Section 1 The muscles of head The facial muscles R动 the epicranium facie M 1e/0 the orbicularis oculi -the muscles around the mouth The masticatory muscles m. ias cell-i. the masseter 。 还突舌管 clases.---- the temporalis the medial pterygoid the lateral pterygoid Exus brachia 5
Section 1 The muscles of head ➢ The facial muscles -the epicranius -the orbicularis oculi -the muscles around the mouth ➢ The masticatory muscles -the masseter -the temporalis -the medial pterygoid -the lateral pterygoid
Section 2 The muscles of neck By their situations the muscles of neck are divided into three groups superficial, anterior and deep I. the superficial group 1. the platysma
Section 2 The muscles of neck By their situations the muscles of neck are divided into three groups: superficial, anterior and deep. Ⅰ. the superficial group 1. the platysma
2. Sternocleidomastoid ORIGIN manubrium and clavicle INSERTION mastoid process ACTION Protracts head when acting together; The head is inclined laterally and the face is rotated to the opposite side
2. Sternocleidomastoid ACTION Protracts head when acting together; The head is inclined laterally and the face is rotated to the opposite side INSERTION mastoid process ORIGIN manubrium and clavicle
II. the anterior group 1. the suprahyoid muscles digastric mylohyoid stylohyoid Geniohyoid 2. the infrahyoid muscles sternohyoid omohyoid sternothyroid thyrohyoid
Ⅱ. the anterior group 1. the suprahyoid muscles ➢ digastric ➢ mylohyoid ➢ stylohyoid ➢ Geniohyoid 2. the infrahyoid muscles ➢ sternohyoid ➢ omohyoid ➢ sternothyroid ➢ thyrohyoid