Exam 3

Question 1

From superficial to deep what is the order of the fascial layers?

Answer 1

investing cervical fascia
pre tracheal fascia
pre vertebrale fascia
retropharngeal space

Question 2

which fascia layer splits to provide a sheath for trapezius & SCM & is continuous with nuchal ligament?

Answer 2

investing cervical fascia

Question 3

which fascia layer encases infra hyoid muscles?

Answer 3

pre tracheal

Question 4

which fascia layer blends with; fibrous pericardium, neck viscera & carotid sheaths also creating slings for digastric & omohyoid mm?

Answer 4

pre tracheal

Question 5

which fascia layer attaches to cranial base, ALL, endotracheal fascia?

Answer 5

pre vertebral

Question 6

which fascia later encases longs capitis/colli, scalene, deep cervical muscles?

Answer 6

pre vertebral

Question 7

what allows for free movement of the esophagus, larynx & trachea?

Answer 7

retropharyngeal space

Question 8

what are the borders of the submandibular triangle?

Answer 8

inferior border of mandible, anterior/posterior digastrics

Question 9

what are the major contents of the submandibular triangle?

Answer 9

• Submandibular gland
• Submandibular Nodes
• Hypoglossal N
• Nerve to mylohyoid
• Fascial artery & submental (deeply)

Question 10

what are the borders of the carotid triangle?

Answer 10

Superior: posterior belly digastric
Lateral: anterior border of SCM
Medial: superior belly omohyoid

Question 11

what are the contents of the carotid triangle?

Answer 11

• Common Carotid artery
• Carotid Sheath (common carotid a, internal jugular v, vagus n, asa cervicalis (lies on sheath))

Question 12

what is the border of the muscular triangle?

Answer 12

Superolateral Border: superior belly omohyoid
Medial Border: median plane
Inferolateral Border: anterior border of SCM

Question 13

what are the contents of the muscular triangle?

Answer 13

infra hyoid mm, & neck viscera

Question 14

what are the borders of the submittal triangle?

Answer 14

Inferior Border: body of hyoid bone
Lateral Border: L & R anterior bellies of digastric mm

Question 15

what are the contents of the submittal triangle?

Answer 15

mylohyoid mm
many small lymph nodes & small veins which unite to form anterior jugular vv

Question 16

what are the supra hyoid muscles?

Answer 16

Mylohyoid
anterior/posterior digastric
stylohyoid
geniohyoid

Question 17

what are the 3 things that the supra hyoid muscles have in common?

Answer 17

• form substance of the floor of the oral cavity
• anchor the hyoid so the tongue muscles attached can work
• elevate hyoid & larynx to facilitate swallowing & vocalizing

Question 18

where is the lesser supraclavicular fossa located?

Answer 18

b/w 2 heads of SCM

Question 19

why is the location of the lesser supraclvaicular fossa important?

Answer 19

inferior part of the internal jugular vein is deep in this space

Question 20

what are the boundaries of the lateral cervical region?

Answer 20

Anterior: posterior border of SCM
Posterior: anterior border of trapezius
Inferior: middle 3rd of clavicle
Apex: meeting of SCM & trapezius on superior nuchal line of occipital bone
Roof: investing layer of cervical fascia
Floor: splenius, levator scapular, posterior & middle scalenes covered w/ preverterbal fascia

Question 21

what is important about the occipital triangle?

Answer 21

spinal accessory nerve, trunks of brachial plexus, cervical plexus, transverse cervical artery courses through