Podcast
Questions and Answers
What type of muscle does the somatic nervous system innervate?
What type of muscle does the somatic nervous system innervate?
- Cardiac muscle and smooth muscle
- Skeletal muscle (correct)
- Glands
- All of the above
What is the structure of the efferent pathways in the autonomic nervous system?
What is the structure of the efferent pathways in the autonomic nervous system?
- Three neurons, with the cell body of the postganglionic neuron in the CNS
- Two neurons, with the preganglionic neuron synapsing with the postganglionic neuron (correct)
- Two neurons, with the postganglionic neuron synapsing with the preganglionic neuron
- One neuron extending directly to the effector
Which of the following statements about the autonomic nervous system is true?
Which of the following statements about the autonomic nervous system is true?
- It contains lightly myelinated or non-myelinated neurons with slow conduction (correct)
- It is responsible for controlling voluntary movements
- It is a part of the central nervous system
- It contains heavily myelinated neurons with fast conduction
What neurotransmitter is released by all preganglionic neurons and some postganglionic neurons?
What neurotransmitter is released by all preganglionic neurons and some postganglionic neurons?
What is the function of the postganglionic neuron in the autonomic nervous system?
What is the function of the postganglionic neuron in the autonomic nervous system?
Which of the following statements about the somatic nervous system is true?
Which of the following statements about the somatic nervous system is true?
Which cranial nerve contains parasympathetic fibers that control the pupillary reflex and also the shape of the lens?
Which cranial nerve contains parasympathetic fibers that control the pupillary reflex and also the shape of the lens?
Where do all preganglionic sympathetic fibers originate from in the spinal cord?
Where do all preganglionic sympathetic fibers originate from in the spinal cord?
Which of the following receives sympathetic input ONLY?
Which of the following receives sympathetic input ONLY?
What type of receptors bind acetylcholine?
What type of receptors bind acetylcholine?
What happens to blood vessels when sympathetic fibers are stimulated?
What happens to blood vessels when sympathetic fibers are stimulated?
What happens to the pupils in a brightly lit environment or in close vision?
What happens to the pupils in a brightly lit environment or in close vision?
What is the precursor to retinal stored in the pigmented layer of the retina?
What is the precursor to retinal stored in the pigmented layer of the retina?
What is the correct order of neurons in the autonomic nervous system?
What is the correct order of neurons in the autonomic nervous system?
Which of the following activities is mediated by the parasympathetic nervous system?
Which of the following activities is mediated by the parasympathetic nervous system?
What is the correct order of layers of the neural retina that incoming light passes through?
What is the correct order of layers of the neural retina that incoming light passes through?
What type of photoreceptors are involved in color/high resolution vision?
What type of photoreceptors are involved in color/high resolution vision?
During increased physical activity, which type of receptors are found on the bronchioles and blood vessels serving the skeletal muscles?
During increased physical activity, which type of receptors are found on the bronchioles and blood vessels serving the skeletal muscles?
Where are adrenergic B1 receptors primarily found?
Where are adrenergic B1 receptors primarily found?
Which disease is characterized by a build-up of aqueous humor in the eye, increasing the intraocular pressure?
Which disease is characterized by a build-up of aqueous humor in the eye, increasing the intraocular pressure?
Which of the following statements is TRUE regarding parasympathetic fibers?
Which of the following statements is TRUE regarding parasympathetic fibers?
What happens to the ciliary muscles when sympathetic nerve fibers are stimulated to view a distant object?
What happens to the ciliary muscles when sympathetic nerve fibers are stimulated to view a distant object?
Which cranial nerve contains parasympathetic fibers?
Which cranial nerve contains parasympathetic fibers?
What is the light-absorbing molecule bound to a protein called opsin in visual pigments?
What is the light-absorbing molecule bound to a protein called opsin in visual pigments?
What membrane do the hair cells of the spiral organ rest upon?
What membrane do the hair cells of the spiral organ rest upon?
When sound enters the cochlea, which region will it pass through if it is within our frequency range?
When sound enters the cochlea, which region will it pass through if it is within our frequency range?
What happens to the hair cell when the stereocilia pivot in the direction of the tallest stereocilium?
What happens to the hair cell when the stereocilia pivot in the direction of the tallest stereocilium?
What would lead to conduction deafness?
What would lead to conduction deafness?
What happens to the hair cells when the basilar membrane vibrates?
What happens to the hair cells when the basilar membrane vibrates?
Which structure in the midbrain is involved in the auditory pathway?
Which structure in the midbrain is involved in the auditory pathway?
