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A&P Exam 6 pt. 1
one of the possible sets of exam questions
| Question | Answer |
|---|---|
| Which organs and glands don't have dual autonomic innervation? | sweat glands |
| Receptors that bind norepinephrine and epinephrine are known as | adrenergic |
| neuroendocrine cells of the adrenal medullae secrete | epinephrine and norepinepherine |
| Parasympathetic postganglionic neurons always use acetylcholine receptors | nicotinic |
| the adrenal medullae is innervated by | the sympathetic system only |
| motor neurons of the autonomic nervous system | can either excite or inhibit effector organs |
| the cranial nerves that supply parasympathetic innervation to the thoracic and many digestive organs is | CN X vagus |
| muscarinic receptors are proteins that bind the neurotransmitter | acetylcholine |
| which of the following is correct about the ANS? | all choices are correct |
| In a motor pathway, the first cell in the two-neuron chain is the neuron. | preganglionic |
| Which is not an effector innervated by the ANS? | skeletal muscle |
| Which statement compares the motor system of the SNS and ANS? | the SNS doesn't have ganglia for its motor neurons but the ANS does |
| one division of the ANS is known as the "fight or flight" system, but it can be brought into action without fear or anxiety | exercise |
| which division of the ANS has long preganglionic axons and therefore ganglia that are relatively far from the CNS? | parasympathetic nervous system |
| Which statements are correct concerning the parasympathetic division of the ANS? | contains preganglionic cell bodies in brain stem nuclei helps maintain a homeostasis contains preganglionic cell bodies in the sacral region of the spinal cord |
| the sympathetic division of ANS has | all choices are correct |
| activation of the parasympathetic fibers in the pelvic splanchnic nerves leads to | erection of the male penis and female clitoris |
| preganglionic neurons of the sympathetic division originate in the | lateral horns of the thoracolumbar spinal segments |
| the sympathetic trunks are located | immediately lateral to the vertebral column |
| gray rami from the sympathetic trunk connect and travel to their final destination in | all spinal nerves |
| prevertebral ganglia are located in | anterior to the vertebral column |
| which sympathetic pathway involves only a preganglionic axon going to the effector organ | adrenal medulla pathway |
| stimulation of B2 receptors in the lung causes | bronchodilation |
| autonomic nerve refers to | the continual activity maintained by the sympathetic and parasympathetic divisions |
| which cranial nerve doesn't innervated the eye or it's extrinsic and intrinsic muscles? | CN VIII |
| standing still in an elevator that suddenly lowers stimulates the receptors in the | untricle and saccule |
| to assist with near vision, the ciliary muscle contracts to | make the lens more rounded |
| an area of the retina that contains only cones and is the site of the sharpest vision is | foeva centralis |
| in low light conditions, when a rod is stimulated by light | all answers are correct |
| when we initiate a rotation of our head, it results in bending of cilia on hair cells | in our semicircular ducts |
| distortion of hair cells in the cochlea causes | initiation of action potentials in CN VIII |
| after being funneled by by the auricle into the external acoustic meatus, sound waves pass through the | tympanic membrane, ossicles, and oval window |
| high-frequency sounds activate neurons within the cochlea that are | near the oval window at the base of the cochlea |
| the part of the cochlea that converts pressure waves into changes in membrane potentials is the | spiral organ |
| where is the saccule located? | within the vestibule |
| the middle and inner ear are housed within the bone | temporal |
| the olfactory tracts project | directly to the primary olfactory cortex of the temporal lobe of the cerebrum |
| the flavor of food depends upon | both olfaction and gustation |
| which papillae lack taste buds? | filiform |
| there are five basic taste sensations. select the one mismatched with its stimulating agent | bitter; acids such as those in toxins or poisons |
| certain odors can initiate behavioral and emotional reactions because | there are widespread olfactory associations within the hypothalamus and limbic system |
| any substance that can be smelled is considered a | odorant |
| the olfactory nerves have their receptors in the and extend through the | upper nasal mucosa, ethmoid bone |
| which cranial nerves do not affect the sense of taste? | CN I |
| the structure that dilates and constricts to control pupil size is the | iris |
| the gelatinous mass inside of the eye between the lens and the retina is called the | vitreous humor or body |
| the sense of equilibrium doesn't involve input from | prefrontal lobes |
Created by:
aslayton