454 GLOSSARY 



Sarcoplasm. The finely granular material between the fibrils of 

 muscle tissue. 



Sartorius (muscle). (From the Latin word sartor, "a, tailor.") 

 The tailor muscle. Named after the ancient method the tailor assumed 

 while at work, squatting with his knees bent, and the feet and leg 

 crossed. 



Scaphoid (bone). Boat-shaped. A bone of the wrist and instep. 



Scapula (bone). (From the Latin.) A shoulder-blade. 



Secretion. (From the Latin word secernere, "to secrete, separate.") 

 1. The act of secreting or forming from materials furnished by the 

 blood a certain substance which is either eliminated by the body or 

 is used in carrying on certain functions. 2. The substance secreted, 

 as bile, sweat, etc. 



Secretor or Secretory. Pertaining to or performing secretion of a 

 gland, etc. 



Sella Turcica. (A Turkish saddle.) The pituitary fossa of the 

 body of the sphenoid bone, lodging the pituitary body. 



Semilunar. (From the Latin words semi, "half;" luna, "moon.") 

 Resembling a half -moon in shape. 



Semimembranosus (muscle). Half-membrane. 



Semitendinosus (muscle). Half -tendon. 



Septum (pi. septa). (From the Latin word sepire, "to hem in.") 

 A partition, a dividing wall, as nasal septum, etc. 



Sensor or Sensory. (From the Latin word sentire, "to feel.") 

 Pertaining to or conveying sensation, as a sensor nerve. 



Serous (membrane). Pertaining to or resembling serum. 



Serum. (From the Latin word serum, "serum.") 1. The clear, 

 yellowish fluid separating from the blood after the coagulation of the 

 fibrin. 2. Any clear fluid resembling the serum of the blood. 



Sigmoid. Shaped like the Greek letter 2. 



Sinus. A hollow or cavity. 



Soleus (muscle). A flat muscle of the calf. 



Solitary. (From the Latin word solitarius, "solitary.") Single, 

 existing separately. 



Specific Gravity. The measured weight of a substance compared 

 with that of an equal volume of another taken as a standard. 



Sphenoid. Wedge-shaped. 



Spheric. Having the shape of a sphere. 



Sphincter. A muscle surrounding and closing an orifice; as sphincter 

 ani muscle. 



Spicule. A minute, sharp-pointed body, as a spicule of bone. 



Spinal (nerve). 1. Pertaining to the spine. 2. Pertaining to the 

 spinal cord. 



Spinus. (From the Latin word spina, "a spine or thorn.") Resem- 

 bling or pertaining to a spine. 



Squamous. (From the Latin word squamosis, "scaly.") Of the 

 shape of a scale. 



Stellate. (From the Latin word stella, "a star.") Star-shaped. 



Sternohyoid (muscle). From the sternum to the hyoid bone. 



Sternomastoid (muscle). From the sternum to the rnastoid. 



Sternothyroid (muscle) . From the sternum to the thyroid cartilage. 



Sternum. Breast bone. 



