signup and view all the answers

What is the importance of mechanical events in cardiovascular regulation during exercise?

Regulate SV and cardiac output (D) Signup and view all the answers

Which mechanisms of cardiovascular control are more complex and discussed in detail in the following sections?

Neurohormonal control (B) Signup and view all the answers

What regulates the cardiovascular system?

All of the above (D) Signup and view all the answers

What is the role of mechanical events in cardiovascular regulation?

Influence venous return (D) Signup and view all the answers

Which center is responsible for sending signals that cause an increased HR and force of contraction?

Cardioaccelerator center (C) Signup and view all the answers

What is the role of the cardioinhibitor center?

Decrease HR (D) Signup and view all the answers

Which center innervates the smooth muscles of the arterioles via sympathetic nerves?

Vasomotocenter (D) Signup and view all the answers

What is the role of sympathetic nervous outflow in cardiovascular regulation?

Increased HR (B) Signup and view all the answers

What is the role of the parasympathetic nervous system in cardiovascular regulation?

Opposite responses to sympathetic nervous system (B) Signup and view all the answers

What is the role of sympathetic fibers to the skin in cardiovascular regulation?

Vasodilation (C) Signup and view all the answers

What is the response of arterioles supplying skeletal muscle during exercise?

Vasodilation (D) Signup and view all the answers

What leads to a widespread vasodilation in arterioles supplying skeletal muscle during exercise?

Metabolic (intrinsic) controls (C) Signup and view all the answers

What is the importance of mechanical events in cardiovascular regulation during exercise?

Regulate SV and cardiac output (B) Signup and view all the answers

Which mechanisms of cardiovascular control are more complex and discussed in detail in the following sections?

Neurohormonal control (A) Signup and view all the answers

Plowman 342 - Neural Control

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Questions and Answers

Which of the following mechanisms regulate the cardiovascular system?

Which of the following is true about mechanical events in cardiovascular regulation?

Which part of the brain stem contains the cardiovascular centers?

What is the function of the cardioaccelerator center?

Which nerve is responsible for the signals sent by the cardioinhibitor center?

What is the role of the vasomotocenter in cardiovascular regulation?

What is the effect of sympathetic nervous outflow on cardiovascular function?

Which arterioles experience vasodilation during exercise?

What is the role of the parasympathetic nervous system in cardiovascular function?

What is the effect of sympathetic fibers on arterioles?

What is the effect of intrinsic controls on arterioles during exercise?

Which of the following is not a mechanism of cardiovascular regulation?

What regulates the cardiovascular system?

What is the role of mechanical events in cardiovascular regulation?

Which center is responsible for sending signals that cause an increased HR and force of contraction?

What is the role of the cardioinhibitor center?

Which center innervates the smooth muscles of the arterioles via sympathetic nerves?

What is the role of sympathetic nervous outflow in cardiovascular regulation?

What is the role of the parasympathetic nervous system in cardiovascular regulation?

What is the role of sympathetic fibers to the skin in cardiovascular regulation?

What is the response of arterioles supplying skeletal muscle during exercise?

What leads to a widespread vasodilation in arterioles supplying skeletal muscle during exercise?

What is the importance of mechanical events in cardiovascular regulation during exercise?

Which mechanisms of cardiovascular control are more complex and discussed in detail in the following sections?

What regulates the cardiovascular system?

What is the role of mechanical events in cardiovascular regulation?

Which center is responsible for sending signals that cause an increased HR and force of contraction?

What is the role of the cardioinhibitor center?

Which center innervates the smooth muscles of the arterioles via sympathetic nerves?

What is the role of sympathetic nervous outflow in cardiovascular regulation?

What is the role of the parasympathetic nervous system in cardiovascular regulation?

What is the role of sympathetic fibers to the skin in cardiovascular regulation?

What is the response of arterioles supplying skeletal muscle during exercise?

What leads to a widespread vasodilation in arterioles supplying skeletal muscle during exercise?

What is the importance of mechanical events in cardiovascular regulation during exercise?

Which mechanisms of cardiovascular control are more complex and discussed in detail in the following sections?

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