4.02 - face, scalp, muscles of mastication, temporomandibular joint

what makes up the layers of the scalp?

what are the muscles of facial expression innervated by?

what are the muscles of mastrication innervated by?

what are the origin, insertion and action of occipitofrontalis?

what are the 2 muscles of the orbit?

• orbicularis oculi

• levator palebraesuperioris

describe obicularis oculi and its action

describe levator palpebrae superioris and its action and innervation

what is the muscle of the nose and what does it do?

what are the muscles of the ear and what do they do?

describe levatator labii superioris, zygomaticus major and minor and risoris

describe obicularis oris and buccinator

describe depressor labii inferioris, depressor anguli oris and mentalis

how many nuscles of mastication are there? what do they do?

describe the origin, insertion, innervation and function of temporalis

describe the origin, insertion, innervation and function of massester

describe the origin, insertion, innervation and function of the medial and lateral pterygoid msucles

what are the parts of the temporo-mandibular joint (TMJ)

describe the structure of TMJ

describe the capsule of TMJ

name and describe the ligaments of the TMJ

what are the movements of the TMJ?

describe the different phases of opening the TMJ

how can dislocation fo the TMJ occur?

which muscles are involved in elevation of the madible (close mouth)

• temporalis

• massester

• medial pterygoid

which muscles are involved in depression of the madible (open mouth)

• lateral pterygoid

which muscles are involved in protrusion of the madible (protrude chin)

• lateral pterygoid

• massester

• medial pterygoid

which muscles are involved in retrusion of the madible (retrude chin)

• temporalis (posterior oblique and near horizontal fibers)

which muscles are involved in lateral movements of the madible (grinding and chewing)

• temporalis of same side

• pterygoids of opposite side

• massester

what happens to the disc as the TMJ opens?

what are the two vascular systems of the body?

• circulatory system and lympathic system

what are the major sections and branches of the aorta

how is the subclavian artery divided? what do these parts supply?

how does the carotid artery branch and what do these branches supply?

name the internal branches of the carotid artery

what are the 3 venous drainage systems of the head and neck?

compare the external and internal jugular veins