'Spinal cord cross section' presentation slideshows

Chapter 48

Chapter 48. Nervous Systems. Overview: Command and Control Center The human brain Contains an estimated 100 billion nerve cells, or neurons Each neuron May communicate with thousands of other neurons. Figure 48.1. Functional magnetic resonance imaging

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CRANIAL NERVES

CRANIAL NERVES. This section is on every type of board exam. The spinal nerves comes out of the spine, and the cranial nerves come out of the brain directly. There are 12 pairs. They are numbered with Roman numerals. . The 12 Pairs of Cranial Nerves. Figure 14.8. Nerves vs. Tracts.

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Chapter 48

Chapter 48. Nervous Systems. Nerve net. Figure 48.2a. (a) Hydra (cnidarian). Organization of Nervous Systems. The simplest animals with nervous systems, the cnidarians Have neurons arranged in nerve nets. Eyespot. Brain. Nerve cord. Transverse nerve. Figure 48.2c.

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Chapter 48: Nervous Systems

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Figure 49.1

Figure 49.1. Planarian (flatworm). (b). Sea star (echinoderm). (c). (h). Salamander (vertebrate). Eyespot. Brain. Brain. Radial nerve. Nerve cords. Ventral nerve cord. Nerve ring. Transverse nerve. Nerve net. Figure 49.2. Segmental ganglia. (a) Hydra (cnidarian).

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Nervous System II

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