Neck part 1 Flashcards
What are the bones of the neck
- hyoid
- cervical vertebra
- manubrium
- clavicles
What are all the Regions and trigales of the neck
slide 3- draw out
Where can the hyoid bone be found
level of C3
- between the mandible and thyroid cartilage
What is in the superficial fascia of the neck
- cervical subcutaneous fascia
= contians the platysma
and is between the deep and skin of the neck
what is in the deep fascia of the neck
1 investing
2 pretracheal
3 prevertebral
4 carotid sheath
What is in the investing layer
- it contian both traps and scm m.
- is called the 4 corners as it hold those muscles in the four corners of the neck
- and has a superior and inferior attachments
what is the superior attachment for the investing layer of the deep fasica
msz mch
- mastoid process
- superior nuchal line of o.b.
- zygomatci arch
- mandible
- cervical ver. - sp
- hyoid bone
what is the inferiro attachment for the investing layer of the deep fasica
scam
- spine of scap
- clavicles
- acromion
- manubrim
What is the suprasternal space
the space between the 2 layers of attachment
What is in the pretracheal layer of the deep fascia of the neck
- this is very thin
- extending down into the thoracic to form the pericardium that goes around the heart
- also go up to create the pully or trochlea for the digastric m.
- encloses the trachea and the infrahyoid m.
what is in the prevertebral layer of the deep fascia of the neck
- from the base of the skull to the superior mediastinum, level of 3rd thoracic v. and it fuses w/ ALL
- form part of th etubular sheath that covers the v. c. and the prevertebral m.
what is in the carotid sheath layer of the deep fascia of the neck
- extention of the pretracheal layer
- and is from the cranial base to root of the neck
What is in side the carotid sheath
- common carotid a
- IJV
- vagus n cn x
- sns fibers
- carotid sinus, body
- lymph nodes
what is a key landmark in the neck
the SCM which divides the neck into anterior and lateral regions along w/ anterior and posterior triangles
what is the lesser supraclaviualar fossa
the scm separates at inferior attachment to form this
What are the regions of the neck
- scm
- posterior
- lateral — this is the posterior triangle
- anterior — this is the anterior triangle
What does the SCM contain
- EJV
- Great auricular n( c2-3)
- transverse cervical n. (C2-3)
What are the posterior regions borders
the posterior to anterior border of the traps
what does the posterior region contain
- the traps
- subocciptial region
- cutaneous branch of poster rami of the cervical spinal n.
What are the lateral regions borders
scm
traps
clavicle
what are the subdivision of the lateral region
- occipital triangle
- suprclavicular triangle
what creates the subdivision of the lateral region
the omohyoid inferior belly creates the regions
what is in the occipital triangle
Pat L pot
- Part of the external jugular v
- Accessory n CN xi
- transverse cervical a.
- lymph nodes
- Posterior branches of cervical plexus
- occipital a.
- truck of the brachial plexus
What is in the supraclavicular triangle
Liss
- Lymph nodes
- Inferior EJV
- Subclavian v
- Subclavian a— 3rd part
- Suprascapular a
What are the muscles of the lateral region
- splenius capitis
- levator scapulae
- middle scalene
- posterior scalene
- anterior scalene
what are the arteries of the lateral regions
- occipital a
- suprascapular a
- transverse cervical a
- thyrocervical trunk lateral portion
- 3 part of the subclavain a
how many parts does the subclavain a have
3
what is in part 1 of the subclavain a
- from origian to medial border of the anterior scalene
- vertebral a ( brian)
- internal thoraic a( thorax, thoracic wall,and abd wall)
- thyrocervical trunk
what is in part 2 of the subclavain a
- posterior to anterior scalene
- costocervical trunk ( supreme intercostal a to first 2 intercostals and deep cervical a to deep cervical m.)
- *dorsal scapular
what is in part 3 of the subclavain a
- from lateral border of anterior scalene to outer border of first rib
- *dorsal scap a ( this is the main veration for this )
- *suprascapular a
What can be found in the thyroicervical trunk
- transverse cervical
- ascending cervical
- suprascapular ( can also come from the 3 part, m. and scapular joint)
- inferior thyroid ( thyroid)
what are the division of the transverse cervical a
- superfical that runs with the accessory n to the traps
- deep branch is the dorsal scapular a. and can come from part 2 and 3 and runs with the n. to the levator and rhomboids
- in general: muscles lateral cervical region
What are the veins of the lateral regions
- ejv
- subclavian
- brachiocephalic
what makes up the EJv
- posterior auricular v
- retromandibular v
- then empties into the subclavian v
what makes up the brachiocephalic
the comiing together of the subclavian and the IJV
What are the nerves of the lateral cervical region
- accesory n - cn x
- roots/ trunks of the brachial plexus
- suprascapular n.
- anterior rami c1-c4
- branches of the cervical plexus
where do the cutaneous nerves of the cervical plexus come out of
the nerve point of the neck ( erbs point ) that comes out of the SCM m.
- lesser occipital
- great auricular
- transverse cervical
- supraclavicular
What are the cervical plexus nerves
Go spat
Great auricular O(lesser) occipital Supraclavicular Phrenic n Ansa cervical Transverse cervical
What is the Great auricular n
c2-c3
- skin of and below the ear
what is the lesser occipital n
c2
skin behind the ear
what is the supraclavicular n
c3-4
skin root of neck and chest shoulder
what is the phrenic n.
c3,4,5 ( mostly 4)
– accessory phrenic n come with the addtion of c5 later on through the subclavain v.and joins at the root of the neck
what is the ansa cervicalsi
C1-3
- -supeior root- c1-2 and runs with hypoglossial n and meet with c3
- -inferior root is c2-c3
** the inferior and superior form to create this nerve
what is the transverse cervical
c2-3
skin anterior neck
