Flashcards in MS Neck - KISS Deck (31):
- Common Carotid
- Internal Jugular Vein
- Vagus N.
(all in the carotid sheath)
unilateral SCM contraction is called?
What lifts up the 1st rib? 2nd rib?
1st rib- Middle Scalene
2nd rib- Posterior Scalene
What is anterior to the Anterior Scalene?
anterior is the PHRENIC N.
inferior is the SUBCLAVIAN A.
What lies between the Anterior and Middle Scalene?
Brachial Plexus and Subclavian A.
What is THORACIC OUTLET SYNDROME and what are signs and causes? what is a test is positive?
Compression of structures at base of neck
Eti: pancoast tumor, cervical rib, muscle spasm
SSx: 4th & 5th digit neuropathy, neuropathy of lat. forearm
+ ADSON'S SIGN
Bifurcations of common carotid, trachea, abd aorta?
C4, T4, L4
other than bifurcation of the common carotid at C4, what is C4 a landmark for?
upper edge of THYROID CARTILAGE
C8,T1 (just think T for thyroid)
At bifurcation of Carotid Artery, there is the CAROTID SINUS and CAROTID BODY which do what?
Sinus: stretch response to BP
Body: chemoreceptors to 02
Carotid Body is innervated by?
Where does the Brachiocephalic Trunk bifurcate and into what?
---> Subclavian and Common Carotid
What lies posterior to Subclavian A?
pleura of LU
Subclavian then branches up to become the ______ which joins with the ______ to become the Basilar A.
Vertebral Artery... + Anterospinal A. ---> Basilar A.
Supraclavicular Lacerations/Trauma can cause damage to what?
- Apical Pleura, Inf. trunk of Brachial Plexus, Subclavian Vessels
External Jugular V. drains to _____ which then merges with ______ to become _______.
External Jugular V. drains to Subclavian V. which merges with the Internal Jugular V. to become the Brachiocephalic V.
If there is a tumor or neck surgery, what N can become damage that leads to voice hoarseness?
Recurrent Laryngeal N.
- innervates vocal cords, larynx, intrinsic muscles
- N. comes from Vagus N.
What innervates the diaphragm? cervical to what nerve?
C3,4,5 keeps the diaphragm alive
---> PHRENIC N.
Superior Cervical Lymph Nodes drain to? which drains what part of the body?
- everywhere except R upper extremity and R face
Blood supply to the Thyroid from?
superior and inferior thyroid A. from External Carotid A. and Thyrocervical Trunk, respectively.
Blood supply to Parathyroid?
Inferior Thyroid A. from the Thyrocervical Trunk
If the parathyroid is removed, what will happen?
How do you test for hypocalcemia?
Chvostek Sign - tap Facial N. for twitch
Trousseau Sign - BP cuff to arm for 3min, watch for contractions
Neural Crest Cells mnemonic
True vs False Vocal Cords
what type of cells?
True: stratified squamous epithelium, muscles
False: respiratory epithelium, no muscle, for resonance of voice
What does Atresia mean?
failure of apoptosis
Trachea mucosa cell type?
respiratory epithelium aka pseudostratified ciliated columnar cells
Esophagus cell type?
nonkeratinized stratified squamous epithelium
- Vagus N. - movement and secretion
lower 1/3 of esophagus is what type of muscle?
SM ... vs top part is skeletal
Myenteric - Auerbach for?