File:Guide leaflet (1901) (14581752368).jpg

Identifier: scienceguide7692amer (find matches)
Title: Guide leaflet
Year: 1901 (1900s)
Authors: American Museum of Natural History
Subjects: American Museum of Natural History Natural history
Publisher: New York : The Museum
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: IMLS / LSTA / METRO

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Text Appearing Before Image:
Fig. 29. IN THi SHARK JUL. NOSL BRAIN. lAR BRAIN AND CEREBELLUAl DOMINATE THE MIDBRAIN, WHICH IN THE FISH IS THE MAIN CENTER OF CONTROL (58)
Text Appearing After Image:
Fig. 30. IN AIAN THE CENTER OF CONTROL HAS AIOX^ED UPWARD INTOTHE CEREBRAL CORTEX, WHICH DOAIINATES ALL THE PARTS BELOW IT (59) INTRODUCTION TO HUMAN ANATOMY and are supplied l)\- the cutaneous nerves. The latter lead back to thedorsal roots of the spinal nerves and thence up the spinal cord to themedulla oblongata of the brain-stem, where the centers for these sensesare located. The muscles, tendons and joints of the bodx are also supplied w ith endorgans that are sensitive to pressure. .Movements of one part on another,or even the arrest of movements as in fixed postures, stimulate the endorgans in the tendons and joints and thus inform the brain of the positionand state of tension of each part. These receptors are innervated bv branchesof the spinal nerves. Other receptors, called enteroceptors, located in the viscera and in themuscular parts of the heart and blood-vessels, appear to be sensitive to thepressure of gases and liquids, w hile still other receptors in the intestinesmay

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