Newest Version A With Complete Questions &
Accurate Detailed Answers (Verified 100%)
Already Graded A+
what is the ansa cervicalis?
a nerve loop between C1-3 arising from cervical spinal nerves and
supplying muscles of the anterolateral neck. located in or just
anterior to the carotid
sheath
what is posterior to the carotid sheath?
sympathetic trunk
what are the superficial branches of the external carotid?
superior thyroid artery
lingual artery
facial artery
ascending pharyngeal
artery occipital artery
posterior auricular artery
,trace the lingual artery
-passes deep to intermediate tendon of digastric and submandibular
gland
-then medial to hypoglossus
-supply postero-inferior tongue
trace the facial artery
-loops posterior to the submandibular gland
-crosses body of mandible
-runs obliquely across face to medial eye
-branches into tonsilar artery, submittal artery, inferior and superior
labial arteries
-supplies soft palate, tonsils, submandibular and sublingual glands,
adjacent muscle and superficial face
what is a variation fo the lingual and facial arteries?
they can arise as a common trunk
trace the ascending pharyngeal
-small posterior branch arising near the origin of the external carotid
-pass deep to styloid muscles
-branches into extra cranial and intracranial branches
,what does the extra cranial branch of the ascending pharyngeal artery
supply?
upper pharynx
temporomandibular joint
tympanic cavity
what does the intra cranial branch of the ascending pharyngeal artery
supply?
passes through foramen magnum to supply meninges
trace the occipital artery
runs deep to posterior belly of
digastric passes behind the mastoid
supply SCM + muscles and skin of occiput
trace the posterior auricular artery
rises above posterior belly of digastric
supply parotid gland, auricle and occipital region
what are the anterior branches of the external carotid?
superior
thyroid
lingual
facial
, what are the posterior branches of the external carotid?
ascending pharyngeal
occipital
posterior auricular
what are the terminal branches of the external carotid?
superificial temporal
maxillary arteries
where doe the terminal branches of the external carotid divide?
within the parotid at the neck of condyle
what are the branches of the superficial temporal artery branches?
transverse facial
artery zygomatic-
orbital artery
trace the transverse facial artery
arises from superficial temporal artery within
parotid below zygomatic arch
pass anteriorly to supply part of parotid and inferior orbicularis oculi