3/10/2016 The doctor who treats bones, is called an…..how many bones in the human adult body? OBJ: understand osteoporosis.

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Presentation transcript:

3/10/2016 The doctor who treats bones, is called an…..how many bones in the human adult body? OBJ: understand osteoporosis

3/10/2016

 Globally, the brain is divided into four anatomic parts: the cerebrum, the diencephalon,(thalamus- hypothalamus) the cerebellum, and the brainstem. The cerebrum is the convoluted portion of the brain-aka cerebral cortex, grey matter, etc., more on this latter.  3/10/2016

Central Nervous System-Spinal Cord and Spine The spinal cord-or cord- is considerably less complex than the brain. It is, in fact, an extension of the brain, being continuous with the medulla oblongata as it passes out of the cranium through the foramen magnum. Like the spine itself the cord has five loose divisions: cervical, thoracic,lumbar, sacral and coccygeal. The divisions are loose because there is no anatomic change from one area to another, and the cord divisions do not correlate with the spine divisions; this is due to the simple fact that the spinal column, ie the bones, ligaments, discs, muscles, etc, grows faster and longer than does the cord. If you think about that fact you will realize that as we develop- from about the fourth week post- conception to when the spinal column finishes it's growth-late teens- the cord "ascends" within the spinal canal, ultimately terminating in the high lumbar spine.This causes some of the spinal nerves- which arise from the spinal cord- to undergo some radical changes of their own-more on that latter. Here's a diagram from an excellent spinal cord injury website, Apparalyzed.com; I would recommend that you give their website a click.

3/10/2016

Central Nervous System-Spinal Cord and Spine The spinal cord-or cord- is considerably less complex than the brain. It is, in fact, an extension of the brain, being continuous with the medulla oblongata as it passes out of the cranium through the foramen magnum. Like the spine itself the cord has five loose divisions: cervical, thoracic,lumbar, sacral and coccygeal. The divisions are loose because there is no anatomic change from one area to another, and the cord divisions do not correlate with the spine divisions; this is due to the simple fact that the spinal column, ie the bones, ligaments, discs, muscles, etc, grows faster and longer than does the cord. If you think about that fact you will realize that as we develop- from about the fourth week post- conception to when the spinal column finishes it's growth-late teens- the cord "ascends" within the spinal canal, ultimately terminating in the high lumbar spine.This causes some of the spinal nerves- which arise from the spinal cord- to undergo some radical changes of their own-more on that latter. Here's a diagram from an excellent spinal cord injury website, Apparalyzed.com; I would recommend that you give their website a click.

3/10/2016 Central Nervous System-Spinal Cord and Spine The spinal cord-or cord- is considerably less complex than the brain. It is, in fact, an extension of the brain, being continuous with the medulla oblongata as it passes out of the cranium through the foramen magnum. Like the spine itself the cord has five loose divisions: cervical, thoracic,lumbar, sacral and coccygeal. The divisions are loose because there is no anatomic change from one area to another, and the cord divisions do not correlate with the spine divisions; this is due to the simple fact that the spinal column, ie the bones, ligaments, discs, muscles, etc, grows faster and longer than does the cord. If you think about that fact you will realize that as we develop- from about the fourth week post- conception to when the spinal column finishes it's growth-late teens- the cord "ascends" within the spinal canal, ultimately terminating in the high lumbar spine.This causes some of the spinal nerves- which arise from the spinal cord- to undergo some radical changes of their own-more on that latter. Here's a diagram from an excellent spinal cord injury website, Apparalyzed.com; I would recommend that you give their website a click.

3/10/2016 Central Nervous System-Spinal Cord and Spine The spinal cord-or cord- is considerably less complex than the brain. It is, in fact, an extension of the brain, being continuous with the medulla oblongata as it passes out of the cranium through the foramen magnum. Like the spine itself the cord has five loose divisions: cervical, thoracic,lumbar, sacral and coccygeal. The divisions are loose because there is no anatomic change from one area to another, and the cord divisions do not correlate with the spine divisions; this is due to the simple fact that the spinal column, ie the bones, ligaments, discs, muscles, etc, grows faster and longer than does the cord. If you think about that fact you will realize that as we develop- from about the fourth week post- conception to when the spinal column finishes it's growth-late teens- the cord "ascends" within the spinal canal, ultimately terminating in the high lumbar spine.This causes some of the spinal nerves- which arise from the spinal cord- to undergo some radical changes of their own-more on that latter. Here's a diagram from an excellent spinal cord injury website, Apparalyzed.com; I would recommend that you give their website a click.