Category: S

An instrument used to listen to sounds made by the heart, the lungs, and arterial narrowing or pulsations (including sounds in the arm during blood pressure measurement). An instrument used to listen to the heart and lungs actions. A surgical instrument with two earpieces connected to a tube and a metal disc, used by doctors…

A mineral that makes up 40 percent of sodium chloride, which is commonly used as table salt in cooking and in processed food. Some salt-sensitive people retain salt and water, which can cause hypertension. A chemical element which is the basic substance in salt. An essential mineral found in every cell in the body. Sodium…

Elaborate, give off, or produce. To separate from the blood or a gland. To produce a substance such as hormone, oil or enzyme. To separate from the blood, a living organism, or a gland. To isolate, especially to extract a secretion from blood or create one using materials provided by the blood.  

A genus or geographic area that includes many species.  

A structure bearing sporangia in ferns. Each group or patch of minute spore sacs (sporangia) on the fertile frond of a fern. They can take a variety of forms and are often shielded by a flap or hood of leafy tissue, the indusium.  

Clump-forming, making shoots at or just below ground level.  

With the ovary only partly below the level of the perianth attachment.  

Of plants that have thick, fibrous leaves, adapted to survive dry climatic conditions.  

A tree or large shrub that forms rosettes at the branch tips, like some woody Senecio, Lobelia, Lecythidaceae, some woody Asparagaceae, some branching or clumping palms and some tree ferns. Their leaves often collect fallen litter.  

With a slender tube and an abruptly widening limb, like a trumpet.