These notes have been provided by Muhammad Suhaib Naeem, a good friend and top contributor at Anatomy Spot. To download his notes click here. You will be taken to the download page. Click the download button and downloading will start automatically. READ THE FULL ARTICLE >>
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Development of The Midbrain
Mid brain develops from the midbrain vesicle Cavity becomes much small to form the cerebral aqueduct Basal plate forms Motor nuclei of the 3rd & 4th cranial nerves Red nuclei Substantia nigra Reticular formation The marginal zone of basal plates on each side enlarges to form basis pedunculi (The descending motor tracts are situated in that region – Cortico pontine, corticobulbar & corticospinal tracts) The 2 alar plates & the roof plate forms the Tectum The alar plate forms the sensory neurons...
Development of The Cerebellum
Dorsal view of the mesencephalon and rhombencephalon in an 8-week embryo. Similar view in a 4-month embryo It’s formed from the posterior part of the alar plate of the Metencephalon On each side, alar plates bend medially to form the rhombic lip As the lips enlarges, they project over the roof plate of the 4th ventricle & unite with each other to form the cerebellum At 12th week, vermis & 2 cerebellar hemispheres can be recognized Matrix cells situated close to the ventricle form neuroblasts & migrate to the c...
Development of the Pons
Transverse section through the caudal part of the metencephalon. Note the differentiation of the various motor and sensory nuclear areas in the basal and alar plates, respectively. It’s formed from the anterior part of the Metencephalon It has also cellular contributions from the alar part of the Myelencephalon Basal plate forms the motor nuclei of V, VI & VII cranial nerves Alar plate forms Sensory nucleus of V & VII Vestibular cochlear nuclei of VIII Pontine nuclei Axons of the pontine nuclei go ...
Development Of Spinal Nerves
Anterior end The medial group of motor neurons will leave the anterior surface of the spinal cord as the motor outflow The lateral group of neurons will leave the anterior surface of the spinal cord as the autonomic Preganglionic fibers; they form the lateral grey column (T1 – L2) – That is the sympathetic outflow The 2 outflows leave the anterior surface of the spinal cord & form the Ventral root of the spinal nerves Posterior end Neural crest cells migrate to a posterolateral position on either side of the developing spin...
Development of the Spinal Cord
The wall of the neural tube consists of a single layer of pesudostratified columnar epithelial cells, called matrix cells Matrix cells rapidly divide & produce neuroblasts Neuroblasts migrate peripherally to form the intermediate zone; it will form the grey matter of the spinal cord Intermediate zone forms 2 thickened areas, separated by sulcus limitans Anteriorly: Basal plate (producer motor cells of the anterior column) Posteriorly: Alar plate – Small (produce sensory cells of the posterior co...
Presentation On Bones Of Human Body
Posted on April 19, 2010 admin
To download the presentation click here. You will be taken to the download page. Click the download button to get the file. Click on save file when the new window opens. READ THE FULL ARTICLE >>
Presentation on Blood A Connective Tissue
Posted on April 19, 2010 admin
To download the presentation click here. You will be taken to the download page. Click the download button to get the file. Click on save file when the new window opens. READ THE FULL ARTICLE >>
How to Study Human Anatomy and Physiology For Students – Is it That Difficult?
Posted on April 1, 2010 admin
Organising the body in your human anatomy class means assigning matters in reasonable order. It can get rather complex when it gets to the human body. because you are not rather certain what to begin with. The typical tendency is to begin with the skeletal system.
This is a good option when you are prepared to get into the subject of the systems, but your not quite there nonetheless. You need to go backwards one step further. and learn what is the skeletal system made of. This is easy, its simply made of cells like the entire body is. Once you have accomplished your learning of cells. you will then be happy to move forward. READ THE FULL ARTICLE >>
Surgery Lectures On PowerPoint
Posted on March 28, 2010 admin
