Explore the anatomy and function of the head and neck muscles with Innerbody's interactive 3D model. by Tim Taylor Last updated: Jan 2nd, 20252D Interactive NEW3D Rotate and Zoom Anatomy Explorer Clavicular Head of Sternocleidomastoid Muscle Depressor Anguli Oris Muscle Depressor Labii Inferioris Mu...
The interarytenoid (transverse arytenoid) muscle works synergistically with the lateral cricoarytenoid to maintain glottic closure when the cords are adducted. This muscle originates from the medial aspect of the arytenoid cartilage and inserts onto the contralateral interarytenoid muscle. The sole ...
Head Muscles Neck Muscle Anatomy Neck Muscles Dysfunction Lesson Summary Frequently Asked Questions How many muscles control the head and neck? There are twenty six muscles in the head and neck. These muscles are responsible for a wide range of motions from movement of head and neck to vision...
Anatomy▶Head and Neck▶Muscles▶Muscles of Head and Neck Muscles of Head Orbicularis Oculi Theorbicularis oculiis a large muscle that completely surrounds each orbital orifice and extends into each eyelid. It closes theeyelids. It has two major parts: ...
Sternocleidomastoid muscle: the sternocleidomastoid muscle arises from the clavicle and sternum. It is composed of two heads—a lateral/clavicular head and a medial/sternal head. Upon contraction of one side of the muscle, it rotates the head towards the contralateral side of the body and pulls ...
The model's design also makes it an excellent conversation starter for those interested in the fundamental of anatomy and physiology, anatomy of the visual system, or human anatomy for beginners. This model shows the muscle of the head, neck and superior thoracic region. Superficial and deep ...
a. Posterior side of the external carotid, styloid process level and superior to the stylohyoid muscle b. Supply mastoid air cells, stapedius muscle, and internal ear Maxillary artery a. From the external carotid in the parotid gland and travels between the mandibular ramus and shpenomandibular...
-“prayer muscle” - O: sternum and clavicle - I: temporal bone (mastoid process) - A: flexes neck and rotates head Trapezius Muscle - resembles a trapezium - very large superficial muscle located at the back and posterior part of the neck ...
Gross disturbances of the posture of the neck may affect the growth of the face, as when the head is habitually held on one side on account of pathological shortening of the sternomastoid muscle. That part of the face which is on the side to which the head is inclined fails to grow as...
Muscles of the Head and Cervical Region The skeletal muscle of the head and neck is mesodermal in origin. Quail/chick grafting experiments have shown that the paraxial mesoderm, specifically the somitomeres, constitutes the main source of the cranial musculature. The cells that make up some of ...