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The blood supply to the nervous system

The blood supply to the nervous system is crucial for the proper functioning of the brain and spinal cord. Here is a complete tutorial on the blood supply to the nervous system: **Arteries** The brain and spinal cord are supplied by two sets of arteries: the vertebral arteries and the carotid arteries. 1. **Vertebral Arteries**: These arteries arise from the subclavian arteries and enter the transverse foramina of the cervical vertebrae. They then pass through the foramen magnum to enter the cranial cavity and join to form the basilar artery. The vertebral arteries supply the brainstem, cerebellum, and the posterior part of the brain. 2. **Carotid Arteries**: These arteries arise from the common carotid arteries and enter the cranial cavity through the carotid canal. They then branch into the internal carotid artery and the external carotid artery. The internal carotid artery supplies the anterior part of the brain, including the cerebral hemispheres. **Veins** The brain and spinal cord

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