Summary Guyton and Hall physiology chapter 47 summery .

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Chapter 47 (trans): Sensory receptors, Neuronal circuits for
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Physiology ( Davao Medical School Foundation )




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CHAPTER 47: SENSORY RECEPTORS, NEURONAL CIRCUITS FOR PROCESSING INFORMATION




A. MECHANORECEPTORS E. CHEMORECEPTORS
1A.) SKIN TACTILE SENSIBILITIES  Taste: Receptors for taste
(EPIDERMIS AND DERMIS) buds
 Free Nerve Endings
 Expanded Tip Endings,  Smell: Receptors for
Merkel’s discs plus several olfactory epith.
other variants
 Spray endings  Arterial Oxygen: Receptors
 Ruffini’s endings of aortic and carotid bodies
 Encapsulated endings,
Meissner’s corpuscles,  Osmolality: Neurons in or
Krause’s corpuscles near supraoptic nuclei
 Hair end-organs
 Blood CO2: Receptors in or
2A.) DEEP TISSUE SENSIBILITIES on surface of medulla and in
 Free nerve endings aortic and carotid bodies
 Expanded tip endings
 Spray endings, Ruffini’s  Blood glucose, amino acids,
endings fatty acids: Receptors in
 Encapsulated endings, hypothalamus
Pacinian Corpuscles, Plus a
few other variants
 Muscle endings, Muscle
spindles, Golgi tendon
receptors

3A.) HEARING
 Sound receptors of cochlea

4A.) EQUILIBRIUM
 Vestibular receptors

5A.) ARTERIAL PRESSURE
 Baroreceptors of carotid
sinuses and aorta

B. THERMORECEPTORS: Cold and warm
receptors

C. NOCICEPTORS (Pain): Free nerve endings

D. ELECTROMAGNETIC RECEPTORS
(Vision): Rods and Cone




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