448 GLOSSARY 



Mucous. Containing or having the nature of mucous. 



Multipolar. (From the Latin words multus, many; polus, "a pole.") 

 Having many poles, as multipolar nerve cells, having many processes. 



Myelinic. Relating to myelinic nerve fibers, those possessing a 

 myelin sheath. 



Myocardium. The muscular tissue of the heart. 



Myosin. (From the Greek word meaning muscle.) A protein 

 of the globulin class, found in coagulated muscle-plasma, and formed 

 from the antecedent globulin myosinogen. " 



Naris (pi. es). (From the Latin word n-aris, "the nostril.") One 

 of a pair of openings at the anterior or posterior part respectively of 

 the nose. 



Nasal. (From the Latin word nasus, "the nose.") Pertaining to 

 the nose. 



Nervus Intermedius. The nerve situated between, as the Nervus 

 intermedius between the facial and auditory nerves. 



Neural (canal). Pertaining to nerves. Neural canal: The bony 

 canal comprising the cavity of the cranium and vertebral column 

 which contains the central nerve system. 



Neurilemma. The sheath encasing a nerve fiber. 



Neuroglia. The tissue forming the basis of the supporting frame- 

 work of the nerve tissue. It consists of glia cells. 



Neurone or Nerve Cell. One of the countless number of units of 

 which the nerve system is composed. The basis for all nerve tissue 

 activity. 



Node. (From the Latin word nodus, "a swelling.") A knob, 

 swelling, or protuberance. 



Nodule. (Nodulus, dim. of nodus, "a swelling.") A small node or 

 swelling. 



Nucha (pi. se). (Ligamentum nuchae.) (From the Latin word nucha, 

 "nape of neck.") The ligament of the nape of the neck. 



Nucleated. Possessing a nucleus. 



Nucleolus. (Dim. of nucleus from nux, " a nut.") The small rounded 

 body within the cell nucleus. 



Nucleus. (From the Latin word nux, "a nut.") The essential part 

 of a typical cell, usually round in outline, and situated near the centre. 



Nutrient Canal. One that affords nourishment, as the nutrient 

 canal of a bone, which contains a nutrient artery. 



Obturator. (From the Latin word obturare, "to stop up.") That 

 which closes an opening; as obturator membrane or foramen of innomi- 

 nate bone. 



Occipital (bone). Pertaining to the occiput. (See Occiput.) 



Occipitofrontalis (muscle). From the occiput to the forehead. 



Occiput. (From the Latin words ob, "against;" caput, "the head.") 

 The back part of the head. 



Odontoid. Resembling a tooth. 



Olecranon (process). The large convex portion of the back part of 

 the upper end of the ulna. The point of the elbow felt beneath the 

 skin. 



Olfactory. (From the Latin word olfacere, "to smell.") Pertaining 

 to the sense of smell. 



