Cervical And Facial Muscles/Nerve Innervations Flashcards
(182 cards)
Platysma
N:
CN 7
Sternocleidomastoid (SCM)
N:
Accessory (CN11)
And
Trapezius (C3, 4 supplies sensory to traps)
Cervical plexus is made up of
C1-C4
NERVES TO KNOW
Supraclavicular
Transverse cervical
Great auricular
4 suprahyoid muscles
4 infrahoid muscles
What vertebral level are the hyoid muscles found at?
Supra…
Digrastric (anterior and posterior)
Geniohyoid
Stylohyoid
Mylohyoid
Infra…
Sternohyoid
Sternothyroid
Omohyoid (omo=shoulder; has superior and inferior belly)
Thyrohyoid
C3
N: of anterior and posterior bellies of the diagastric muscle
Anterior Belly - Trigeminal nerve (CN 5)
Posterior Belly - Facial nerve (CN 7)
Brachiocephalic truck is on what side and branches into what other artery’s?
Right side
Subclavian artery and common carotid artery
Common carotid artery bifurcates into ?
External carotid artery
Internal carotid artery *starts lateral and goes medial (one of two major blood supplies to the brain = supplies 80% of blood to brain. Vertebral artery supplies 20%)
They form astemossis
Common carotid artery travels with what?
Internal jugular Vien
The thyroid gland gets blood supply from what artery?
Superior thyroid artery
Lingual artery innervates?
Tongue
Name the branches off of the external carotid artery.
“Some Angry Lady Figured Out PMS”
Superior thyroid a
Ascending pharyngeal a
Lingual a
Facial a
Occipital a
Posterior auricular a
Superficial temporal a
Maxillary a
Subclavian artery has what branches coming off?
“Vivid Images That Capture Detail”
Vertebral a (crosses in front of C6 TP = typically enters the transverse foreamen of C1-C6)
Internal thoracic a (run along internal portion of thorax) supplies ribs and intercostal muscles
Thyrocervical trunk (transverse cervical,)
Costocervical trunk (runs by Ant. Scalene)
Dorsal scapular a (meets with dorsal scapular n.)
Longus colli (deep neck flexor)
R CCA arises deep to _____________ junction from __________ _______, L CCA (longer) arises from _______ of ______ between BCT and L SCA.
R CCA arises deep to sternoclavicular jt from
brachiocephalic trunk, L CCA (longer) arises from arch of aorta b/w BCT and L SCA
Both L and R CCA ascend in _______ ______. The carotid sheath is composed of what vessels?
Carotid sheath
CCA, internal jugular v, vagus n.
CCA passes in front of the ________ _______ (anterior TP of C6) where it can become compressed
Carotid tubercle
Branches arise in the following order from external carotid artery (ECA)
Which branches are terminal branches?
- Superior thyroid a
- Ascending pharyngeal a
- Lingual a
- Facial a
- Occipital a
- Posterior articular a
- Superficial temporal a (terminal br)
- Maxillary a (terminal br)
ECA begins at what vertebral level
C3/4
What branch of ECA is smallest ?
Ascending pharyngeal a
Superior thyroid a gives off what branches?
- Anterior thyroid
- Posterior thyroid
- Infrahyoid
- SCM
- Superior laryngeal
- Cricothroid aa
Ascending pharyngeal a gives off what branches? (5)
“Pandas Prefer Playing In Mud.”
**= Remember this one if any
- Pharyngeal
- Palatine
- Prevertebral
- Inferior tympanic
- Meningeal **
Lingual a gives off what branches? (4)
“Super Dorky Snakes Dance”
- Suprahyoid
- Dorsal Lingual aa
- Subligual
- Deep lingual
Sublingual a is a branch from ________ a., and lingual is a branches from _______ a.
Lingual
ECA