4k wallpaper cars muscles of mastication slideshare powerpoint. Of small size minor located in the pectoral region chest. Having 3 heads triceps or points of origin and located in the brachium arm. Widescreen ultra wide multi display desktops.
It is the muscle of mastication that occupy primarily a horizontal position. They are functionally classified as. It arises from the temporal fossa and the deep part of temporal fascia.
Lateral pterygoid plate the lingual nerve inferior alveolar nerve lower part of the muscle is seperated from the. Tablet smartphone page 1. Classic cars ultra hd desktop background wallpapers for 4k 8k uhd tv.
All basic muscles of mastication are supplied by the 2nd part of maxillary artery which in turn is a branch of external carotid artery. Muscles of mastication. Masseter temporalis medial pterygoid upper head of lateral pterygoid jaw depressors.
Muscles of mastication are derived from first brachial arch that is the mandibular arch. It covers much of the temporal bone. Located near the inside with fibers that run obliquely in a slanting direction.
Coming to plapation of muscle. Unit 4 part 5. Their venous drainage is through the retromandibular vein and lymphatic drainage is by the submandibular and sublingual lymph nodes.
Lateral or external ptergoid muscle it is a thick and triangular muscle with two heads. Opening and closing of jaws. Development muscles of mastication develops from the mesoderm of the first brachial arch that is also called the mandibular arch 6.
Ramus of the mandible maxillary artery sphenomandibular ligament maxillary artery ramus sphenomandibular. It passes medial to the zygomatic arch and inserts onto the coronoid process of the mandible. Pterygoid muscle differentiate in the 7th week it is related to the cartilage of the cranial base and the condyle initially later as the bony skull appears and increases in width and length the muscle expands rapidly.
Lower head of lateral pterygoid anterior digastric geniohyoid mylohyoid. 1111111111111111111111111111111 1111111111111111111111111111111 1111111 relations of medial pterygoid superficial relations upper part of muscle is seperated from the lateral pterygoid muscles by. Definition muscles of mastication actions takes in mastication chewing reflex muscles of mastication functions points to cover.