524 



ANATOMY IN A NUTSHELL. 



LESSON CLXXVI. 

 Ethmoid Bone. (Plates CCLVIII-CCLIX. 

 The ethmoid bone which consists of a horizontal plate a perpendicular plate 

 and two lateral masses is situated at the base of the cranium between the orbits. 

 It is a lighl spongy bone and cubical in form. Its body has the following 

 POI NTS FOR < onsideration: 



PLATE CCLXXII. 



ca 



T 0Rls — 



A Sagittal Section of the Female Organs of Generation. 

 1. Cribriform plate (horizontal) forms pan of the anterior fossa of the 

 skull as it is situated in the ethmoidal notch of the frontal bone and between 

 it^ orbital plates. 



