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Endocrine: Thyroid

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

Butterfly shaped gland

Back (Answer)

Thyrooid

#2
Front (Question)

Lobes are connected by a narrow band called

Back (Answer)

Isthmus

#3
Front (Question)

Thyroid is regulated by

Back (Answer)

TSH (pituitary) TRH (Hypothalamus)

#4
Front (Question)

Fundamental Structural unit of thyroid gland

Back (Answer)

Thyroid Follicle

#5
Front (Question)

2 types of cell found in thyroid

Back (Answer)

Parafollicular cells Follicular cells

#6
Front (Question)

Parafollicular Cells/C-cells

Back (Answer)

Calcitonin

#7
Front (Question)

Follicular Cells

Back (Answer)

T3, T4, rT3

#8
Front (Question)

acts as preformed matrix containing Tyrosyl groups

Back (Answer)

Thyroglobulin

#9
Front (Question)

Iodide + Thyroglobulin + Tyrosine

Back (Answer)

Diodotyrosine (DIT)

#10
Front (Question)

Iodine + Thyroglobulin + Tyrosine

Back (Answer)

Monoiodotyrosine (MIT)

#11
Front (Question)

MIT + DIT

Back (Answer)

T3

#12
Front (Question)

DIT + DIT

Back (Answer)

T4

#13
Front (Question)

most abundant form of iodotyrosine

Back (Answer)

Type 1 Iodotyrosine 5-deiododinase

#14
Front (Question)

responsible for the largest contribution to circulating T3 Pool

Back (Answer)

Type 1 Iodotyrosine 5-deiododinase

#15
Front (Question)

Thyroid Hormone: Most abundant thyroid hormone Prohormone T3

Back (Answer)

T4

#16
Front (Question)

Inactive form Good Indicator thyroid secretory rate Negative Feedback TSH

Back (Answer)

T4

#17
Front (Question)

Most metabolically active Used to confirm Hyperthyroidism and T3 thyrotoxicosis

Back (Answer)

T3

#18
Front (Question)

Better indicator recovery hyperthyroidism

Back (Answer)

T3

#19
Front (Question)

First abnormality seen in cases of hyperthyroidism

Back (Answer)

T3

#20
Front (Question)

Total T3 and Total T4 measurement uses

Back (Answer)

• Radioimmunoassay • Chemiluminometric assay immunometric assay

#21
Front (Question)

Non-protein bound ; Metabolically active evaluate Subacute Hypo/Hyperthyroidism

Back (Answer)

FT3 FT4

#22
Front (Question)

Product of inner ring deiododination T4 - Inactive - Increased in Non-thyroidal illness/Euthyroid Sick syndrome - assess borderline/Conflicting resukts

Back (Answer)

rT3

#23
Front (Question)

Thyroid hormone from Hypothalamus Negative Feedback of TSH Secretion GH and PRL

Back (Answer)

TRH

#24
Front (Question)

Exhibits diurnal Secretion 2-4 am HIGH 5-6 pm LOW Secreted from Anterior Pituitary Gland Synthesized T3 and T4

Back (Answer)

TSH