Flashcards in Anterior Cervical Triangle Deck (56):
Boundaries of the AC triangle
Anterior: median line of neck
Superior: inferior border of mandible
What nerve supplies the platysma?
What are the 5 veins of the anterior triangle?
Anterior Jugular V
Internal Jugular V
What does the facial vein drain to?
From angle of eye and drains IJV
What does the posterior branch of the retromandibular vein join and drain to?
Posterior branch joins with posterior auricular and drains into EJV
Anterior jugular V drains where?
drains to EJV
What does the communicating branch connect to?
facial vein and AJV
What does the IJV drain?
Brain, anterior face, and cervical viscera
What veins join to make the retromandibular vein?
Maxillary vein and superficial temporal vein come together
Anterior branch of retromandibular joins and drains where?
Anterior branch and facial join and drain into the IJV
What does the anterior branch of the retromandibular and facial vein called?
Where is Erb's point?
Posterior surface of SCM in the middle
What emerges at the Erb's point?
Transverse Cervical nerve
What cervical levels is the transverse cervical n at
What does the transverse cervical nerve supply?
Skin of anterior cervical triangle
What are the 5 components of the cervical visercea?
Cupula of pleura
What are the 2 components of the thyroid cartilage?
What are the 3 components of the carotid sheath?
What are the 5 arteries of the anterior triangle
common carotid a
external carotid a
internal carotid a
common carotid bifurcates to what two arteries?
external and internal carotid
what does the external carotid a supply?
external head and neck
what does the internal carotid artery supply?
anterior and mid brain
what does the vertebral a supply?
what does the thyocervical trunk supply?
what foramen does the vertebral artery go through to get to the brain?
The vertebral arteries join together to form what artery?
The right common carotid artery begins where?
at the bifurcation of the brachiocephalic trunk
The left common carotid artery arises from where?
what are the terminal branches of the external carotid a
maxillary a and superficial temporal a
What are the 4 subdivisions of the anterior triangle?
What are the four muscles of the suprahyoid?
What muscles subdivide the ACT?
what are the 2 components of the digastric m?
anterior and posterior bellies
what are the 4 muscles of the infrahyoid muscles?
what are the 2 components of omohyoid m?
superior and inferior bellies?
why are there deep intermediate muscles?
flexibility with hyoid bone. breathing talking, swallowing, eating.
what are the borders of the submandibular triangle?
superior boundary: inferior border mandibule
anterior/inferior boundary: anterior belly digastric m
posterior/inferior boundary: posterior belly digastric m
what are the 5 components of the submandibular triangle
submandibular salivary gland and lymph nodes
marginal mandibular branch of facial nerve
mylohyoid branch of CN V3
boundaries of the submental triangle?
Left lateral boundary: left anterior belly digastric m
right lateral boundary: right anterior belly digastric m
inferior boundary: hyoid bone
What are the contents of the submental triangle?
Mylohyoid muscle (floor of mouth)
submental lymph nodes
few small veins
boundaries of muscular triangle
anterior boundary: median line of neck
posterior/superior boundary: superior belly of omohyoid m
posterior/inferior boundary: SCM
muscular triangle contents
visceral structures of neck
What are the visceral structures of the neck of the muscular triangle?
common carotid a
what are the boundaries of the carotid triangle
anterior/superior boundary: posterior belly digastric m
anterior/inferior boundary: superior belly of omohyoid m
What are the nerves of the carotid triangle?
ansa cervicalis (C1-C3)
laryngeal n (CN X branches)
What are the arteries of the carotid triangle?
common, internal, and external carotid and 6 branches of the external carotid (3 anteriors and 3 posteriors)
what are the 3 anterior branches of the external carotid?
what are the 3 posterior branches of the external carotid?
ascending pharyngel a
posterior auricular a
what does the superior thyroid artery supply?
superior thyroid gland
what does the lingual artery supply?
inferior surface of the tongue
what does the facial artery supply?
what does the ascending pharyngeal artery supply?
pharynx and tonsils
what does the occipital artery supply?
neck and scalp
what does the posterior auricular artery supply?
scalp behind the ear
what does the superior thyroid artery give off?
superior laryngeal artery