THE NERVOUS SYSTEM - PART 1..... continued

The Nervous Tissue - Introduction to the Total Complex of the Nervous System: Introduction to the total complex nervous system. It shows the occurrence of typical nerve cells in the human nervous system, the structure of the neuron, the composition of a nerve, motor end plates, glia cells etc. - Human nervous system, entire view - Sagittal section of human cerebellum - Spinal ganglion, t.s. - Spinal cord of cat, t.s. silver stained - Grey matter of spinal cord, t.s. showing nerve cell bodies - White matter of spinal cord, t.s. showing nerve fibres - Motor nerve cell from spinal cord. - Purkinje cells from human cerebellum - Pyramidal cells from cortex of human cerebrum - Pseudounipolar neuron (T-cell) from spinal ganglion - Bipolar neurons in the retina of the eye, diagram - Various shapes of human neurons, 5 figures - Nerve cell showing neurofibrils - Nissl substance in neurons from the spinal ganglion - Diagram of a neuron - Various neurons from human nervous system, 4 figures - Human sciatic nerve, t.s., low magnification - Bundle from sciatic nerve, t.s., medium magnification - Nerve fibres, t.s., high magnification, axons and medullary sheaths - Nerve fibres, l.s. high magnification shows the Ranvier’s nodes - Structure of myelinated nerve fibre, diagram, 2 figures - Neuromuscular junction, motor end plate - Motor end plates, diagram, 2 figures - Glial cells from brain

The Nervous Systems of the Invertebrates: The study of the evolution of the nervous system beginning with primitive animals is necessary for a more profound understanding of the human nervous system. The series shows the net-like nervous system of the coelenterates, the ropeladder- like systems of the arthropods, and the nervous systems of molluscs and echinoderms; progressive concentration and differentiation; structural elements as neuron, ganglion, centres, reflex-arcs, automatisms, etc. - Reactions of single cells to stimuli: pore-cell of a sponge, nematocysts - The nervous system of Hydra - Reaction of Hydra to stimuli. Type of reaction depending upon strength of stimulus - The nervous system of a jellyfish (Scyphozoa) - The nervous system of Planaria (Platyhelminthes) - The nervous system of a roundworm (Nematoda) - The evolution of the nervous system in worms - The nervous system of the earthworm - Reflex arcs in the earth worm. Corresponding nervous connections between sensory and muscular cells - Reactions of the earthworm to stimuli - The nervous system of insects - Concentration of ganglia in insects - Development of the nervous system of a beetle, larval instars, pupa, and beetle - Brain of a worker honey-bee, structure. Forebrain with optic lobes, mid- and hindbrain - Frontal section of an insect brain, diagram - Longitudinal section through the head of a locust - Head of a worker honey-bee, t.s.. Midbrain, optic lobes, compound eyes - Unisegmental reflex arcs in insects. Connections of sensory and motor cells - Intersegmental reflexes in insects. Connections between sensory and motor cells and brain centres - Antenna cleaning reflex of the cricket. Complex reflex action involving a chain of linked reflexes - The nervous system in arthropods: lobster, crab, spider, scorpion - The nervous system of Chiton. Nervous ring surrounding oesophagus - The nervous system of a freshwater mussel. Cerebral, pedal and visceral ganglion - The nervous system of a freshwater snail, lateral view. Concentration of the ganglia towards the head - The nervous system of a freshwater snail, dorsal view - The nervous system of a terrestrial snail (Helix pomatia). Advanced concentration of the ganglia in the head. - The nervous system of a cuttlefish - The brain of the cuttlefish. Consisting of three pairs of ganglia - The nervous system of a starfish - General structure of echinoderms (starfish, sea urchin, sea cucumber)

The Nervous System of the Vertebrates: The central idea of the series is the evolution of the nervous system from primitive forms to complicated ones. It shows the progressive differentiation of the brain, the construction of its parts in the different classes of vertebrates and their relation to each other. The purpose of the series is to render the human nervous system more understandable. - The nervous system of Branchiostoma (Amphioxus), frog, and human - Embryonic development of the central nervous system of Branchiostoma (Amphioxus) - Ditto. of frog, from the side and from above. Closing of neural groove to neural tube - Ditto. of frog, corresponding transverse sections - Ditto. in humans - Development of the neural tube in humans - Development of the neural tube into the brain, frontal sections - Mammalian embryo. Formation of the central nervous system and other organs - The spinal cord of Branchiostoma, lamprey, and bony fish; t.s. showing differentiation of grey and white matter - Spinal cord of a salamander larva, t.s. with notochord - Spinal cord of a cow, t.s. - Comparison of the masses of brain and spinal cord in Branchiostoma, frog, rabbit, cat, ape, human - Brains of vertebrates (shark, bony fish, amphibian, reptile, bird, mammal), dorsal view - Brains of vertebrates, corresponding sagittal sections. Increase of the size of the forebrain, variation of the cerebellum depending upon the mobility of the animal - Shift of the optic pathways to the endbrain. Development of the thalamus into a relay station - Formation of the neopallium from concentric growth rings - Pattern of mammalian cerebral convolutions, phylogenetic tree - Cranial nerves of frog and sheep, ventral view - Human brain, ventral view with cranial nerves - Innervation of body regions by sensory and motor cranial nerves - Proportion between brain and head in vertebrates. Increase of relative size of the brain from shark to frog, reptile, bird, cat - Proportion between brain and head in mammals. Ditto dog, chimpanzee, man.