the trigeminal. Which major division of the 5th cranial nerve supplies skin of the temporal region? The mandibular division mainly (with a small contribution from the maxillary division anteriorly). How are the muscles of the scalp innervated? By the VIIth cranial nerve (facial nerve). Are there lymphatics in the scalp? Yes. Where are lymph nodes found close to the scalp? What are the names of the various groups? Around its lower limits, laterally and posteriorly. Preauricular, mastoid and occipital groups. Haemorrhage from the veins piercing the cranial vault (from, for instance, moulding of the skull during birth) is limited to the extent of a single cranial bone. Why? Because the periosteum is bound down tightly at the sutures and this type of bleeding occurs between the periosteum and the particular bone. Gashes to the scalp bleed freely. Why? How would you control the bleeding? Because the arteries are large and are tethered in the dense connective tissue of the scalp. Moderate pressure where the arteries enter the scalp. Infections of sebaceous glands in the scalp are very painful. Why? Because the pus is unable to spread far in the subcutaneous tissue and pressure builds up. Cuts in scalp in a coronal direction gape; those in a sagittal direction don't. Why? Because the tension in the galea is from front to back because of the way the muscles are arranged. The Face What is the posterior limit of the face? The coronal plane immediately behind the rami of the mandible and