A system of human anatomy, general and special . ide of the face, arising in the cellular tissuecovering the parotid gland, and inserted into the angle of the mouth,constituting the risorius Santorini. The entire muscle is analogousto the cutaneous muscle of brutes, the panniculus carnosus. Relations.—By its external surface with the integument, with whichit is closely adherent below, but loosely above. By its internal surface,below the clavicle, with the pectoralis major and deltoid; in the neck,with the external jugular vein and deep cervical fascia; on the face,with the parotid gland, the m
A system of human anatomy, general and special . ide of the face, arising in the cellular tissuecovering the parotid gland, and inserted into the angle of the mouth,constituting the risorius Santorini. The entire muscle is analogousto the cutaneous muscle of brutes, the panniculus carnosus. Relations.—By its external surface with the integument, with whichit is closely adherent below, but loosely above. By its internal surface,below the clavicle, with the pectoralis major and deltoid; in the neck,with the external jugular vein and deep cervical fascia; on the face,with the parotid gland, the masseter, the facial artery and vein,the buccinator, the depressor anguli oris, and the depressor labii in-ferioris. On raising the platysma throughout its whole extent, the sterno-mastoid is brought into view. The Sterno-cleido-mastoid is the large oblique muscle of the neck,and is situated between two layers of the deep cervical fascia. Itarises as implied in its name from the sternum and clavicle (xXsi&ov), 200 and passes obliquely upwards and backwards to be inserted into the mastoid process and intoFig. 105.* the superior curved line of the occipital bone. Thesternal portion arises by arounded tendon, increasesin breadth as it ascends,and spreads out to a con-siderable extent at its inser-tion. The clavicular por-tion is broad and fleshy,and separate from the ster-nal portion below, but be-comes gradually blendedwith its posterior surfaceas it ascends. Relations.—By its su-perficial surface with theintegument, the platysmamyoides, the external ju-gular vein, superficialbranches of the anterior cervical plexus of nerves, and the anteriorlayer of the deep cervical fascia. By its deep surface with the deeplayer of the cervical fascia; with the sterno-clavicular articulation,the sterno-hyoid, sterno-thyroid, omo-hyoid, scaleni, levator anguliscapulas, splenii, and the posterior belly of the digastric muscle ; with#the phrenic nerve, and the poster
Size: 1612px × 1551px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1840, booksubjectanatomy, bookyear1847
