Podcast
Questions and Answers
What occurs when nerve fibers synapse immediately with a postganglionic neuron?
What occurs when nerve fibers synapse immediately with a postganglionic neuron?
- They become splanchnic nerves.
- They travel up the sympathetic chain.
- They enter a spinal nerve route.
- They end in ganglia. (correct)
Which route do some postganglionic fibers take to reach target organs, primarily sweat glands and blood vessels?
Which route do some postganglionic fibers take to reach target organs, primarily sweat glands and blood vessels?
- Sympathetic nerve route
- Splanchnic nerve route
- Spinal nerve route (correct)
- Peripheral nerve route
What primarily controls glands, cardiac muscle, and smooth muscle?
What primarily controls glands, cardiac muscle, and smooth muscle?
- Sensory Nervous System
- Central Nervous System
- Somatic Nervous System
- Autonomic Nervous System (correct)
Which of the following is NOT a primary organ of the autonomic nervous system?
Which of the following is NOT a primary organ of the autonomic nervous system?
What is a characteristic function of the sympathetic nerve route?
What is a characteristic function of the sympathetic nerve route?
What is denervation hypersensitivity in the context of the autonomic nervous system?
What is denervation hypersensitivity in the context of the autonomic nervous system?
Which type of nerve fibers pass through the sympathetic chain without synapsing?
Which type of nerve fibers pass through the sympathetic chain without synapsing?
What is formed by fibers that issue from the sympathetic nerves to the effectors in the head?
What is formed by fibers that issue from the sympathetic nerves to the effectors in the head?
What is the role of visceral effectors in relation to the autonomic nervous system?
What is the role of visceral effectors in relation to the autonomic nervous system?
Which component is NOT part of a visceral reflex arc?
Which component is NOT part of a visceral reflex arc?
What is a primary function of the sympathetic division of the autonomic nervous system?
What is a primary function of the sympathetic division of the autonomic nervous system?
What is the sequence of neurons in the autonomic output pathways?
What is the sequence of neurons in the autonomic output pathways?
Which division of the autonomic nervous system is responsible for functions such as increasing digestive and urinary activity?
Which division of the autonomic nervous system is responsible for functions such as increasing digestive and urinary activity?
Where are the preganglionic neurosomas of the sympathetic division located?
Where are the preganglionic neurosomas of the sympathetic division located?
What type of fibers connect each paravertebral ganglion to a spinal nerve?
What type of fibers connect each paravertebral ganglion to a spinal nerve?
How do postganglionic fibers exit the sympathetic ganglion?
How do postganglionic fibers exit the sympathetic ganglion?
Which of the following statements accurately describes the autonomic nervous system compared to the somatic motor pathway?
Which of the following statements accurately describes the autonomic nervous system compared to the somatic motor pathway?
Which characteristic is true about the preganglionic fibers of the sympathetic division?
Which characteristic is true about the preganglionic fibers of the sympathetic division?
What is the primary function of the vagus nerve (X) in relation to the digestive system?
What is the primary function of the vagus nerve (X) in relation to the digestive system?
Which structure is associated with the cardiac plexus?
Which structure is associated with the cardiac plexus?
What anatomical region do the pelvic splanchnic nerves primarily serve?
What anatomical region do the pelvic splanchnic nerves primarily serve?
Which nerve is responsible for innervating the parotid salivary gland?
Which nerve is responsible for innervating the parotid salivary gland?
Which plexus is formed by the convergence of nerves from the thoracic region?
Which plexus is formed by the convergence of nerves from the thoracic region?
Which of the following structures is innervated by the abdominal aortic plexus?
Which of the following structures is innervated by the abdominal aortic plexus?
What type of sensory information is typically transmitted by the vagus nerve (X)?
What type of sensory information is typically transmitted by the vagus nerve (X)?
The inferior hypogastric plexus primarily innervates which structures?
The inferior hypogastric plexus primarily innervates which structures?
Which plexus is primarily involved in lung innervation?
Which plexus is primarily involved in lung innervation?
Which area receives innervation from the sacral region?
Which area receives innervation from the sacral region?
What neurotransmitter is primarily associated with sympathetic postganglionic neurons?
What neurotransmitter is primarily associated with sympathetic postganglionic neurons?
Which type of receptor is found on all nicotinic receptors?
Which type of receptor is found on all nicotinic receptors?
What effect does norepinephrine typically have on dermal blood vessels?
What effect does norepinephrine typically have on dermal blood vessels?
Which neurotransmitter is primarily secreted by postganglionic parasympathetic neurons?
Which neurotransmitter is primarily secreted by postganglionic parasympathetic neurons?
What is one reason sympathetic effects tend to last longer than parasympathetic effects?
What is one reason sympathetic effects tend to last longer than parasympathetic effects?
What class of receptors can be either excitatory or inhibitory, depending on the subclass?
What class of receptors can be either excitatory or inhibitory, depending on the subclass?
Which type of adrenergic receptor is primarily responsible for vasoconstriction?
Which type of adrenergic receptor is primarily responsible for vasoconstriction?
What is the effect of dual innervation on heart rate when comparing sympathetic and parasympathetic responses?
What is the effect of dual innervation on heart rate when comparing sympathetic and parasympathetic responses?
Which of the following substances can modulate acetylcholine and norepinephrine function?
Which of the following substances can modulate acetylcholine and norepinephrine function?
What is meant by 'vasomotor tone'?
What is meant by 'vasomotor tone'?
Cooperative effects occur when the two divisions of the autonomic nervous system act on which of the following?
Cooperative effects occur when the two divisions of the autonomic nervous system act on which of the following?
Which of the following organs does not receive dual innervation?
Which of the following organs does not receive dual innervation?
Which class of receptors generally inhibits intestinal motility?
Which class of receptors generally inhibits intestinal motility?
How do parasympathetic effects on glandular secretion generally occur?
How do parasympathetic effects on glandular secretion generally occur?
