Anatomy of the neck
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each of the black spaces below before clicking
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show | "Adam's apple"
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show | Hyoid bone
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The thyroid gland is divided into 3 parts: | show ๐
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The parathyroid glands are located on the __ surface of the thyroid gland | show ๐
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The thyroid gland is deep to what muscles? | show ๐
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The lobes of the thyroid gland are ____ to the trachea and larynx | show ๐
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What are the endrocrine functions of the thyroid gland? | show ๐
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How many parathyroid glands are there? | show ๐
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What are the endocrine functions of the parathyroid glands? | show ๐
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show | Nasopharynx, oropharynx, laryngopharynx
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What muscles wrap around the pharynx, superficially? | show ๐
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show | CN 10 (vagus nerve)
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The larynx connects ___ (superior) to ____ (inferior) | show ๐
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What nerve innervates the intrinsic muscles of the larynx? | show ๐
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show | Superior laryngeal branch, recurrent laryngeal nerve
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Proximal to the larynx, the recurrent laryngeal nerve becomes... | show ๐
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show | All of the intrinsic muscles of the larynx
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What condition would result from a lesion of either the recurrent laryngeal nerve or the inferior laryngeal nerve? | show ๐
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The trachea begins inferior to what structure? | show ๐
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What muscular tube is continuous with the laryngopharynx? | show ๐
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show | 1st third (striated; voluntary), 2nd third (smooth and striated), 3rd third (smooth; involuntary)
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show | Inferior laryngeal nerve (or recurrent laryngeal nerve)
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show | The interstitial space b/w cells and blood vessels
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show | Inf: fascia & skin over pectoralis major & deltoid muscles
Sup: Inferior border of mandible & skin of lower face
N: CN 7 โ cervical branch (facial n)
Act: tenses skin of neck, depresses angles of mouth, weak mandible depressor
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Sternocleidomastoid (inf, sup, N, Act) | show ๐
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Tight SCM may cause... | show ๐
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show | Sternohyoid, sternothyroid, omohyoid
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show | Inf: posterior surface of manubrium and medial clavicle
Sup: body of hyoid
N: ansa cervicalis
A: depresses hyoid
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Thyrohyoid (inf, sup, N, Act) | show ๐
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show | Inf: posterior manubrium of sternum
Sup: oblique line of thyroid cartilage
N: ansa cervicalis
A: depresses the thyroid cartilage (larynx)
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show | O: inferior belly - superior border scapula
superior belly โ intermediate tendon
I: inferior belly - inferior boarder of hyoid
superior belly โ body of hyoid
N: ansa cervicalis
A: depresses, retracts and stabilizes hyoid
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Mylohyoid (inf, sup, N, Act) | show ๐
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show | Sup: inferior mental spine of mandible
Inf: body of hyoid
N: branch of C1 via CN 12 (hypoglossal nerve)
A: pulls hyoid anterosuperiorly (widens pharynx during deglutition/swallowing)
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Stylohyoid (inf, sup, N, Act) | show ๐
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show | O: Anterior belly โ digastric fossa of mandible
Posterior belly โ mastoid notch of temporal bone
I: intermediate tendon to hyoid
N: Anterior belly โ mylohyoid n (CN 5)
Posterior belly โ CN 7
A: depresses mandible, elevates hyoid
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What structure passes between the middle and anterior scalenes? | show ๐
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What are the actions of the scalenes muscles? | show ๐
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Scalenus anterior attaches to... | show ๐
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Scalenus medius attaches to... | show ๐
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show | TPs of cervical spine (sup), 2nd rib (inf)
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show | The scapular region / UE
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show | Prevertebral muscles (deep neck flexors)
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show | Neck dysfunction, pain, cervical instability
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show | Ant: SCM
Post: trapezius
Inf: Clavicle
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show | Veins: EJV
Ateries: transverse cervical artery, subclavian artery, suprascapular artery
Nerves: brachial plexus, CN 11, cutaneous branch of CP
Muscles: omohyoid (inf belly), med/post scalenes, levator scapla, splenius capitus
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show | Medial/posterior scalenes, levator scapula, splenius capitus
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show | Inferior belly of omohyoid
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The 2 subdivisions of the posterior triangle are called... | show ๐
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show | Lat: SCM
Med: midline
Sup: mandible
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show | Superior
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The supraclavicular triangle is ___ to the inf. belly of the omohyoid | show ๐
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Contents of the anterior triangle... (muscles) | show ๐
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show | anterior and posterior bellies of digastric m, mandible
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show | *submandibular gland/duct, submandibular lymph nodes, CN 12
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Carotid triangle - Boarders | show ๐
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show | CCA, ECA,
IJV
CN 10, 11, 12, ansa cervicalis, branches of cervical plexus
Thyroid, larynx, pharynx
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show | superior belly of omohyoid, anterior border of SCM, median plane of neck (midline)
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Muscular triangle - Contents | show ๐
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Submental triangle - Boarders | show ๐
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show | submental lymph nodes
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show | Superficial
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What are the 3 branches of the external carotid artery (ECA)? | show ๐
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All 3 branches of ECA enter... | show ๐
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show | superficial
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IVJ is ___ to SCM and cutaneous nerve | show ๐
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