Mid-sagittal plane cross section of the human head!!
Noice the precision of the slice. The skull has been sliced in half down the centre, revealing details of the internal structures. These include the delicate bones and spaces of the paranasal sinuses (around the nose and eyes, centre right), as well as the fused bones of the cranium that encase and protect the brain. The nasal and upper maxilla or jaw bones are shown fused to the cranium to form the facial skeleton. The lower jaw bone (mandible, lower right), is attached at flexible joints, allowing it to move. Also notice the epiglottis which is the leaf-shaped flap of cartilage located behind the tongue and attached to the entrance of the larynx. It’s function is to seal off the trachea during eating, so that food is not accidentally inhaled.
Hemodynamic stimuli&nonhemodynamic stimuli
