THE HEAD AND NECK. 



103 



with the external surface of the internal pterygoid plate internally, and with the 

 internal pterygoid muscle externally ; the tendon turns inward around the 

 hamular process, and is inserted into the aponeurosis of the soft palate and into 

 the under surface of the horizontal plate of the palate bone. This muscle you 

 will find in front of and to the outer side of the cartilaginous part of the 

 Eustachian tube. 



Wliat is tlic salpingo-pJiaryngcus muscle ? 



A name by which those fibres of the palato-pharyngeus muscle are desig- 

 nated that arise from the cartilaginous part of the Eustachian tube. 



Name all the muscles attached to the Eustachian tube. 



(i) The levator palati ; (2) the tensor palati ; (3) the salpingo-pharyngeus, 

 or the Eustachian part of the palato-pharyngeus ; (4) the tensor tympani. 



FIG. 64. MEDIAN SECTION OK MOUTH, PHARYNX, AND LARYNX. 



Left nostril. 2. Upper lateral cartilage. 3. Inner portion of lower cartilage. 4. Superior turbinated 

 bone and meatus. 5. Middle turbinated bone and meatus. 6. Inferior turbinated bone and meatus. 

 7. Sphenoid sinus. 8. Posterior nasal fossa. 9. Internal orifice or pavilion of Eustachian tube. 

 10. Velum palati. II, II. Vestibule of mouth. 12. Palatine vault. 13. Genio-glossus muscle. 

 14. Genio-hyoid. 15. Mylo-hyoid. 16. Anterior pillar of velum palati. 17. Posterior pillar. 18. 

 Tonsil. 19. Circum vail ate papillse of tongue. 20. Cavity of larynx. 21. Ventricle. 22. Epiglottis. 

 23. Ilyoid bone. 24. Thyroid cartilage. 25. Thyro-hyoid membrane. 26. Posterior portion of 

 cricoid cartilage. 27. Anterior portion. 28. Crico-thyroid membrane. 



Ho a' is the pharynx innervated ? 



From the pharyngeal plexus, located on the outer surface of the middle and 

 inferior constrictor muscles and formed by the vagus, glosso-pharyngeal, and 

 by branches from the superior cervical ganglion of the sympathetic. 



Give the attachments of the pharynx. 



The sphenoid (Eig. 11), the pharyngeal spine of the occipital, the petrous 

 portion of the temporal, the Eustachian tube, internal pterygoid plate, posterior 

 nares, mouth and larynx, prevertebral fascia, and oesophagus. 



The rectus capitis anticus major arises from the anterior tubercles of the 

 transverse processes of the third, fourth, fifth, and sixth cervical vertebrae. It is 

 inserted into the under surface of the basi-occipital part of the occipital bone. 



