Flashcards in The neck Deck (31):
How many cervical vertebrae are there?
What is the vertebrae prominens?
How do the transverse processes of C3-6 differ from the other C vertebrae?
Broader and cupped to support spinal nerves
Where re the prevertebral and paravertebral muscles found?
Prevertebral anteriorly, paravertebrally laterally
Describe location of the scalenus anterior
Anterior tubercles C3-6 -> scalene tubercle of 1st rib
What passes between the scalenus anterior and the scalenus mass?
Subclavian vessels and nerves of the brachial plexus
What innervates the scalenes?
Ventral rami of C5&6
What other lateral muscles are there in the neck?
Scalene mass, splenius muscles, levator scapulae
What plexuses do the cervical nerves form?
C1-C4= cervical plexus
C5-T1= brachial plexus
Where is the superior cervical ganglion of the sympathetic chain found?
Opposit C2 inbetween scalenus anterior and prevertebral muscles
What is the stellate ganglion and where is it found?
Inferior cervical ganglion of sympathetic chain fused with the 1st thoracic ganglion
In front of the neck of the 1st rib
How does sympathetic supply get into the head and brain?
Via the sympathetic plexus that travels with the internal and external carotid arteries
What are the rami and what does the phrenic nerve supply?
C3, 4&5, supplies diaphragm
Where does the carotid artery bifurcate?
At level of C3
What are the branches of the external carotid artery?
Some angry lady figured out PMS-
Superior thyroid, ascending pharyngeal, lingual, facial, occipital, posterior auricular, maxillary, superficial temporal
What s found in the carotid sheath?
Internal carotid artery, vagus nerve, internal jugular vein
Where does the inferior thyroid artery arise from?
From the subclavian artery via the thyrocervical trunk
Where does the superior thyroid artery arise from?
Common carotid via the external carotid
How is the path of the inferior thyroid vein different from the superior and middle?
By passes internal jugular vein and enters straight into brachiocephalic vein
Describe the parathyroid glands
4 the size of a pea
Located close to the posterior surfaces of the lateral lobes of the thyroid gland
Where does the omohyoid attach?
Hyoid bone->intermediate tendon->superior border of scapula
Name the 2 deep infrahyoid muscles
Thyrohyoid above and sternothyroid below
What are the two superficial infrahyoid muscles?
Sternohyoid (medially) omohyoid (laterally)
What innervates the infrahyoid muscles
The ansa cervicalis (C1-C3)
Thyrohyoid & geniohyoid are innervated by C1+hypoglossal nerve
Action and innervation of trapezius
Upper fibres elevate scapula
Middle fibres retract scapula
Lower fibres depress scapula
Rotation of scapula
Actions and innervation of sternocleidomastoids?
Spinal accessory nerve
Tilts head to shoulder on same side
Turns face towards opposite side
Draws head forwards
Borders of posterior triangle
Trapezius, sternocleidomastoid, clavicle
Borders of anterior triangle
midline of neck, sternocleidomastoid and inferior border of mandible
Apex is jugular notch
What does the muscular part of the anterior triangle contain?
Infrahyoid muscles and thyroid gland
Name the superficial cervical lymph nodes
Occipital, posterior auricular, preauricular, submandibular and submental
Generally found surrounding external jugular vein