The acoustic characteristics of the skull.
D000042:Absorption; D000162:Acoustics / Q000295:instrumentation; D000328:Adult; D000818:Animals; D001842:Bone and Bones / Q000033:anatomy & histology / Q000502:physiology; D001921:Brain / Q000033:anatomy & histology / Q000196:embryology; D002417:Cattle; D006257:Head / Q000033:anatomy & histology / Q000502:physiology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D009991:Oscillometry; D012886:Skull / Q000033:anatomy & histology / Q000196:embryology / Q000502:physiology*; D013016:Sound; D014054:Tomography / Q000379:methods; D014159:Transducers; D014465:Ultrasonics; D014463:Ultrasonography