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what lymph nodes are in the pericervical collar?
- occipital
- mastoid/retro-auricular
- parotid
- buccal
- submental
- submandibular
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what do the posterior triangle lymphs follow?
external jugular vein
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what do the anterior triangle nodes follow?
anterior jugular vein
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where do all superficial cervical nodes drain?
deep cervical nodes
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what do the deep cervical nodes follow?
internal jugular vein
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what is the sentinel node for thyroid cartilage?
Prelaryngeal (delphian)
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What does the right lymphatic duct receive lymph from?
right half of head, neck, thorax, and right upper limb only
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what nodes are effected in tonsillitis?
jugulodigastrict/ tonsillar
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what is Virchow's node/ trosier's sign?
supraclavicular node (enlarged by abdominal area)
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what node is related to the tip of tongue, central lower lip, floor of mouth, teeth and cheek?
Submental
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What is used to produce thyroxine and triiodothyronine by the thyriod gland?
iodine
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What guides the thyroid gland?
pituitary gland (TSH)
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What do the nasoal cavity and sinuses, tongue, salivary glands, upper and lateral lower lip gums, cheek drain into?
submandibular lymph node
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What supplies blood to the thyroid gland?
superior and inferior thyroid arteries
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What drains blood from the thyroid gland?
superior, middle, inferior thyroid veins
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what disorder has elevated thyroid hormones and low TSH?
Hyperthyroidism
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What is the auto immune disease associated with over-production of thyroid hormone?
Grave's disease
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What is often caused by low iodine diet?
hypothyroidism
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What is the auto-immune disease that is associated with the destruction of thyroid gland?
Hashimioto's disease
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What is the main type of approximately 80 percent of all thyroid cancers?
papillary carcinoma
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What is the main function of parathyroid glands?
regulate calcium and phosphate balance
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what is associated with kidney stones, osteoporosis, fatigue, memory loss, and depression?
- hyperparathyroidism
- (hypercalcemia)
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What attaches to the arytenoid cartilage?
- vocal ligaments
- intrinsic muscles of larynx
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What are the two joints of the larynx?
- Cricothyroid joint
- cricoarytenoid joint
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What is the function of the cricothyroid joint?
rotation of thyroid cartilage about horizontal axis
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What are the three cavities of the larynx from superior to inferior?
- Vestibule (laryngeal inlet to vestibular fold)
- Ventricles (vestibular folds to vocal folds)
- Infraglottic cavity (vocal fold to inferior border of cricoid cartilage)
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What extrinsic muscles depress the larynx?
- omohyoid
- sternohyoid
- sternothyroid
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What extrinsic muscles elevate the larynx?
- Thyrohyoid
- stylohyoid
- mylohyoid
- digastrict
- stylopharyngeus
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What are all intrinsic muscles except the cricothyroid muscle innervated by?
recurrent laryngeal nerve
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What is the only abductor of the intrinsic muscles of the larynx?
posterior cricoarytenoid (widens rima glottis)
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What is the action of the lateral cricoarytenoid m.?
- Abduction
- Closes rima glottis
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What is the only intrinsic muscle innervated by the laryngeal nerve?
Cricothyroid m.
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What is the action of the Vocalis m.?
Relaxer (shortens cords)
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What laryngeal muscle opens the laryngeal inlet?
Thyroepiglottic m.
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What drains the region inferior to the vocal folds?
inferior deep cervical lymph nodes
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