Neuro Clhn Lect #3

Front 1

What 4 structures are located in the superficial fascia of the anterior triangle?

Back 1

Platysma muscle, Transverse cervical nerve (C2-C3), Cervical branch of CN 7, Anterior Jugular Vein

Front 2

3 Boundaries of the anterior triangle?

Back 2

inferior border of the mandible, midline of the neck, anterior border of sternocleidomastoid

Front 3

What three muscles subdivide the anterior triangle into 4 triangles?

Back 3

Anterior border of the digastric, posterior border of the digastric, superior belly of the omohyoid

Front 4

Name the 4 small triangles?

Back 4

submental, muscular, carotid, digastric

Front 5

Hyoid bone, anterior digastric and midline form what triangle?

Back 5

Submental

Front 6

What forms the floor of the submental triangle?

Back 6

Mylohyoid muscle

Front 7

What vein is formed in the submental triangle?

Back 7

Anterior Jugular Vein

Front 8

Where does the anterior jugular drain?

Back 8

External Jugular (after communicating with the contralateral AJV)

Front 9

Borders of the muscular triangle?

Back 9

Midline, Sternocleidomastoid, Superior Belly of the Omohyoid

Front 10

Sternohyoid and Superior Omohyoid lie in which triangle?

Back 10

Muscular (In Parallel)

Front 11

Thyrohyoid and sternothyroid lie in which triangle?

Back 11

Muscular (in series, deep to the superficials)

Front 12

What is the general function of the "strap muscles"?

Back 12

fix and steady the hyoid bone, swallowing and phonation

Front 13

What innervates the Thyrohyoid?

Back 13

Nerve to the thyrohyoid (C1)

Front 14

Where does the superior root of the Ansa Cervicalis come off?

Back 14

Off CN 12 (not part of the nerve)

Front 15

Where does the inferior root of the ansa cervicalis come from?

Back 15

C2-C3

Front 16

What innervates the sternohyoid, sternothyroid, and omohyoid?

Back 16

Ansa Cervicalis

Front 17

What innervates the thyrohyoid and Geniohyoid?

Back 17

C1 fibers

Front 18

Ansa cervicalis is usually behind the carotid sheath (true or False)?

Back 18

False (in front)

Front 19

What are the boundaries of the Carotid triangle?

Back 19

Sternocleidomastoid, Posteriro belly of digasrtric, superior belly of omohyoid

Front 20

Common carotid artery is located in which triangle?

Back 20

Carotid

Front 21

What bifurcates into two arteries at the upper level of the thyroid cartilage?

Back 21

Common carotid (ext an int)

Front 22

What does the carotid body do?

Back 22

Sensitive to reduced oxygen tension in the blood, or increased carbon dioxide tension - receptors reflexly increase pulse rate, blood pressure, and deapth and rate of respiration

Front 23

What innervates the carotid body?

Back 23

CN X, and Sympathetic fibers

Front 24

What does the Carotid Sinus do?

Back 24

Baroreceptors sense arterial blood pressure

Front 25

Innervation of the Carotid Sinus?

Back 25

Primarily CN IX, also X and sympathetics

Front 26

Which branch of the CCA gives branches to the Brain and Orbit?

Back 26

Internal CA

Front 27

How many arterial branches come off the ECA?

Back 27

8

Front 28

Name the three anterior branches of the ECA?

Back 28

Superior thyroid, Lingual, Facial

Front 29

Which artery courses in part with the external laryngeal nerve of CN X?

Back 29

Superior Thyroid Artery

Front 30

What artery does the superior laryngeal branch off?

Back 30

Superior Thyroid

Front 31

What nerve does the superior laryngeal artery course with?

Back 31

Internal Laryngeal Nerve of CN X

Front 32

Which artery supplies the thyroid gland?

Back 32

Superior Thyroid

Front 33

Which artery supplies the larynx at and above the vocal cords?

Back 33

Superior laryngeal

Front 34

This artery courses deep to the posterior digastric and hyoglossus and supplies the tongue?

Back 34

Lingual Artery

Front 35

The facial artery runs posterior or anterior to the digastric (posterior belly)?

Back 35

Posterior (sigmoid course)

Front 36

Which aspect of the ECA does the Ascending Pharyngeal come off from?

Back 36

Medial Aspect

Front 37

Which nerve crosses in front of the occipital artery?

Back 37

CN 12

Front 38

Which nerve does the occipital artery accompany?

Back 38

Greater occipital nerve

Front 39

What are the two terminal branches of the ECA?

Back 39

Superficial Temporal Artery, Maxillary Artery

Front 40

What are the two sensory ganglion of the vagus nerve?

Back 40

Superior ganglion (above the jugular foramen) and Inferior (nodose) ganglion (below the jugular foramen)

Front 41

What are the vagal branches from the supeior ganglion?

Back 41

Meningeal and auricular

Front 42

What are the vagal branches from the inferior ganglion?

Back 42

Pharyngeal branches, Carotid body nerve, and superior laryngeal nerve

Front 43

What nerve combines with the pharyngeal branches of CN X to form the pharyngeal plexus?

Back 43

CN 9 and Cervical Sympathetics

Front 44

Pharyngeal plexus is motor to what?

Back 44

muscles of the pharynx and palate (except stylopharyngeus and tensor veli palatini

Front 45

Which nerve is often anesthetized to allow tracheal tube intubation?

Back 45

Internal laryngeal nerve

Front 46

What kind of reflex does the internal laryngeal play a role in?

Back 46

Afferent limb of the coughing reflex

Front 47

What nerve is damaged when the quality of voice is changed?

Back 47

External laryngeal nerve

Front 48

In the neck what course does the ascendign R and L recurrent laryngeal nerves take?

Back 48

B/w trachea and esophagus and under the lower border of the inferior constrictor

Front 49

Recurrent laryngeal nerve provides sensory information (above or below) vocal cords?

Back 49

Below

Front 50

Where does the recurrent laryngeal originate from?

Back 50

Cranial nerve 11 (which becomes 10)

Front 51

What are the boundaries of the digastric triangle?

Back 51

inferior border of the mandible, anterior belly of digastric, posterior belly of digastric

Front 52

Which part of the submandibular gland is located in the digastric triangle (superficial or deep)?

Back 52

Superficial (sideways U around the mylohyoid)

Front 53

What is the relation ship of the facial artery/vein with the submandibular gland?

Back 53

Vein = superficial, artery = deep

Front 54

What is the relationship of CN12 and its course with the hyoglosus and mylohyoid muscles?

Back 54

Deep to the mylohyoid and superficial to the hyoglossus

Front 55

What does the hypoglossal nerve supply?

Back 55

muscles of the tongue that end in "glossus" except palatoglossus

Front 56

The hyoglossus muscle seperates CN 12 from this artery?

Back 56

Lingual artery (deep to the hyoglossus)

Front 57

What layer fo the deep cervical fascia splits to enclose the submandibular and parotid glands?

Back 57

Investing layer

Front 58

Why will swelling of the parotid gland with mumps produce pain?

Back 58

The gland is enclosed by the investing fascia

Front 59

Which fascia surrounds the thyroid and is located behind the infrahyoid muscles?

Back 59

pretracheal fascia

Front 60

This fascia forms the floor of the posterior triangle?

Back 60

Prevertebral fascia

Front 61

What nerve innervates the cricothyroid muscle?

Back 61

External Laryngeal Nerve

Front 62

Recurrent laryngeal nerve originates in the (Neck, Thorax, Abdomen)

Back 62

Thorax