Concerning the apex of lung, which is true ()
A. extends about 2.5cm above the medial one-third of clavicle
B. extends about 2.5cm above the middlel one-third of clavicle
C. extends about 2.5cm above the lateral one-third ofclavicle
D. extends about 2.5cm above the medial half of clavicle
E. not extends above the clavicle
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The recurrent (or inferior) laryngeal nerve innervates all the intrinsic laryngeal muscles, EXCEPT: ()
A. lateral cricoarytenoid
B. posterior cricoarytenoid
C. cricothyroid
D. vocalis
E. transverse arytenoid
The parotid duct Open into ()
A. dorsum of tongue
B. Cheek mucosa near second molar of upper jaw
C. root of tongue
D. nasopharynx
E. isthmus of fauces
The middle meningeal artery arise from ()
A. external carotid a.
B. internal carotid a.
C. superficial temporal a.
D. maxillary a.
E. facial a.
The nerve of controling masseter is ()
A. facial nerve.
B. maxillary nerve.
C. vagus nerve.
D. trigeminal nerve.
E. lingual nerve.