Head- Muscles of Facial Expression: Scalp, eyes, nose

Question 1

Nasalis

Answer 1

Origin: maxilla
Insertion: midline of nasal cartilage
Action: flares nostrils
CN VII- Facial nerve
BV: branches of facial artery & maxillary--> infraorbital

Question 2

Corrugator supercilii

Answer 2

Origin: Supraorbital margin of frontal bone
Insertion: media 1/2 of eyebrows; lateral supraorbital margin of frontal bone
Action: depression of eyebrows
Facial Nerve
BV: opthalmic, superficial temporal artery

Question 3

Orbicularis oculi

Answer 3

Origin: medial margin of orbit
Insertion: orbit, eyelids
Action: closes eyelids
Nerves: facial nerve
BV: facial, superficial temporal

Question 4

Frontalis

Answer 4

Origin: frontal bone, eyebrows
Insertion: galea aponeurosis
Action: eyebrow elevation
Nerve: facial
BV: branches of the internal and external carotid arteries

Question 5

Occipitalis

Answer 5

Origin: lateral 2/3 of sup nuchal line
Insertion: epicranial aponeurosis
Action: retracts scalp

Question 6

Transverse nasalis

Answer 6

Origin: maxilla fossa
Insertion: bridge of nose aponeurosis
Action: compresses and closes the nostrils

Question 7

Procerus

Answer 7

Origin: nasal bone & lateral nasal cartilages
Insertion: Skin of lower forehead- between eyebrows
Action: Depression of medial angle of the eyebrows