Face and Neck A&P Flashcards
saliva is mostly ____, _____, and _____
mostly water, electrolytes, and digestive enzymes
3 paired groups of salivary glands
- parotid glands
- submandibular glands
- sublingual glands
largest salivary glands
parotid
parotid glands are anterior to the ____ and wrap around the _____
anterior to the ears
wrap around the mandibles ramus
the parotid gland is separated into ___ anatomic lobes
3
the main duct of the parotid glands
Stensen duct
salivary glands located below the jaw
submandibular glands
submandibular glands are drained by the _____
Wharton duct
smallest salivary glands
sublingual glands
the sublingual glands are located
under the tongue and anterior to the submandibular glands
pyramidal lobe is
superior extension of the isthmus (left side)
SAG measurement of thyroid
4 to 6 cm
TRV measurement of thyroid
1 to 2 cm
AP measurement of thyroid
2 to 3 cm
isthmus AP measurement
2 to 6 mm
enlarged isthmus measurement
greater than 1 cm
____ lobe of the thyroid is typically longer
right
3 muscle landmarks of the thyroid
- strap muscles
- sternocleidomastoid muscle
- longus colli muscles
3 strap muscles
- sternothyroid
- sternohyoid
- omohyoid
hypothalamus produces ______ which controls the release of ______ by the anterior pituitary gland
thyroid-releasing hormone
thyroid-stimulating hormone (TSH)
____ and ____ aid in the metabolism of fats, proteins, and carbs
thyroxine (T4) and triiodothyronine (T3)
____ is responsible for removing calcium from the blood and stores in the bones
calcitonin
thyroid utilizes ____ to manufacture its hormones
iodine
3 thyroid hormones
T4
T3
calcitonin
___ and ____ are lateral to thyroid
CCA and internal jugular vein
first branch of the ECA
superior thyroid artery
inferior thyroid artery is a branch of the _____ of the subclavian artery
thyrocervical trunk
superior and middle thyroid veins drain into the _____
internal jugular vein
inferior thyroid vein drains into ____
innominate veins
parathyroid glands are ____ to the thyroid
posterior
normal parathyroid measurements
5 mm x 3 mm x 1 mm
stimulate cells to remove calcium from bone and raise calcium levels in the blood
parathyroid hormone (PTH)
best transducer to scan salivary glands
high frequency linear
when dilated, the ducts of the salivary glands appear ___
anechoic
shape of parotid glands
SAG = elliptical
TRV = round
shape of sublingual glands
round
shape of submandibular glands
triangular
best transducer to scan thyroid
6 to 15 MHz linear
indications of thyroid ultrasound (8)
- palpable neck mass
- enlarged thyroid
- abnormal areas in a nuclear medicine study
- differentiate between cystic and solid masses
- assist in fine-needle biopsy
- abnormal T4 and T3 levels
- screening for thyroid cancer
- follow up of suspected benign lesions