322 



ANATOMY FOR NURSES 



[Chap. XVI 



Parathyroids 



Thymus 



Adrenals . 



Hypophysis 



Epiphysis . 



Carotid 

 Glands 



Coccygeal 

 Gland 



Four snijiU ninsscs, each about j in. diameter. 

 Two are emlx'ddcd in each lobe of thyroid. 

 Consi.st of epitlieUoid cells, invested with areolar tissue. 

 Function is supposed to consist in neutraUzing toxic 

 substance.s. 



Consists of two large masses of glandular tissue situated 

 below the thyroid and in front of the trachea. 



Temporary organ. Appears at second month of intra- 

 uterine life, grows until child is two or three years of 

 age, and it weighs about six drachms. Then atrophies 

 steadily until age of puberty, when onlj^ some shreds 

 of tissue are left. 



Function not definitely known, but it is thought to have 

 a definite connection with growth and with the de- 

 velopment of the reproductive organs. 



Small glands lying above each kidney. Weigh one 



drachm. 

 Consist of a fibrous framework, the spaces of which are 



filled with groups of cells. Thej'' are enclosed in a 



fibrous capsule and are well supplied with blood-vessels, 



lymphatics, and nerves. 

 Internal secretion — adrenalin. 

 Function seems to be connected with maintaining the 



normal tone of the heart and blood-vessels. 



■ Small reddish gray gland, weighs 5-10 grains. 



Consists ( Anterior lobe, large and glandular. 



of two < Posterior lobe, small and composed of nerve 

 lobes . [ tissue. 



Lodged in depression of the sphenoid bone. 



Function not positively known, but it is thought to have 

 a definite connection with growth, with the organs of 

 circulation, with the secretion of urine and milk; and 

 with the metaboUsm of the carbohydrates. 



Small reddish gray body located in the third ventricle of 

 the brain. Glandular organ and attains maximum 

 growth about seventh year. From this period and 

 particularly after puberty it decreases in size and be- 

 comes fibrous. 



Function not definitely known, but it is thought to in- 

 hibit growth and restrain the development of the re- 

 productive organs. 



Small glands, one situated in bifurcation of each carotid 



artery. 

 Small gland A in. in diameter, situated in front of tip 



of coccyx. 



