Cardiovascular Innervation Quiz

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Questions and Answers

Which vertebral level does the vagus nerve pass through the diaphragm with the esophagus?

  • T5
  • C7
  • L1
  • T10 (correct)

Which type of fibers carry autonomic (visceral or involuntary motor) signals?

  • GVA
  • GVE (correct)
  • SVE
  • GSA

Which types of fibers are responsible for general sensation such as pain/temperature and visceral sensation such as pressure?

  • GVE and GSA
  • GSA and GVA (correct)
  • GVA and SVA
  • GVE and GVA

Which cranial nerve gives rise to the superior and inferior cervical cardiac branches?

<p>Vagus nerve (A)</p> Signup and view all the answers

Which fibers carry taste sensations from the epiglottis?

<p>SVA (B)</p> Signup and view all the answers

Which division of the autonomic nervous system supplies blood vessels?

<p>Sympathetic division (A)</p> Signup and view all the answers

Which division of the autonomic nervous system supplies the heart?

<p>Both divisions (A)</p> Signup and view all the answers

What is the main effect of parasympathetic stimulation on the heart?

<p>Decrease strength of contraction (B)</p> Signup and view all the answers

What is the main effect of sympathetic stimulation on the heart?

<p>Increase heart rate (D)</p> Signup and view all the answers

What is the difference between an injury to a perivascular nerve bundle and an injury to a paravascular nerve?

<p>Perivascular nerves run along the arteries, while paravascular nerves supply the arteries themselves (A)</p> Signup and view all the answers

Which of the following accurately describes the innervation of the cardiovascular system?

<p>The cardiovascular system is innervated by both the sympathetic and parasympathetic nervous systems. (D)</p> Signup and view all the answers

What are the two divisions of the autonomic nervous system involved in cardiovascular innervation?

<p>Parasympathetic and sympathetic divisions (B)</p> Signup and view all the answers

Which of the following is primarily responsible for motor (efferent) control in the autonomic nervous system?

<p>Sympathetic nervous system (A)</p> Signup and view all the answers

What is the general effect of sympathetic innervation on target organs in the cardiovascular system?

<p>Increased heart rate and blood pressure (B)</p> Signup and view all the answers

What is the role of autonomic pathways in mediating referred pain from the heart?

<p>Autonomic pathways indirectly contribute to the perception of pain from the heart. (D)</p> Signup and view all the answers

Which cranial nerve contains both motor and sensory fibers?

<p>Cranial nerve IX (B)</p> Signup and view all the answers

Where does the Glossopharyngeal Nerve exit the central nervous system?

<p>At the medulla (C)</p> Signup and view all the answers

Which nerve supplies structures in the head and neck as far inferiorly as the lower pharynx?

<p>Glossopharyngeal Nerve (Cranial nerve IX) (B)</p> Signup and view all the answers

Which fiber type of the Glossopharyngeal Nerve carries somatic sensations from the skin of the external ear and oropharynx?

<p>GSA (general somatic afferent) (C)</p> Signup and view all the answers

Which ganglia are associated with the Glossopharyngeal Nerve?

<p>Superior and inferior ganglia (D)</p> Signup and view all the answers

Where do the cardiopulmonary splanchnic nerves synapse in the sympathetic chain?

<p>At the cervical and upper thoracic levels (D)</p> Signup and view all the answers

Where are the second cell bodies of the cardiopulmonary splanchnic nerves located?

<p>At the Stellate Ganglion or the Middle Cervical Ganglion (C)</p> Signup and view all the answers

What is the location of the cardiac plexus?

<p>At the base of the heart (B)</p> Signup and view all the answers

What other structures is the cardiac plexus near and thus vulnerable to injury if they are affected by a disease process?

<p>The tracheal bifurcation (A)</p> Signup and view all the answers

What is the function of the parasympathetic fibers in the cardiac plexus?

<p>To decrease the rapidity and force of contractions (C)</p> Signup and view all the answers

Which of the following accurately describes the pathway of GVA fibers from the heart to the spinal gray matter?

<p>They run from peripheral to central along sympathetic pathways. (B)</p> Signup and view all the answers

Which spinal level is most likely to produce discomfort in cases of cardiac distress?

<p>T1-3 (B)</p> Signup and view all the answers

Which of the following is true about cardiac referred pain in females?

<p>It commonly involves the neck and back. (B)</p> Signup and view all the answers

What is the primary function of visceral monitoring fibers from the pelvis?

<p>To carry information regarding stretch and chemoreceptors back to the CNS. (B)</p> Signup and view all the answers

Which of the following accurately describes the composition of the cardiac plexus?

<p>GVE fibers from vagus, GVE fibers from T1-5, GVA fibers of vagus, GVA fibers of T1-5 (A)</p> Signup and view all the answers

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