The Desk Reference Manual defines the specific. processes and procedures used by the FI$Cal Project Management Office (PMO) Schedule. Unit to develop, maintain, control, analyze and report on project schedules. The Schedule. Management Plan defines schedule management policies and high-level processes. 1.1 Purpose.
Only a layer of bone separates your sinuses from your brain. Itâs not likely, but if a sinus infection passes through the bone, it can infect the lining of the brain or the brain itself. Itâs also uncommon, but a sinus infection could spread into the eye socket, causing an infection that could cause blindness.
The posterior ethmoidal sinuses open out at the level of the superior meatus. The only structure not to empty out onto the lateral walls of the nasal cavity is the sphenoid sinus. It drains onto the posterior roof. In addition to the paranasal sinuses, other structures open into the nasal cavity. The nasolacrimal duct acts to drain tears from the eye â it opens into the inferior meatus. The auditory (or eustachian) tube opens into the nasopharynx at the level of the inferior meatus.