Head and Neck Exam 1

What are the contents of the occipital triangle (2)

what are the contents of the subclavian triangle (3)

contents of the submental triangle (2)

contents of the digastric (submandibular triangle) (5)--right below the inferior boarder of the mandible

Contents of the carotid triangle (below digastric) (9)

contents of the muscular triangle (6) (below the hyoid to the sternum)

N: dorsal rami of the middle cervical spinal nerves
A: acting together (with the splenius cervicis muscles) draw head directly backward; acting separately they drive the head to the same side acting synergistically with the contralateral SCM

N: dorsal scapular nerve and ventral rami C3 and C4
A: elevates the scapula, tilts the glenoid cavity downward, helps retract the scapula

N: ventral rami of cervical nerves
A: elevates the second rib, laterally flexes and rotates the cervical part of the vertebral column (neck)

N: ventral rami of cervical nerves
A: elevates the first rib, laterally flexes and rotates the cervical part of the vertebral column (neck)

N: ventral rami of the fourth, fifth and sixth cervical nerves
A: elevates the first rib, laterally flexes and rotates the cervical part of the vertebral column (neck)

N: mandibular division of the trigeminal nerve (_____ ___) and facial nerve (____ ____)
A: elevates the hyoid or depresses the mandible

N: ansa cervicalis
A: depresses or fixes the hyoid bone

N: ____ nerve from the inferior alveolar branch of the mandibular branch of CN V
A: raises the hyoid, floor of the mouth and the tongue during swallowing or depresses the mandible

N: C1 via the hypoglossal nerve
A: raises the hyoid or depresses the mandible

4 suprahyoid muscles

N: CN 7 (facial)
A: raises the hyoid and pulls it posteriorly

4 infrahyoid muscle

N: ansa cervicalis 
A: depresses the hyoid bone after elevation during swallowing

N: ansa cervicalis
A: draws the larynx (thyroid cartilage) and hyoid downward

N: C1 via hypoglossal 
A: depresses hyoid bone but when hyoid bone is fixed it raises the larynx (i.e. when high notes are sung)

why is the mesencephalic nucleus unique?

Where are the first order nerve fibers cell bodies that are involved in the following from the face and mucous membranes:

pain and temperature
crude touch
2 point discriminative touch 
pressure
vibration

Where are the first order nerve fibers cell bodies that are involved in the following:

proprioceptive impulses from the muscles innervated from the trigeminal nerve
muscles innervated by the facial nerve
extra-ocular muscles 
tissues related to the upper and lower teeth

first order fibers associated with discriminative touch, pressure, vibration and proprioceptive sensations synapse where?

first order fibers associated with pain and temperature and some crude touch synapse where?

the spinal nucleus is the trigeminal equivalent of the

the main sensory nucleus is the trigeminal equivalent of the

What CN synapse in the spinal nucleus and for what?

what is the principle PATHWAY to the thalamus?

what is the tract that uncrossed fibers take?

where do the second order fibers synapse (third order neurons)

the fibers from the pontine and spinal nucleus concerned with unconscious proprioception proceed to the ____ via the ____ ___ ____

the superior cerebellar peduncle is the trigeminal equivalent of

where do the fibers from the motor nucleus go?

what are lower motor neurons for cranial nerves?

lower part of the nucleus supplies the

the upper portion of the nucleus supplies the

the lower portion of the face receives corticonucelar fibers from the

the upper portion of the face receives corticonuclear fibers from

what is the source of the preganglonic PS fibers in the facial and glossopharnygeal nerves?

what nerve supplies the:

mucous membrane of the maxillary sinus 
upper molar teeth (EXCEPT MB root of the first maxillary molar)
buccal bone
gingival tissue

what nerve supplies the:

mucous membrane of the maxillary sinus 
premolar teeth
MB root of the first maxillary molar
buccal bone
gingival tissue

what nerve supplies the:

mucous membrane of the maxillary sinus 
upper three anterior teeth
labial bone
labial gingival tissue

what nerve supplies the 

nasal floor
inferior meatus
adjacent mucous membrane

cranial nerves with general sensory cell bodies

cranial nerves with taste neuron cell bodies

CN derived from BA 1

CN derived from BA 2

CN derived from BA 3

CN derived from BA 4 and 6

CN thought to be derived from BA beyond 6

what is the only muscle innervated by CN IX

the lingual branch of CN IX is responsible for what two things in the posterior 1/3 of the tongue?

the pharyngeal branch of CN X supplies all muscles of the pharynx except

the pharyngeal branch of CN X innervates all muscles of the palate except which?

what is the one muscle of the larynx the recurrent laryngeal nerve doesn't supply?

cricothyroid m is supplied by the

what supplies the palatoglossus muscle of the tongue?