Human Physiology, 14th edition (2016)

258 Chapter 9 activity increases (during more intense exercise). A reverse of this antagonism is seen in the digestive tract, wh ...

The Autonomic Nervous System 259 Table 9.7 | Adrenergic and Cholinergic Effects of Sympathetic and Parasympathetic Nerves Effect ...

260 Chapter 9 parasympathetic division on the internal urethral sphincter. This smooth muscle, together with the external urethr ...

The Autonomic Nervous System 261 Organs Type of Receptors Reflex effects Lungs Stretch receptors Further inhalation inhibited; i ...

262 Interactions Integumentary System The skin houses receptors for heat, cold, pain, pressure, and vibration (p. 270) Afferent ...

The Autonomic Nervous System 263 Sofia’s pupils were dilated for her eye exam by atropine, a drug that specifically blocks musca ...

264 Chapter 9 B. All preganglionic autonomic nerve fibers are cholinergic (use ACh as a neurotransmitter). All postganglionic p ...

The Autonomic Nervous System 265 A fall in cyclic AMP within the target cell occurs when norepinephrine binds to which of adren ...

266 Refresh Your Memory Before you begin this chapter, you may want to review these concepts from previous chapters: ■ Cerebral ...

267 10.1 Characteristics of Sensory Receptors Each type of sensory receptor responds to a particular modality of stimulus by cau ...

268 Chapter 10 Receptors also can be grouped according to the type of sensory information they deliver to the brain. Propriocept ...

Sensory Physiology 269 ( fig. 10.2 ). The pacinian corpuscle, however, is a phasic receptor; if the pressure is maintained, the ...

270 Chapter 10 contrast to the more slowly adapting Ruffini endings and Merkel’s discs. There are far more free dendritic ending ...

Sensory Physiology 271 Neural Pathways for Somatesthetic Sensations The conduction pathways for the somatesthetic senses —which ...

272 Chapter 10 of the neuron. Changes in the firing rate of primary sensory neurons affect the firing of second- and third-order ...

Sensory Physiology 273 neurons whose receptive fields are stimulated most strongly inhibit—via interneurons that pass “laterally ...

274 Chapter 10 Chemoreceptors that respond to chemical changes in the inter- nal environment are called interoceptors; those tha ...

Sensory Physiology 275 somatosensory cortex of the postcentral gyrus devoted to the tongue. Information is also sent to the pref ...

276 Chapter 10 impulses to the brain, where they are interpreted as the corre- sponding taste perception. Although all sweet and ...

Sensory Physiology 277 Up to 50 G-proteins may be associated with a single receptor protein. Dissociation of these G-proteins re ...