ANATOMY IN A NUTSHELL. 



.") 1 5 



Origin. — From the anterior surface of the lateral mass of the at la-, and 

 from the root of Its transverse process. 



Insertion. — Into the basilar process immediately behind the Rectus cap*- 

 it is anticus major. 



Action. — Same as the Rectus capitis anticus major. 



Nerve Supply.— Same as Rectus capitis amicus major. 



Blood Supply. — Prevertebral branches of the ascending pharyngeal. 



Superior constrictor. — Description. — This muscle, which is situated at 

 the upper part of the pharynx. i> of a quadrilateral shape ami thinner ami paler 



PLATE CCLXIX. 



CRANSVERSALIS FASCIA 



ILIAC FASCIA 



PELVIU PERITONEUM 



EXTRA- PERITONEAL TISSUE 



RECTOVESICAL FASCIA 



ABDOMINAL MUSCLES 



ILIAC CREST 



BORDER OF ACETABULUM 



■■•- 'I - '.£ 



ISCHIORECTAL FASCIA 

 SPHINCTERAL 



~. " & :\A 'ikr^T> APEX OF ISCHIORECTAL FOSSA 

 hf^ 'J' i, ="",y, 



HI . m0 



GLUTEUS MAXIMUS 



OBTURATOR FASCIA 



OBTURATOR INTERN 

 ALCOCK'S CANAL WITH PUDIC VESSELS 



The White Link and [schio-Rectal Fossa. 



than the other Constrictor muscles. Its superior fibers pa-- beneath the Leva- 

 tor palati muscle ami the Eustachian tube. Between the upper border of this 

 JBouscle ami the basilar process this muscle is deficient in fibers ami closed by 

 the pharyngeal aponeurosis. This interval is known as the sinus of Morgagni. 

 Origin. — (1) From the lower one-third of the posterior margin of the 

 internal pterygoid plate, (2) its hamular process, ■'■'<> the contiguous portion of 

 the palate bone. (4i the reflected tendon of the Tensor palati muscle, 

 the pterygo-maxillary ligament, (6) the aveolar process above the posterior 

 extremity of the mylo-hyoid ridge, i?i a few fiber- from the side of the tongue. 



