Diploic veins

### Course within the cancellous bone - these are the frontal veins, anterior temporal veins, the posterior temporal veins, and the occipital veins. *Emissary veins* may also pierce the skull and connect the veins of the scalp with diploic veins and internal venous sinuses. [problem —> these communications may provide route for the spread of infection; ex. Encephalitis —> brain starts to swell]

## Step1: Identify the veins within the skull### Diploic veins are a set of veins that course within the cancellous bone of the skull. They include the frontal veins, anterior temporal veins, posterior temporal veins, and the occipital veins.## Step2: Recognize the role of emissary veins### Emissary veins are veins that may pierce the skull and connect the veins of the scalp with the diploic veins and internal venous sinuses.## Step3: Understand the potential risks### The communications between the emissary veins and the diploic veins can potentially provide a route for the spread of infection, such as encephalitis, which can lead to brain swelling.