114 



HITCHCOCK'S ANATOMY 



Fig. 131. 



A Transverse Section of the Neck, show- 

 ing the Fascia Profunda, and its Pro- 

 longations as Sheaths for the Muscles. 

 1, Platysina Myoides. 2, Trapezius. 3, 

 Ligamentum Nuchae. 4, Sheath of Sterno- 

 cleidomastoid. 5, Muscle itself. 6, Point 

 of Union of its Fascia. 7, Point of Union 

 of the Fascia Profunda Colli of each side 

 of the Neck. 8, Section of the Sterno- 

 Ilyoid Muscle. 9, Section of the Omo- 

 Ilyoid Muscle. 10, Section of the Sterno- 

 Thyroid Muscle. 11, Lateral Lobe of the 

 Thyroid Gland. 12. Trachea. 13, (Esoph- 

 agus. 14, Blood-vessels and Pneuinogas- 

 tric Nerve in their Sheath. 15, Longus 

 Colli. 16, Rectus Anticus Major. 17, 

 Scalenus Anticus. 18, Scalenus Medius 

 and Posticus. 19, Splenius Capitis. 20, 

 Splenius Colli. 21, Levator Scapula. 22, 

 Complexus. 23, Trachelo - Mastoid. 24, 

 Transversalis Cervicis. 25, Cervicalis De- 

 scendens. 26, Semi-spinalis Cervicis. 27, 

 Multifidus Spinse. 2S, A Cervical Yertebra. 



chief about his waist in order 

 to give strength to his mus- 

 cles. And so important is 

 this membrane to the muscu- 

 lar system, that, upon the 

 thigh, where very great 

 strength and rapidity of 

 movement is required, this 

 membrane is thicker than in 

 most of the other parts of the 

 body ; and not only so, but a 

 muscle is also provided for the 

 especial purpose of rendering 

 this membrane very tense, 

 when any violent action is 

 required, or its own elasticity 

 is insufficient. 



235. Descriptions of par- 

 ticular Muscles. — In such a 

 treatise as the present one, it 

 will of course be impossible 

 to describe all the muscles as 

 minutely as the bones have 

 been, nor will it be necessary ; 

 but only those which are the 

 most interesting and instruc- 

 tive. 



236. Orbicularis Palpebral — The muscle which surrounds 

 the eye is a sphincter which is made of circular fibres, and 

 when contracted closes the eye, as it is termed. Consequently 

 this action requires the movement of no bones, and no attach- 

 ment to any thing but the soft parts of the face. It is called 

 the Orbicularis Palpebrae. Its antagonist is the Levator Pal- 



What is said about the importance of this fascia upon the thigh ? 236. What is the mus- 

 cle that opens and closes the eye, as it is termed? What kind of a muscle is this? 

 What is the antagonist of the Orbicularis Palpebrae ? 



