Anatomy. The tongue consists of a body and root and is attached by muscles to the hyoid bone below, the mandible in front, the styloid process behind, and the palate above, and by mucous membrane to the floor of the mouth, the lateral walls of the pharynx, and the epiglottis.aste buds are present on the surfaces of many of the papillae, esp. the vallate papillae. Mucous and serous glands (lingual glands) are present; their ducts open on the surface. The lingual tonsils are lymphatic tissue on the base of the tongue.
Box Breathing Technique. Box breathing minimizes stress. Photo Credit Stockbyte/Stockbyte/Getty Images. Four-square breathing, sometimes referred to as the box breathing technique, is a simple technique that you can do at any time that you feel stressed.
Delivery: Breathing circuits. 1  closed (fresh gas inflow exactly equal to patient uptake, complete rebreathing after carbon dioxide absorbed, and APL closed) 2  semi-closed (some rebreathing occurs, FGF and APL settings at intermediate values), or. 3  semi-open (no rebreathing, high fresh gas flow [higher than minute ventilation]) Open systems have no valves, no tubing: for example open drop ether, or a nasal cannula. In either, the patient has access to atmospheric gases. Non-rebreathing (Mapleson) breathing circuits. Photograph of the Mapleson D. Click on the thumbnail, or on the underlined text, to see the larger version (136 KB). All non-rebreathing (NRB) circuits lack unidirectional valves and soda lime carbon dioxide absorption: thus, the amount of rebreathing is highly dependent on fresh gas flow (FGF) in all. Work of breathing is low in all (no unidirectional valves or soda lime granules to create resistance).