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- Nervous system (3163 bytes)
3: ...|toxins]], typically causing [[paralysis]] and/or death.
12: ...ay of [[neurotransmitter]] [[diffusion]] across [[synapse]]s.
15: ...ys]] and [[motor pathways]], the latter being divided into the [[somatic nervous system|somatic (volun...
19: ...pathetic nervous system, on the other hand, is evident when a person is resting and feels relaxed, and... - Brain (22060 bytes)
4: ...[Image:Anatomy06-brain.jpg|thumb|250px|Image provided by [http://classroomclipart.com Classroom Clip A...
5: ...lled [[neurotransmitter]]s across gaps known as [[synapse]]s. Small invertebrates such as [[insect]]s may h...
7: ==A smart device==
11: ...the volume of the brain compact enough to fit inside the skull.
14: ...vessel]]s in the brain, is another major cause of death and brain damage. - Human brain (15406 bytes)
9: ...synaptic]] connections, making it one of the most densely connected network systems among natural and ...
15: ...arated by a prominent [[central fissure]]. A well-developed [[cerebellum]] is visible at the back of t...
21: ...weighs 1,500 g in air weighs only 50 g when suspended in CSF. (Livingston, 1965). Fluid movement withi...
23: ...pressure can result in permanent brain injury and death.
25: ...vic openings to accommodate the birth of large-headed children, but the larger this opening, the more ... - Eye (21834 bytes)
1: ...ight or dark. More complex eyes are used to provide the [[sense]] of [[visual perception|vision]]. Ma...
9: ...es grow outward from brain cells during embryonic development, while mollusk eyes grow inward from ski...
11: ...ranged hexagonally, and which can give a full 360 degree field of vision. Compound eyes are very sensi...
16: Jumping spiders have simple eyes that are so large, supported b...
18: ...ght|thumb|300px|Eye of a Komodo Dragon.Image provided by [http://classroomclipart.com Classroom Clip A... - Retina (13061 bytes)
5: ...ant part in [[visual perception]]. In [[embryonal development]], the retina and the optic nerve origin...
9: ...s in the retina have been used for [[biometric]] identification.
12: ... the peripheral retina. The edge of the retina is defined by the [[ora serrata]]. The length from one ...
14: ...heir axons. This spatiotemporal pattern of spikes determines the raw input from the eyes to the brain....
16: ...ive layers, three of [[nerve]] cells and two of [[synapse]]s. The optic nerve carries the [[ganglion cell]]... - Nerve (2497 bytes)
1: ...le of '''nerve fibers''' or [[axon]]s, which includes the [[glia]] that ensheath the axons in [[neuron...
5: ...to the adjacent neuron through a gap called the [[synapse]].
10: ...o the belly) horn. The [[cranial nerve]]s do not synapse in the spinal cord; they connect to the [[central...
13: ...rs because when a nerve is damaged, signalling is defective from all parts of the area which the nerve... - Medulla oblongata (2593 bytes)
1: ...-brain.jpg|thumb||200px|right|Brain Clip Art provided by [http://classroomclipart.com Classroom Clip A...
3: ...]]). The 'opening' referred to is on the dorsal side of the medulla, and forms part of the fourth [[ve...
19: ...a. A blockage (such as in a [[cerebrovascular accident|stroke]]) will injure the [[pyramidal tract]], ...
21: ... medulla, where the main sensory tracts run and [[synapse]]. (As the name implies, it also supplies some of... - Cerebellum (7954 bytes)
1: ...-brain.jpg|thumb||200px|right|Brain Clip Art provided by [http://classroomclipart.com Classroom Clip A...
2: ...timing and amplitude of learned movements are encoded by the cerebellum.
12: ...fish to mice to humans. This has been taken as evidence that it performs a common function.
15: ...up into two parts: the cerebellar cortex and the deep cerebellar nuclei.
22: ...lls and the basket cells. It also contains the [[dendritic arbor]] of Purkinje cells and [[parallel f... - Vestibulocochlear nerve (2871 bytes)
1: ...ge:Ear.jpg|thumb|A left [[human]] ear. Image provided by [http://classroomclipart.com Classroom Clip A...
6: ...thalamus]] on the same side and on the opposite side. Axons of medial geniculate neucleus cells projec...
10: Axons of the vestibular nerve synapse in the vestibular nucleus on the lateral floor an...
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