and CORRECT Answers
where is thyroid located - CORRECT ANSWER Anterior portion of the neck just below and
bilateral to the thyroid cartilage.
thyroid is regulator of - CORRECT ANSWER growth and metabolism
what hormones does thyroid secrete - CORRECT ANSWER thyroxine (T4) the main
hormone
triiodothyronine (T3)
calcitonin (calcium regulation)
can we feel thyroid in EO exam - CORRECT ANSWER only if it is abnormal, usually not
TSH - CORRECT ANSWER thyroid stimulating hormones relased by pituitary
TRH - CORRECT ANSWER thyrotropin released by hypothallus
feedback of hormones - CORRECT ANSWER Hypothalamus release TRH > pituitary
releases TSH > thyroid releases T3 and T4
in normal conditions T4 T3 synthesis are controlled by what feedback - CORRECT
ANSWER negative feedback
hypothalamus Thyrotropin releasing hormone (TRH) stimulates the pituitary to release
(________________), which causes the thyroid to secrete ________ - CORRECT
ANSWER thyroid stimulating hormone, T3 and T4
,if you don't have enough iodine this can cause low levels of - CORRECT ANSWER T3 and
T4, which will then increase TSH in feedback loop. we need iodine T3 and T4 to synthesis the
iodine
high TSH can indicate - CORRECT ANSWER hypothyroidism
T4 can be used to make - CORRECT ANSWER T3
conversion of T3 and T4 can be inhibited by - CORRECT ANSWER fasting steriods and
some drugs
minimum daily requirement is ___ mg of iodine - CORRECT ANSWER 75mg
thyroid - CORRECT ANSWER growth and cellular respiration
sites of action of thyroid hormones - CORRECT ANSWER cell nucleus, mitochondria, cell
membrane, adrenergic receptors
why are thyroid hormones important - CORRECT ANSWER energy synthesis, proper oxygen
consumption on cellular level, healing
calcitonin regulates - CORRECT ANSWER calcium and phosphorous levels and skeletal
remodeling
most of T3 comes from - CORRECT ANSWER deionzation of T4.
do we have moer T3 or T4 in blood - CORRECT ANSWER T4
goiters - CORRECT ANSWER symptom of either hypo or hyperthyroidism.
, Swelling of the thyroid gland
diffuse, nodular, singular, functional, or nonfunctional Simple goiters account for about 75% of
all thyroid swellings
hyperthyroidism is too much ____ and can become - CORRECT ANSWER T3 and T4,
thyrotoxicisis
hyperthyroidism more common in - CORRECT ANSWER women- puberty or menaposal
women
what can cause hyperthyroidism - CORRECT ANSWER exctopic (extra) thyroid tissue
pituitary disease
graves disease- autoimmune
autoimmune vs acquired immunodeficiency - CORRECT ANSWER autoimmune: bodies own
immune system attacks itself.
aquired immunodeficiency = HIV and can progress to aids. virus affects blood cell and immune
system gets destroyed. they become immunocompromised.
how to treat graves disease - CORRECT ANSWER radioactive iodine, remove thyroid which
will cause hypothyroidism, but they'll die if we don't treat hyperthyroidism
you cannot survive with - CORRECT ANSWER hyperthroidism thyrotoxicisis
S + S hyperthyroidism - CORRECT ANSWER exophthalmos, hyperhidrosis, tachycardia,
nervous irritable, heat intolerance, tremors, dyspnea, palpitations, warm sweaty hands
how can we differ hyperthyroidism from anxiety - CORRECT ANSWER anxiety cold sweaty
hands while hyperthyroidism is warm sweaty hands