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All of the following are dilator muscles ofthe lips, except: Levator labii superioris Depressor anguli oris Orbicularis oris Zygomaticus major

corbicularis oris muscle is the contrictor of the mouth and help in closing the mouth , or pursing the mouth as in whistling

Smiling and laughingZMSadness Levator Labii Superioris, Levator anguli orisGriefDepressor anguli orixsFrowningCorr sup, proceruswww.aimmds.com

Horror, terror, frightPlatysmaSurpriseFrontalisDoubtMentalisGrinning Risorius Contempt Zygomaticus Majorwww.aimmds.com

Screwing up the eye' is due to action of which facial muscle: Corrugator supercilli Orbicularis oculi Frontal belly of the occipitofrontalis Procerus

b"Ref: pg 67, 57 ionChaurasia 5th editionc) Orbicularis oculi: Tight closure of the eyes . Orbicularis oculi: Tight closure of the eyes * Opening : A. Palpebral fissure Sphincter: Orbicularis OculiDilators: 1. Levator palpebrae superioris 2. Frontalis part of occipitofrontalis"

When a patient attempts protrusion, the mandible deviates markedly to the right. Which of the following muscles is unable to contract?left temporalisright temporalisright medial pterygoidRight lateral pterygoidwww.aimmds.com

The superior portion of the genioglossal muscle joinsmandible to styloid process of the skull.mandible to tongue.mandible to hyoid.hyoid to tongue.

B

Muscles of tongueExtrinsic : StyloglossusGenioglossusHyoglossusPalatoglossus

IntrinsicSuperior longitudinalInferior longitudinalTransverseVerticalis

Which of the following muscle is primarily responsible for protrusion of tongue:Styloglossus Palatoglossus Hyoglossus, Genioglossus

d"Reference: Charasia Vol 3 page no 223Explanation: The genioglossus is the only muscle ofthe tongue whichprotrudes it forwards. It is used for testing the integrity of hypoglossal nerve. If hypoglossal nerve of the right side is paralysed, the tongue on protrusion will deviate to the right side."

All the following muscles are innervated by the facial nerve except:Occipito-frontalisAnterior belly of diagastricRisoriusProcerus

The combined action of the following musctes is responsible for the straight upward movement of the eyeball Superior rectus & inferior rectus Superior rectus & superior oblique Superior rectus & inferior oblique Superior oblique & inferior rectus

Movement of the eyeSuperior rectusMedial rectusInferior rectusInferior obliqueSuperior obliqueLateral rectusintorsionextorsion

C"reference: Chaurasia 5th edition vol 3 page no :117explanation: 1. Upward rotation or elevation: By the superior rectus and the inferior oblique.2. Downward rotation or depression: By the inferior rectus and the superior oblique.3. Medial rotation or adduction: By the medial rectus, the superior rectus and the inferior rectus.

4. Lateral rotation or abduction: By the lateral rectus, the superior oblique and the inferior oblique.5. Intortion: By the superior oblique and the superior rectus.6. Extortion: By the inferior oblique and the inferior rectus."

Muscles of orbit

All the muscles of the eye are supplied by III nerve except SO4 and LR6

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