Dorsal: In humans, toward the back of the torso. The shoulder blades are dorsal to the ribs. Ventral: In humans, toward the front of the torso. The navel is on the ventral aspect of the body. In humans, dorsal and ventral are mostly synonymous with posterior and anterior, and the latter terms are often used.
Your iPhone battery turns yellow as soon as you tap Turn On. Low Power Mode automatically turns off when you recharge your iPhone battery past 80%. Your iPhone battery is yellow because Low Power Mode is turned on. To change it back to normal, go to Settings -> Battery and tap the switch next to Low Power Mode.
Many people think that a yellow or green nasal discharge means a bacterial infection, which requires antibiotics but it is not true. It can be a sign that your body is being attacked by either a bacteria or a virus. That said, a yellow discharge does not necessarily indicate a sinus infection.