CN Muscle Innovators

Question 1

IV - Trochlear

Answer 1

Superior Oblique

Question 2

V - Trigeminal

Answer 2

• Masseter
• Temporalis
• Pterygoid
• Soft Palate
• Mylohyoid

Question 3

VII - Facial

Answer 3

• Obicularis Oculi
• Obicularis Oris
• Zygomatic minor and major
• Levators
• Depressors
• Mentalis
• Buccinator
• Platysma
• Stylohyoid
• Posterior Belly of Digastric

Question 4

IX - Glossopharyngeal

Answer 4

• Stylopharyngeal Muscles

Question 5

X - Vagus

Answer 5

• Soft palate
• Superior, middle and inferior pharyngeal constrictors
• Intrinsic muscles of larynx: cricothyroid, thyroarytenoid, posterior cricoarytenoid, lateral cricoarytenoids, interarytenoids
• Oesophageal muscles

Question 6

XI - Cranial Accessory

Answer 6

Contributes to:

• Levator veli palatini
• Palatoglossus
• Palato-pharyngeus
• Salpingo-pharyngeus

Question 7

Spinal Accessory Muscle

Answer 7

• Sternomastoid

- Trapezius

Question 8

XII - Hypoglossal

Answer 8

• All intrinsic muscles of tongue
• Some extrinsic muscles of the tongue: Superior longitudinal, inferior longitudinal, transverse, verticalis, genioglossus, hyoglossus, styloglossus