ICA is one of two terminal branches of common carotid artery. Bifurcation occurs between C3-C5 vertebrae or hyoid-thyroid cartilage. Carotid bulb and body located just above bifurcation
Axial skeleton consists of 80 bones in humans. Includes skull (28 bones), vertebral column (26), rib cage (25), and hyoid bone. Connects pelvis to body via shoulder girdles and pelvis
Triangular hole in base of skull between sphenoid, temporal, and occipital bones. Located anteromedially to carotid canal. Fills with cartilage after birth. Junction point of three skull sutures
The sphenoid bone is an unpaired bone located in the middle of the skull. It resembles a butterfly or bat with wings, hence the name "sphenoid". The bone consists of a body containing the sella turcica and paired paranasal sinuses. It has two greater wings and two lesser wings, with pterygoid processes
Two quadrilateral bones forming sides and roof of neurocranium. Located near midline of skull, posterior end. Each bone has two surfaces, four borders, and four angles
Headphone dents form when the weight presses into hair and scalp. They are completely normal and harmless. Studies show it takes 300 lb force to change skull shape