neck fascia

Question 1

odontogenic infections

Answer 1

• can spread to cranium and/or mediastinum

- often in retropharyngeal space and danger space

Question 2

vessels and nerves that pierce the investing layer

Answer 2

• external jugular
• anterior jugular
• cervical plexus branches (lesser occipital, greater auricular, transverse cervical, supraclavicular)

Question 3

vascular fascial compartment

Answer 3

surrounded by carotid sheath

Question 4

origin of pretracheal layer superiorly

Answer 4

hyoid bone

Question 5

what does the buccopharyngeal fascia separate

Answer 5

pharynx and esophagus from prevertebral layer

Question 6

3 fascial spaces

Answer 6

• pretracheal space
• retropharyngeal space
• fascial space within prevertebral layer

Question 7

what forms a trochlea (pulley) around the intermediate tendons of the muscles in the neck

Answer 7

pretracheal fascia

Question 8

two structures surrounding the neck

Answer 8

1) superficial cervical fascia

2) deep cervical fascia

Question 9

layers of deep cervical fascia

Answer 9

• investing layer
• pretracheal layer
• prevertebral layer
• alar fascia and carotid sheath

Question 10

potential route for infection

Answer 10

deep cervical fascia (loose CT)

Question 11

inferior attachments of investing layer

Answer 11

• clavicles
• manubrium of sternum
• spine of scapula and acromion

Question 12

first fascial compartment

Answer 12

-surrounded by investing layer

Question 13

visceral fascial compartment

Answer 13

-surrounded by pretracheal layer

Question 14

super attachments of investing layer

Answer 14

• superior nuchal lines
• mastoid processes
• zygomatic arches
• inferior border of mandible
• hyoid bone

Question 15

what makes up the carotid sheath

Answer 15

• Internal jugular vein (lateral)
• common carotid artery (medial)
• vagus n (in between)
• deep cervical lymph nodes

Question 16

fascial space within prevert

Answer 16

• also known as “danger space”
• between alar fascia and prevert layer
• continuous with posterior mediastinum
• goes to diaphragm

Question 17

vertebral fascial compartment

Answer 17

-area within prevertebral layer

Question 18

investing layer surrounds which muscles

Answer 18

• scm
• trapezius
• suprahyoid mm

Question 19

retropharyngeal space

Answer 19

• between buccopharyngeal fascia and alar fascia of prevertebral
• extends to posterior mediastinum

Question 20

layer of fatty CT under the skin of the neck

Answer 20

superficial cervical fascia

Question 21

pretracheal space

Answer 21

-between investing layer and pretracheal fascia

Question 22

muscular part of pretracheal layer encloses what

Answer 22

infrahyoid mm

Question 23

what layer surrounds the scalene muscles

Answer 23

prevertebral layer

Question 24

visceral part of pretracheal layer forms a sheath around what?

Answer 24

• larynx and trachea
• pharynx and esophagus
• thyroid gland

Question 25

posterior part of pretracheal layer

Answer 25

buccopharyngeal fascia