sensories inter Astrosiete ependimale selle Mikroglia Oligo motor sensory inter

Sensories inter astrosiete ependimale selle mikroglia

This preview shows page 81 - 84 out of 117 pages.

sensories inter Astrosiete ependimale selle Mikroglia Oligo- motor sensory inter dendrosiete asterocytes ependymal microglia oligo- cells dendrocytes Diagnostiese eienskappe Diagnostic characteristics eenvoudige tekening simple drawing aanpassings en funksies adaptations and functions plek van voorkoms locality geassosieerde siektes associated disorders
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Study unit 5 74 Answer the following questions. 1. Classify neurons on the basis of their: 1.1 Structure 1.2 Function 2. Describe and illustrate with the aid of diagrams the structure, occurrence and functions of a multipolar neuron. 3. Describe the types of neuroglia (astrocytes, microglia, oligodendrocytes and ependymal cells) and critically evaluate their integral role as support tissues of neurons and why neuroglia outnumbers neurons by 50 to one. 4. Distinguish between resting and action potential and discuss the transmission of nerve impulses through the propagation of action potentials. 5. Describe the transmission of impulses across a synapse and synaptic interaction. 6. Briefly explain the symptoms of multiple sclerosis (MS) and polio in the light of your knowledge about neurons and muscles. Control your answers using the listed sources. Report any problems that you experience at the contact sessions. Practical/ Microscope work 11 Study available permanent slides and micrographs of nervous tissue. Record your observations by making labelled drawings thereof. Keep this in your practical portfolio. Assignment/ Research / Integration with teaching practice 3.2 (20) 1. Cloning is used to make tissues using a patient’s own body cells. This tissue is then identical to the patient’s tissue. Explain what cloning is, what promises it holds for conditions where tissue replacement is needed and what ethical issues there are around cloning. (18) 2. Study the Life Sciences curriculum in the FET phase. Where does the work studied in this unit fit in? (2)
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Study unit 5 75 Revision 1. The three types of muscular tissue display certain similarities and differences. Make a in the cells where each of the characteristics apply. Muscular tissue Characteristic Skeleton Cardiac Smooth 1.1 Voluntary 1.2 Involuntary 1.3 Striated appearance 1.4 Single nucleus in each cell 1.5 Multinuclear 1.6 Affixed to bones of skeleton 1.7 Allows eyes to turn in eye sockets 1.8 Found in the walls of the stomach, uterus and arteries 1.9 Contains spindle-shaped cells 1.10 Contains cylindrical cells with branching ends 1.11 Contains long cylindrical cells that do not branch out 1.12 Contains intercalary disc 1.13 Allows body parts, such as arms and legs, to move 1.14 Alters internal volume of an organ when it contracts 1.15 Tissue from which the pump of the blood-circulatory systems consist of 2. Twelve types of tissues (A to L) are illustrated in the following figure 5.6. 2.1 Identify each type of tissue by writing down its correct name next to its symbol.
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  • Spring '16
  • Ambani Mudau
  • Phylum, Windelspecht

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