1. inferior thalamostriate vein tributaries to the basal vein
  2. superior thalamostriate vein a long vein that helps to form the internal cerebral vein
  3. inferior epigastric vein empties into the external iliac vein
  4. inferior pulmonary vein either of two pulmonary veins (left and right) returning blood from the inferior lobes of the lungs
  5. inferior thyroid vein any of several veins on each side that drain the thyroid gland and empty into the innominate vein
  6. thalamostriate vein a vein serving the thalamus and corpus striatum
  7. inferior ophthalmic vein a vein that drains a venous network in the floor and medial wall of the eye socket
  8. inferior labial vein a tributary of the facial vein that drains the lower lip
  9. inferior alveolar artery the alveolar artery that goes through the mandibular canal to supply the lower teeth
  10. inferior cerebral vein veins that drain the undersurface of the cerebral hemispheres and empty into the cavernous and transverse sinuses
  11. infrastructure the basic features of a system or organization
  12. infrared radiation electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
  13. inferior labial artery an artery that is a branch of the facial artery that supplies the lower lip
  14. infrared emission electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
  15. infraorbital artery an artery that originates from the maxillary artery and supplies structures below the orbit (from lower eyelid to upper lip)
  16. superior thyroid vein a vein on each side that drains the upper part of the thyroid and empties into the internal jugular vein
  17. inference a conclusion you can draw based on known evidence
  18. undemonstrative not given to open expression of emotion
  19. stylomastoid vein a vein that drains the tympanic cavity and empties into the retromandibular vein
  20. inferiority complex a sense of personal inferiority arising from conflict between the desire to be noticed and the fear of being humiliated