* Sustain neuron both physically and metabolically * Includes * Microglia – scavengers; cell that removes debris and cellular product from damage cells * Oligodendrocytes – cells in the CNS that produce MYELIN SHEAT * Schwann cells – cell in PNS that produce MYELIN SHEAT * Ependymal cells – cells responsible for CSF * Astrocytes – cell with finger like projections‚ they surrounds blood vessels; BLOOD BRAIN BARRIER * Satellite cells – like astrocyte;
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CELL ULTRASTRUCTURE CELL ULTRASTRUCTURE Cells are the smallest functional units of the body‚ (Waugh‚ A. and Grant‚ A.2010). Most cells are microscopic. The largest cell in the body is the female ovum. The erythrocyte is the smallest cell. The longest cell is the neuron. Cells group together to form tissues‚ each of which has specialised function. Different tissues group together to form organs. Organs are group together to form organ systems‚ each of which performs a particular function that
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Dr. Suess The beloved children’s book writer‚ Theodor Geisel Seuss‚ not only affected his generation with his fun-loving books‚ but his writings are still loved by children‚ and even parents‚ today. Theodor Geisel Seuss was born March 2‚ 1904‚ in Springfield‚ Massachusetts. His parents were Theodor Robert Geisel and Henrietta Seuss Geisel. Theodor and Dr. Seuss had a different father son relationship than many do today. His father was interested in athletics but more importantly‚ marksmanship.
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What is anterograde transport? 13. What is astrocytes? 14. What is axonal transport or axoplasmic flow? 1. What are schwann cells? envelope nerve fibers in PNS. produce a myelin sheath multipolar‚ bipolar‚ unipolar and anaxonic oligodendrocytes‚ ependyal cells‚ microglia and astocytes Fast anterograde and fast retrograde. Occurs at a rate of 20 to 400 mm/day Schwann cells and satellite cells. masses of rapidly dividing cells. meninges (protective membrane of CNS)‚ Metastasis from nonneuronal
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The Political Cartoon I chose‚ titled “Cages Cost Money” by Dr. Theodor Geisel‚ or more notably known as “Dr. Suess”‚ is an advertisement directed to the American population‚ trying to convince them to purchase “War Bonds and Stamps.” I chose this cartoon due mostly to the fact that it is a non-violent‚ non-racist depiction of a way to convince the people of your country to provide goods for soldiers fighting. (ie: Nationalism) Most other Political Cartoons relating to other countries on opposing
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sedentary life style. This life style along with the progression of the Leprosy infection will weaken Sannu’s muscles. A feature common to all forms of Leprosy is nerve infection. Nerve damage appears to result from the multiplication of bacilli within Schwann cells and damage to the perineurium. Most of the deformities occurring from Leprosy are in fact due to trauma or a secondary infection. In a Leprosy infection one of the first symptoms are anesthesia to heat and cold. Leprosy affects the peripheral
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The endocrine system works with the nervous system to maintain homeostasis. The endocrine system secretes hormones in the human body‚ which are produced in endocrine glands and are released into the bloodstream to travel to the its specific target cell‚ tissue‚ or organ. Exocrine glands produce chemicals that are discharged into the surroundings. Hormones can either produce short-lived responses or long-term responses. An example of a short-lived response is when adrenaline (epinephrine)causes the
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L. ) E. (1835) Felix Dujardin –discovered an internal substance that is colloidal in structure he called it the Sarcode or cytoplasm. F. (1838) Matthias Schleiden (sa plants) Theodore Schwann ( sa animals)- Matthias Schleiden stated that all plants are composed of cell. After a year‚ Schwann concluded that all animals are made up of cells G. (1858)- Rudolph Virchow- stated that all cells come from pre-existing cells III. Cell theory A. All living things are made up of cells
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Noon Prayer at Harvest Theodor Schuz painting of Noon Prayer at harvest reminded me of Little House on the Prairie‚ by the time frame the painting depicts to me that it’s from and by the way the family is dressed. This could simply be a painting‚ of a still image‚ of Theodor’s actual family. I get sort of a religious vibe from this piece. The woman and her daughters are dressed in modest garments with skirts below their knees which is the tradition dress. On the bottom right of the painting
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It is through the many illustration and narratives of the native people‚ that has enabled the Europeans to marvel over the indigenous people amongst their natural settings within the New world. Over the course of time‚ paintings done by Europeans artist focus on several different elements when drawing the Native American women. It is also through the painting that we identify the key difference and similarities between the two cultures. Individuals such as John White‚ have provided a very detailed
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