Exam 1 Content Support Drawings & Outlines Flashcards
What muscle is in the SCM region?
SCM
What is the fossa in the SCM region?
Lesser supraclavicular fossa
What triangle makes up the lateral cervical region of the neck?
posterior triangle
What is the posterior border of the posterior triangle of the neck?
traps
What is the anterior border of the posterior triangle of the neck?
SCM
What is the inferior border of the posterior triangle of the neck?
clavicle
What 2 triangles divide the lateral cervical region/ posterior triangle of the neck?
occipital triangle and supraclavicular triangle
What is the anterior border of the occipital triangle of the neck?
SCM
What is the posterior border of the occipital triangle of the neck?
traps
What is the inferior border of the occipital triangle of the neck?
inferior belly of the omohyoid
What is the inferior border of the supraclavicular triangle of the neck?
clavicle
What is the anterior border of the supraclavicular triangle of the neck?
SCM
What is the superior border of the supraclavicular triangle of the neck?
inferior belly of the omohyoid
What 4 triangles make up the anterior cervical region of the neck?
1) submandibular
2) submental
3) carotid
4) muscular triangle
What is the anterior border of the submandibular triangle of the neck?
anterior belly of the digastric
What is the posterior border of the submandibular triangle of the neck?
posterior belly of the digastric
What is the superior border of the submandibular triangle of the neck?
mandible
What is the inferior border of the submental triangle of the neck?
hyoid b.
What is the lateral border of the submental triangle of the neck?
anterior belly of the digastric
What is the medial border of the submental triangle of the neck?
midline of the neck
What is the superior border of the carotid triangle of the neck?
posterior belly of the digastric
What is the inferior border of the carotid triangle of the neck?
superior belly of the omohyoid
What is the lateral border of the carotid triangle of the neck?
SCM
What is the superior border of the muscular triangle of the neck?
hyoid
What is the medial border of the muscular triangle of the neck?
midline of neck
What is the superior-lateral border of the muscular triangle of the neck?
superior belly of omohyoid
What is the inferior-lateral border of the muscular triangle of the neck?
SCM
Which nerve innervates the anterior belly of the digastric and mylohyoid?
test q
CN V (trigeminal n.)
What nerve innervates the posterior belly of the digastric and the stylohyoid?
test q
CN VII (facial n.)
What is the deepest muscle of the posterior triangle?
rectus capitis lateralis
Which cranial nerves are associated with the cervical plexus but are NOT a part of it?
CN X (vagus n.), CN XI (spinal accessory n.), CN XII (hypoglossal n.)
CN XI (spinal accessory n.) spinal portion is associated with….
C1-C5 fibers of cervical plexus
CN XII (hypoglossal n.) courses with the C1 fibers of the cervical plexus to the _______________ and ______________, but veers off and ascends to tongue muscles
geniohyoid, thyrohyoid
The ansa cervicalis is motor and has 2 roots- superior at ______ and inferior at ______
C1, C2/C3
What covers the ansa cervicalis?
SCM
What lies over the SCM?
external jugular v.
What are the motor nerves in the cervical plexus?
-geniohyoid n.
-thyrohyoid n.
-superior belly of the omohyoid n.
-sternothyroid n.
-sternohyoid n.
-inferior belly of the omohyoid n.
What are the sensory nerves in the cervical plexus?
-lesser occipital n.
-greater auricular n.
-transverse cervical n.
-supraclavicular n.
What are the 3 branches of the aortic arch?
1) brachiocephalic trunk
2) left common carotid a.
3) L subclavian a.
The 3 branches of the aortic arch are the brachiocephalic trunk, left common carotid a., and L subclavian a. The brachiocephalic trunk is a branch of the aortic arch on the right side only and bifurcates into….
R common carotid a. and R subclavian a
What are the direct branches of the aortic arch?
L common carotid a. and L subclavian a.
How many subclavian regions are there?
3
What is the 1st ascending branch off of the subclavian a.?
vertebral a. (it will go through C6-C1 transverse foramen before reaching brain)
Note: vertebral VEIN will go through C7 transverse foramen but the artery will not
What is the 1st descending branch off of the subclavian a.?
internal thoracic a.
Where does the common carotid a. bifurcate?
C4
What does the common carotid a. bifurcate into?
internal and external carotid a.
Which artery is a branch of the subclavian but sometimes can be a branch off of the transverse cervical a.?
dorsal scapular a.
What are the 3 branches of the thyrocervical trunk?
test q
1) inferior thyroid a.
2) transverse cervical a.
3) suprascapular a.
What are the 2 branches of the costocervical trunk?
test q
1) deep cervical a.
2) supreme intercostal a.
The thyroid spans from….
C5-T1
What are the 2 thyroid arteries?
test q
1) superior thyroid a.
2) inferior thyroid a.
What is the first branch of the external carotid a.?
test q
superior thyroid a.
The inferior thyroid a. is a branch of the….
test q
thyrocervical trunk
The internal jugular v. unites with the _______________ to form the brachiocephalic v. (occurs bilaterally)
subclavian v.
The SVC drains into the….
R atrium
The brachiocephalic veins unite to form the….
SVC
The external jugular v. courses on top of the SCM and drains into the….
subclavian v.
The anterior jugular v. courses deep to the SCM and drains into the _________________ at the posterolateral aspect of the SCM
external jugular v.
Vertebral v. courses through the transverse foramen C1-C7 and drains into the….
brachiocephalic v.
What are the 3 veins of the thyroid?
superior, middle, and inferior thyroid v.
The superior and middle thyroid v. drain into the….
internal jugular v.
The inferior thyroid v. drains into the….
brachiocephalic v.
