Naasal venous drainage and the foramen caecum.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001344:Autopsy; D002648:Child; D002675:Child, Preschool; D003392:Cranial Sinuses / Q000033:anatomy & histology*; D004388:Dura Mater / Q000098:blood supply; D005624:Frontal Bone / Q000033:anatomy & histology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D008875:Middle Aged; D009666:Nose / Q000098:blood supply*