FORAMINA 487 FORAMINA 



TABLE OF FORAMINA.— Continued. 



Name. 



Location. 



Transmits. 



Optic (of the choroid). The choroid. 



The optic nerve-fibers pass through 

 this to their expansion in the re- 

 tina. 



Parietal. 



Near the posterior superior angle of the parietar bone ; incon- 

 stant. 



Profundum. 



See Iter ad infundibulum. 



An emissary vein of the superior 

 longitudinal sinus ; occasionally a 

 small branch of the occipital artery. 



Permits the entrance of air. 



The inferior petrosal sinus. 



Pterygo-palatine. 



The external aperture of the pterygo-palatine canal. 



Pterygo-palatine vessels; pharyngeal 

 nerve. 



Quadrate. 



The diaphragm. 



The inferior vena cava. 



Repugnatoria. 



In Cheilofcnatha, apertures of cutaneous glands on each side 

 of the back, in rows. 



Secrete a defensive corrosive fluid. 



