18191159
| Pregunta | Respuesta |
| The Spinal cord terminates at L1/2 vertebrae called the ...... | Conus Medullaris (The tapered lower end of the spinal cord) |
| After L1/2 Vertebral level, the spinal cord splays into..... | Many nerve fibres called Cauda Equina |
| Name the different regions of the spinal cord | - Cervical x8 - Thoracic X12 - Lumber X5 - Sacral X5 - Coccyx X1-2 |
| Locate the Dorsal/posterior horns, Anterior/ ventral horns, lateral horns | lateral horns not on diagram but are located on both the lateral sides between the dorsal and ventral horns/ grey matter |
| By cutting this image horizontally, what is different between the posterior and anterior side of the spinal cord in regards to the grey matter? | The Posterior/ above line carries sensory information The Anterior/ below line carries motor information |
| What is the purpose of Lateral horns? | It is where sympathetic and parasympathetic nervous system information runs (automatic). Sympathetic in = T1, L2 - L3 Parasympathetic in = S2 - S3 |
| What is different about the white matter when comparing the cervical part of the SC and the Sacral Part of the SC? | There are less white matter tracts as they go down the spinal cord. |
| Cranial Nerves (3-12) & ....... ......... are part of the peripheral Nervous system | Spinal Nerves |
| In the spinal cord, the first .... Cervical nerves lie above the corresponding vertebrae. All other nerves lie below the corresponding vertebrae. | 7 |
| Spinal Nerve: Is a mixture of ... | Sensory and motor Axons from one spinal cord segment. |
| In the Spinal Cord the dorsal and ......... .......... combine to form the ........ ......... and then split apart again to then be called the Dorsal and ......... ......... | In the Spinal Cord the Dorsal and Ventral roots combine to form the spinal nerve and then split apart again to then be called the Dorsal and Ventral Rami |
| The Vental Ramus contains and supplies the... | contains sensory & motor axons which innervated the trunk and Limbs and overlying skin. |
| What is the big lump on the Dorsal root? (the dorsal root ganglia), and why is there not one on the Ventral root? | This is where cell bodies live for sensory information. There is not one on the ventral root as the cell bodies are squished into the ventral horn (his is why it is fatter there) |
| The Dorsal Ramus contains and supplies the... | The Dorsal Ramus supplies deeps back muscles and overlying skin |
| Define Dermatomes | The area of skin innervated by a single spinal nerve. |
| Define Myotomes | The group of muscles innervated by a single spinal nerve |
| What is a segmental nerve lesion and where can it occur? | A segmental nerve lesion only effects the sensation in the dermatome and the muscle power in the myotome at that level. Can occur in = The horn, nerve root or at the spinal nerve |
| What is a Spinal vertical Tract lesion and where can it occur? | The lesion is in the spinal cord vertical tracts (x). It impacts all nerves below the level of the lesion. |
| where is the spinal cord located and where do the spinal nerves come out of? | - Spinal Canal/ vertebral canal - The intervertebral canal/ foramen |
| Peripheral neve lesions cause? | Altered or lost sensation in a peripheral nerve distribution. Decreased or lost muscle power in a peripheral nerve distribution. |
| what Spinal cord injury is usually caused by motor vehicle accidents, sports injuries, falls or penetrating wounds? | Traumatic Spinal Cord injury |
| Paralysis, areflexia, loss of control of bladder/ bowls, fluctuation of blood pressure resulting in hypertension are all observed with someone going through...... after a traumatic spinal cord injury. | Spinal Shock |
| Spinal cord injuries can be classified as complete or incomplete injuries. what is the difference? | Complete = No function or feeling below the injury. Incomplete = Some function and/or feeling below the injury. |
| paraplegia = Tetraplegia/ quadriplegia = | Paraplegia = is an impairment in motor or sensory function of the lower extremities. Tetraplegia/ quadriplegia = the partial or total loss of use of all four limbs and torso |
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