Endocrine II Picture Questions Flashcards
What is your diagnosis?
Parathyroid gland
What cell type is indicated?
Parafollicular cells of the thyroid. Note the pale-staining cytoplasm
Fill in the blanks.
Top: zona fasciculata
Middle: zona reticularis
Bottom: Medulla
What zone makes up the prominent clumps of cells seen in the image?
Zona glomerulosa of the adrenal cortex
Fill in the blanks.
Chief cells (top), oxyphil cells (bottom) of the parathyroid gland.
What type of cells are the large arrows pointing to?
Parafollicular cells of the thyroid gland. Note the calcitonin granules.
Name the cell type indicated. Ignore the arrows.
Follicular cell.
The cells indicated by the arrows secrete?
a) calcitonin
b) growth hormone
c) glucocorticoids
d) parathyroid hormone
e) aldosterone
D - Parathyroid hormone
They are chief cells of the parathyroid
The region indicated by the arrow can be described by which one of the following?
a) it is the zona reticularis
b) it synthesizes glucocorticoids
c) it synthesizes androgens
d) it is controlled by angiotensin II
e) it is controlled primarily by ACTH
D - Controlled by angiotensin II
The zona glomerulosa cells make aldosterone, acting on the DCT of the kidney to increase sodium resorption.
Which one of the following does NOT apply to the labeled cells?
a) synthesis of thyroglobulin
b) synthesis of calcitonin
c) synthesis of thyroid
peroxidase
d) release of triiodothyronine
e) colloid resorption
B - Synthesis of calcitonin
Parafollicular cells make calcitonin. The arrows are pointing at the follicular cells.
The cell indicated by the * can be described by which one of the following?
a) stimulated by high Ca2+ levels
b) increases osteoclast activity
c) has steroid-containing granules
d) releases parathyroid hormone
e) contains colloid droplets
A - Stimulated by high calcium levels
It is a parafollicular cell, the granules are calcitonin granules.
Gonadal-type hormones are mainly synthesized at which location?
a) A
b) B
c) C
d) D
C
Reticularis makes androgens.
Which one of the following can NOT be said of the tissue shown in this image?
a) it sequesters iodide
b) it stores thyroxine
c) it secretes thyroglobulin
d) it responds to pituitary TSH
e) it secretes triiodothyronine
B - It stores thyroxine
It releases thyroxine, does not store it.
