5. N. Hypoglossus, A.lingualis, N.lingualis, N.sublingualis, N.mylohyoideus, N.alveolaris mandibularis, Mm. Pterygoideii
A.lingualis comes from?
A. Carotis communis > A. Carotis externa > A. Lingualis
Branch of A.lingualis ?
Deep lingual artery, as it reaches the root of the tongue.
How to find N. alveolaris mandibularis ?
Follow N. lingualis dorsally. Transect pterygoideus muscle > see alveolar mandibular nerve crossing lingual nerve It enters mandibular foramen
How to find N. hypoglossus ?
It runs with A.lingualis, after transecting M.mylohyoideus.
How to find A.lingualis ?
It runs with N. hypoglossus
N. Hypoglossus function
Motor nerve of the tongue
Function of N.mylohyoideus ?
Motor to mylohyoid muscle & rostral part of digastric muscle
N. Alveolaris mandibularis (N. alveolaris inferior) comes from?
N. Alveolaris inferior > N. mandibularis > N. trigeminis (V)
N. Lingualis comes from ?
N. Lingualis > N. mandibularis (V3) > N. trigeminis (V)
N. Mylohyoideus comes from ?
N. Mylohyoideus > N. alveolaris mandibularis. > N. mandibularis > N. trigeminis (V)
N. Sublingualis comes from ?
N. Sublingualis > N. lingualis > N. mandibularis > N. trigeminis (V)
Origin / Insertion / Action of M. Pterygoideus medialis
O) fossa pterygopalatina I) fossa pterygoidea A) grinding movements, closes jaw
Origin / insertion / Action of M. Pterygoideus lateralis
O) ventral to canalis alaris I) fovea pterygoidea (next to condylar process) A) grinding movements, closes jaw.
Function of N. lingualis ?
Sensory nerve to the tongue (except the taste)
Which cranial nerve is N. hypoglossus ?
XII (12)