Hooke‚ an English scientist‚ invented his own compound microscope and observed the cellular nature of the cork. The topic of cells was brought forth and from this moment‚ in 1674 Leeuwenhoek viewed microscope ’ animalcules’ and in 1838‚ Schleiden and Schwann produced the cell theory‚ stating that all living things are made of cells and cells are the basic unit of organisms. Moreover‚ the technological introduction of stains were developed and assisted scientists to efficiently see cells and their internal
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(3) Post anal tail General vertebrate chordate features:(1) Skull (2) vertebral column (3) Internal organs(multiple endocrine glands) (4) Internal endoskeleton‚ framework of cartilage or bone‚ (5) Neural crest-(gill arches/sensory ganglia/schwann cells/Adrenal gland). Vertebrate chordates: The Fish-General characteristics: Gills with one-way
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Nervous System Differences according to: Motor neurons Sensory neurons Autonomic neurons Function Transmits impulses from the CNS which consists of the brain and spinal cord to muscles and glands elsewhere in the body Transmits impulses inwards from the sense organs to the CNS Located within the CNS‚ they transmit the electrical impulses generated by the stimuli to other nerves Structure Have Dendrites‚ Cell Body‚ Myelin Sheath‚ Node of Ranvier and Synaptic Knobs. The cell body is
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plans for the camp were announced‚ many Germans protested the unlawful detention of political enemies but were quickly quieted when twenty prominent opponents of the camp were thrown into a prison camp themselves. In June 1933‚ Himmler appointed Theodor Eicke to design the concentration camp and to become its first commandant. Eicke divided Dachau into two separate areas: the prisoner’s camp and the command area. The
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Empire (Penguin Classics‚ 2000) Goodman‚ Martin‚ The Roman World (Routledge‚ 1997) Lendering‚ Jona‚ “The Senate”‚ Livius Articles on Ancient History (available from http://www.livius.org/se-sg/senate/senator.html‚ accessed on 7/02/2012) Mommsen‚ Theodor‚ Römische Geschichte Morey‚ William C.‚ Outlines of Roman History (American Book Company‚ 1907 available on: http://www.forumromanum.org/history/morey01.html accessed on 5/02/2012) Oxford English Dictionary‚ Third Edition (2010) Scullard‚ H‚ From
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the ________ system controls brain and spinal cord central The ________ nervous system controls the skeletal muscles. autonomic parasympathetic afferent sympathetic somatic somatic The part of the peripheral nervous system that carries sensory information to the CNS is designated autonomic. motor. afferent. efferent. somatic. afferent The efferent division of the peripheral nervous system innervates: glandular cells heart muscle cells smooth muscle cells skeletal muscle cells All of
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Afferent Neurons=sensory‚ conduct impulses TO the brain b. Efferent Neurons=motor‚ conduct impulses AWAY from the brain c. Interneurons 3. Types of Cells in the CNS: a. Astrocytes b. Microglia c. Oligodendrocytes-form myelin sheath of CNS d. Schwann Cells-form myelin sheath of PNS 4. White matter vs. Gray matter 5. Myelin and its function 6. Nodes of Ranvier 7. Ganglion-clump of nerve cell bodies in the nerve tract NERVE IMPULSE 1. Self-Propagating 2. Action Potential a. Potassium (K+)
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Seuss’ real name is Theodor Seuss Geisel. He was born in march 2nd‚ 1904‚ in Springfield‚ Massachusetts. In 1925‚ Seuss publishes his first cartoon in Jack-O- lantern (a humour magazine) It was the first time he uses “Dr. Seuss” as his pen name. He then attended Oxford in 1926
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later instrumental in mentoring and then sending Agnes Elizabeth Jones and other Nightingale Probationers to Liverpool Workhouse Infirmary. In 1850‚ she visited the Lutheran religious community at KaiserswerthamRhein where she observed Pastor Theodor Fliedner and the deaconesses working for the sick and the deprived. She regarded the experience as a turning point in her life‚ and issued her findings anonymously in 1851; The Institutionof Kaiserswerth on the Rhine‚ for the Practical Training ofDeaconesses
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The diameter‚ number of axons in the sciatic nerve‚ speed of transmission and degree of myelination can all have an effect on the sciatic nerve and therefore the peak contractile force of B. Marinus. The diameter of the axon in the sciatic nerve would impact how fast the action potential is conceived down the axon to the synaptic cleft and muscle (Firmin‚ L. 2014). If one of the toads had a smaller axon diameter it would allow for resistance to movement to occur due to friction. The diameter of the
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