. A text-book in general physiology and anatomy. Physiology, Comparative; Anatomy. THE FROG S BEAIN 387 The frog's brain.— The brain may be divided into three parts, called respectively, the forebrain, midbrain, and hind- brain. From these parts of the brain are given off ten pairs of nerves called cranial nerves. These nerves are made up of fibers called nerve fibers. Those cranial nerves whose fibers bring impulses or messages to the brain are called afferent or sensory nerves. Those whose fibers con- m. RSt, uv Pig. 179 — Frog brain; /, top view; ^, olfactory nerves; .8, olfactory lobes; C,
. A text-book in general physiology and anatomy. Physiology, Comparative; Anatomy. THE FROG S BEAIN 387 The frog's brain.— The brain may be divided into three parts, called respectively, the forebrain, midbrain, and hind- brain. From these parts of the brain are given off ten pairs of nerves called cranial nerves. These nerves are made up of fibers called nerve fibers. Those cranial nerves whose fibers bring impulses or messages to the brain are called afferent or sensory nerves. Those whose fibers con- m. RSt, uv Pig. 179 — Frog brain; /, top view; ^, olfactory nerves; .8, olfactory lobes; C, Z>. forebrain; E, midbrain; -F, optic lobes; G, bindbrain; H^ medulla; /, cord; J^ K, L, M, N, nerves; //, ventral view; ///, lateral view. vey impulses from the brain are called efferent or motor nerves. Several of these nerves contain both efferent and afferent fibers, and such are called mixed Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Eddy, Walter Hollis, b. 1877. New York, Cincinnati [etc. ] American book Co
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