Which type of synapse is better suited for vision and hearing, and why?A. Metabotropic synapses because they produce quick, brief effectsB. Metabotropic synapses because they produce longerlasting effectsC. Ionotropic synapses because they produce quick, brief effectsD. Ionotropic synapses because they produce longerlasting effects

Which type of synapse is better suited for vision and hearing, and why?A. Metabotropic synapses because they produce quick, brief effectsB. Metabotropic synapses because they produce longerlasting effectsC. Ionotropic synapses because they produce quick, brief effectsD. Ionotropic synapses because they produce longerlasting effects

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter42: Neural Regulation

Section: Chapter Questions

Problem 1TYU: Test your Understanding Know and Comprehend A radially symmetrical animal such as Hydra is likely to...

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Test your Understanding Know and Comprehend A radially symmetrical animal such as Hydra is likely to have (a) a forebrain (b) a nerve net (c) cerebral ganglia (d) a ventral nerve cord (e) cerebral ganglia and a nerve net
Tristan accidentally touches a hot propane torch. He immediately withdraws his hand and then exclaims “ouch!” Why did Tristan exclaim “ouch!” after he had withdrawn his hand from the hot coffee? Select one: a. The threshold of the sensory receptor was exceeded and an action potential to the brain could not be triggered. b. The neural processing is faster through the spinal cord than the processing involving the brain. c. The sensory receptors in the fingers were damaged by the hot torch and were not able to send a fast signal to the brain. d. The hot torch triggered too many receptors and resulted in an excessive number of nerve impulses travelling to the brain. The brain was not able to process all the signals fast enough.
Given what you already know about the sensation of pain, what is the expected change in membrane potential when pain is felt by sensory receptors? Select one: a. The nerve impulses increase in strength and lower the threshold potential. b. The nerve impulses occur more frequently, thereby transmitting more action potentials according to the intensity of pain. c. The nerve impulses occur more frequently and prevent neurons from entering the refractory period. d. The nerve impulses increase in strength, thereby making the maximum membrane potential higher than normal.
What do multiple sclerosis and ALS (amyotropic lateral sclerosis) have in common?a. They both are more common in young men than in young women.b. They both impair the initiation of action potentials.c. They both damage the myelin sheath, disrupting action potential transmission.d. They both impair nerve function in the peripheral nervous system
a) What channels are open at 3 if this was recorded on the axon of a sensory neuron? 1. K+ voltage gated channels/ 2. K+ leak channels/ 3. Na+ ligand gated channels/ 4. Na+ stimulus gated channels/ 5. Na+ voltage gated channels/ 6. Ca+ voltage gated channels/ 7. Cl- ligand gated channels) b) What effect would a weaker stimulus have on C? 1. Greater amplitude (height)/ 2. Lower amplitude/ 3. Narrower curve/ 4. No change/ 5. Wider curve c) What term is used to describe the dip at the region marked by 4? What is its purpose?
Cell bodies of UMN that synapse on LMN lie in all of these areas EXCEPT a) Medulla b) Thalamus c) Pre-motor cortex Pons d) Primary motor cortex
Ganglia are ... a) ... collections of nerve cell bodies outside the CNS b) ... part of a nerve cell c) ... the connection between two nerve cells d) ... collections of nerve fibers in the CNS e) ... a type of glial cells in the brain
If a kitten has one eye shut for its first few weeks of life, its visual cortex becomes insensitive to that eye. Why? a. The receptors die. b. Any axon that is not used for that long becomes unable to respond. c. Activity from the active eye displaces synapses from the inactive eye.
In which of these ways does a metabotropic synapse differ from an ionotropic synapse? a. Its effects are slower to start and last longer. b. Its effects are faster to start and last longer. c. Its effects are slower to start and briefer in duration. d. Its effects are faster to start and briefer in duration.
Emergency room doctors often shine a light into the eyes of patients with head injuries to test their pupillary reflex. The structure that relays the information between the optic nerve and the motor neuron, and the division of the nervous system that the structure is part of , respectively are: Select one: a. an interneuron and the peripheral nervous system b. the occipital lobe and the peripheral nervous system c. the occipital lobe and the central nervous system d. an interneuron and the central nervous system
What evidence led Sherrington to conclude that transmission at a synapse is different from transmission along an axon? a. Chemicals that alter a synapse are different from those that affect action potentials. b. The velocity of a reflex is slower than the velocity of an action potential. c. Stains and microscopic observations demonstrate a gap at the synapse. d. Reflexes can go in either direction, whereas axons transmit in only one direction.
Please ASAP. Thanku. What is a receptor (generator) potential? a. A potential that is generated by the sensory stimulus b. A change in the membrane potential of the receptor cell caused by a physical stimulus c. Compound nerve action potential d. A change in the membrane potential of the ascending axon