Human Physiology: From Cells to Systems (MindTap Course List)
9th Edition
ISBN: 9781285866932
Author: Lauralee Sherwood
Publisher: Cengage Learning
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When the head is moved, the fluid inside the membranous portion of a semicircular canal tends to remainstationary because of the _______________________ of the fluid.
Explain how the semicircular canals of the ear are designed to detect rotation of a human head in any directional plane.
b) When the muscles connected to the crystalline lens contract fully, its focal length is 16.5000 cm. With this focal length, how far away must an object be to form sharply focused images on the retina? (Note: this distance is called the far point of vision.)
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- Within the vestibular system of vertebrates, hair cells help detect movement when their cilia are bent by Multiple Choice a) the tectorial membrane. b) statoliths. c) gravity. d) otoliths. e) the basilar membrane.arrow_forwardStructure 5 contains the _________. hair cells that detect angular acceleration of the head hair cells that detect linear acceleration of the head macula and utricle basilar membrane and hair cells that detect soundarrow_forwardUsing a line diagram, show how parallel rays of light are brought to a focus on the retina. Explain how this focus is maintained as the distance from the object to the eye is increasedor decreased (that is, explain accommodation).arrow_forward
- put the following in the correct order of the most directly visual processing pathway from eyes to brain. a. lateral geniculate meuron b. ganglion cell. c. visual cortex neuron d. biploar cell e. optic nerve f. photorecpetorarrow_forwardThe inner ear is responsible for both hearing and balance. One of the diseases affecting the inner ear is Meniere's disease. Affected individuals often experience vertigo, among other symptoms. Vertigo is a sensation that the surrounding is spinning or swaying in the absence of any body movement. Which of the following rows correctly identifies the affected structure and process in individuals experiencing vertigo? Select one: a. Structure Process Semicircular canals Rotational equilibrium b. Structure Process Semicircular canals Gravitational equilibrium c. Structure Process Organ of Corti Gravitational equilibrium d. Structure Process Organ of Corti Rotational equilibriumarrow_forwardName a sensory spot of equilibrium found in ampullae of semicircular canals.arrow_forward
- Compare and contrast how the hair cells work in the semicircular canals, the vestibule, and the cochlea, in each case describing exactly how a stimulus is elicited.arrow_forwardWhich of the following components listed is not a part of the spiral organ? (a) the tectorial membrane, (b) the inner hair cells, (c) the outer hair cells, (d) the spiral ganglion.arrow_forwardExplain how movements of the basilar membrane affect hair cells, and how hair cells can stimulate associated sensory neurons.arrow_forward
- Microstimulation of area MT in humans would most likely influence visual processing of a. color. b. faces. c. motion. d. places.arrow_forwardWhere would you find the soma of a sensory afferent fiber?arrow_forwardDo answer and explain Which of the following cells in the inner ear are involved in detecting angle of the head? A. Hair cells in the maculae B. Outer pillar cells C. Hair cells in the cristae ampullaris D. Cells of Hensen E. Hair cells in the organ of Cortiarrow_forward
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