Neck Flashcards
Midline elevation created by thyroid cartilage
Laryngeal prominence
Depression on the superior border of laryngeal prominence
Thyroid notch
Groove located upon superior border of manubrium between clavicular heads
Suprasternal (jugular Notch)
This fossa serves as a pressure point to decrease bleeding of the upper extremities
Supraclavicular fossa
Superficial muscle innervated by the cervical branch of facial
Platysma
covering supra and infrahyoid muscles
Infrahyoid fascia
Fascia covering the thyroid, parathyroid glands, trachea and esophagus
Pretracheal fascia
Houses the carotid a and v, vagus n.
Carotid sheath
Covering vertebral musculature
Prevertebral fascia
Anterior border of the posterior triangle
Sternocleidomastoid muscle
Posterior border of the Posterior Triangle
Trapezius
Inferior border of the Posterior Triangle
Clavicle
Roof of the posterior triangle
Platysma
Floor of the posterior triangle
Deep fascia and scalene muscles
Vein that is external to the sternocleidomastoid
External Jugular vein
Distension of the jugular vein indicates what?
Cardiac disease
Drains into subclavian vein
External jugular vein
Joins the subclavian vein to for the brachiocephalic vein bilaterally
Internal jugular vein
Takes blood from the jugular veins to the superior vena cava
Brachiocephalic vein
Inserts into the lateral surface of the mastoid process; lateral half of the superior nuchal line
Sternocleido mastoid
Sternal head originates in the anterior surface of the manubrium
Sternocleido mastoid
Clavicular head originates in the superior surface of medial 1/3rd of clavicle
Sternocleido mastoid
Originates in the medial third of the suprior nuchal line, external occipital protuberance, nuchal ligament, spinous process of C7-T12 vertebra, lumbar and sacral spinous processes
Trapezius
I: lateral third of clavicle, acromion, and spine of the scapula
Trapezius
N: spinal root accessory (CN XI; Motor); C2-C3 (pain, proprioception)
Trapezius m.
Spasm of the sternocleidomastoid muscle
Torticollis
An area halfway along the posterior border of the SCM muscle where the sensory portion of the cervical plexus emerges
Erb’s point
From ventral rami of C2 and sometimes 3: cutaneous to mastoid process
Lesser occipital
From vental rami of C2-3; cutaneous to area around the ear
Greater auricular
From Ventral rami of C3-4; cutaneous to area over the clavicle
Supraclavicular
What are the sensory points that emerge from erb’s point
lesser occipital Greater auricular Transverse Cervical Supraclavicular Accessory (CNXI)
Erbs point is found in what triangle
occipital triangle
What are the two triangles of the posterior triangle?
Occipital Triangle
Supraclavicular Triangle
Boundaries of the Occipital triangle
Sternocleidomastoid, trapezius, inferior belly of omohyoid
Boundaries of the Supraclavicular triangle
Sternocleidomastoid, clavicle, inferior belly of omohyoid
O: anterior tubercles of transverse processes of C3-6
Anterior scalene
I: Scaling tubercles of 1st rib (of Lisfranc)
Anterior scalene
N: C4-6
Anterior Scalene
O: posterior tubercles of transverse processes C2-7
Middle Scalene
N: C3-8
Middle Scalene
I: Upper surface of 1st rib
Middle Scalene
Largest and longest scalene
Middle Scalene
O: posterior tubercles of transverse processes of C4-6
Posterior Scalene
I: Upper surface of 2nd rib
Posterior Scalene
N: C5-7
Posterior Scalene
Motor portion of the cervical plexus lies deep to the sensory portion
Motor portion
The motor portion of the cervical plexus makes up the ______
Ansa cervicalis
The ansa cervicalis is composed of what two parts
C1 ventral ramus (superior root)
C2 and C3 Rami (inferior Root)
Provides motor innervation to the thyrohyoid and geniohyoid muscles
C1 ventral ramus (superior root)
Nerves that come off the ansa cervicalis
N. to Omohyoid (superior belly)
N. to Sternothyroid
N. to Sternohyoid
N. to Omohyoid (inferior belly)
Provides innervation to the diaphragm
Phrenic N.
Cord segments to the phrenic nerve
C3-C5
The ventral ramus of C1 runs along with ____ before joining ansa cervicalis and giving of nerve to thyrohyoid and geniohyoid
Hypoglossal nerve
Anterior border of the anterior triangle of the neck
Anterior median line
Posterior border of the anterior triangle of the neck
Sternocleidomastoid
Superior border of the anterior triangle of the neck
Inferior border of the mandible
Apex of the anterior triangle
Jugular notch
Roof of the anterior triangle
Platysma m.
Floor of the anterior triangle
Pretracheal fascia
The suprahyoid muscles function to ___________ during swallowing and also during vocalization.
raise the hyo-laryngeal complex
assist in depression of the mandible
mylohyoid
geniohyoid
Anterior belly of digastric
What happens to the infrahyoid muscles during swallowing
Infrahyoids relax
What happens to the suprahyoid muscles during swallowing
Suprahyoids contract along with the jaw elevators
What happens to the infra and supra hyoid muscles during jaw opening
Infra and supra hyoid muscles contract to stabilize the hyoid bone
What are the contents of the submandibular triangle
Submandibular salivary glands Facial vein Submandibular lymph nodes Facial artery Hypoglossal nerve
The anterior triangle is further divided into what 4 triangles
Submandibular triangle
Carotid triangle
Submental triangle
Muscular Triangle
The submental triangle is formed by what
Left and right anterior bellies of the digastric muscles and hyoid money
What makes up the floor of the submental triangle
mylohyoid muscle
What is housed in the submental triangle
submental lymph nodes
Boundaries of the muscular triangle
Midline, hyoid, superior belly of omohyoid M. and lower anterior border of sternocleido mastoid
The thyroid has 2 lobes that are connected by the _____
isthmus
Remnant of the embryological thyrogolossal duct
Pyramidal lobe
Takes part in the control of calcium and phosphorus homeostasis
Parathyroid glands
Boundaries for the carotid triangle
Superior belly of omohyoid muscle
Posterior belly of digastric
sternocleidomastoid
Contents of the carotid sheath
Internal jugular vein, common carotid artery, internal carotid artery, and vagus nerve
How many brachiocephalic arteries are there
Only one (Right side)
How many brachiocephalic veins are there
Two
Three Aortic arches
Brachiocephalic trunk
Left common Carotid A
Left subclavian artery
Sensory innervation from the carotid body and sinus is from what?
Glossopharyngeal N.
Gives rise to superior laryngeal A
Superior Thyroid A
Pinned down by Hypoglossal N.
Occipital A
T/F Deep cervical nodes are palpable and do not require imaging
False- the deep cervical nodes are nonpalpable
Lymph from anterior neck and face drain into what two structures
Superficial Cervical nodes
Deep cervical nodes
Interruption to the sympathetic chain results in what syndrome
Horner’s syndrome
VITC and sometimes D stands for what?
Vertebral A Internal Thoracic A Thyrocervical trunk Costocervical trunk Dorsal Scapular A
Arteries of the Thyrocervical Trunk
Inferior thyroid a.
Transverse Cervical A
Suprascapular A
Ascending Cervical A
Parts of the Costocervical trunk
Supreme intercostal A.
Deep cervical A