Which of the following have no secretory granules
Anonymous Quiz
5%
the acidophils of pars distalis
61%
adrenal cortical cells
24%
chromaffin cells
11%
basophils of pars distalis
The cells of the adrenal medulla are
Anonymous Quiz
3%
chromaffin cells only.
3%
sympathetic nerve cells only
5%
chromaffin cells and glial cells
90%
chromaffin cells and sympathetic nerve cells
Which is true about chromaffin cells
Anonymous Quiz
0%
present in adrenal cortex
3%
parasympathetic neurons.
97%
present in paraganglia
0%
secrete calcitonin
With EM the characteristic feature of zona fasiculata
Anonymous Quiz
90%
lipid droplets
3%
lysosomes
3%
rER
5%
electron dense granules
Adrenocortical cells have
Anonymous Quiz
0%
Few mitochondria
3%
large amount of rER
69%
abundant SER
28%
steroid hormone-containing secretory granules
Thyroglobulin is stored in
Anonymous Quiz
100%
the lumen of the follicles
0%
Golgi apparatus.
0%
lysosomes
0%
mitochondria
In follicular cells of the thyroid gland lysosomes are essential for
Anonymous Quiz
5%
iodination of thyroglobulin
5%
Synthesis of thyroglobulin
90%
hydrolysis of thyroglobulin into T3 + T4
0%
release of calcitonin
The colloid in thyroid follicles
Anonymous Quiz
0%
is seen only by EM
0%
usually is basophilic
7%
contains calcitonin
93%
contains thyroglobulin
The main ultrastructural features of the thyroid follicular cell is presence of
Anonymous Quiz
8%
rough and smooth endoplasmic reticulum
79%
rough endoplasmic reticulum and lysosomes
0%
few mitochondria
13%
basal secretory vesicles
Thyroid interfollicular cells secrete
Anonymous Quiz
7%
parathyroid hormone
38%
thyroxin hormone
48%
calcitonin hormone
7%
calcium
lodine is essential for the synthesis of
Anonymous Quiz
5%
parathormone
0%
calcitonin
95%
thyroxin
0%
cortisol
Normal parathyroid glands of adults possess
Anonymous Quiz
76%
oxyphil cells
11%
chromaffin cells
0%
basophil cells
13%
parafollicular cells
Oxyphil cells of the parathyroid gland are characterized by
Anonymous Quiz
78%
increase in number with age.
8%
rich in rER& Golgi apparatus.
8%
they represent degenerated chief cells
6%
secrete parathyroid hormone
👏1
Which is true about oxyphil cells
Anonymous Quiz
92%
are deeply acidophilic
0%
contain numerous rER
5%
are more numerous than chief cells
3%
smaller than chief cells
Oxyphil cells are present in the
Anonymous Quiz
98%
parathyroid gland
0%
adenohypophysis
0%
neurohypophysis
3%
pineal gland
Oxyphil cells of the parathyroid gland are acidophilic due to the presence of many:
Anonymous Quiz
25%
sER
0%
rER
0%
lysosomes
75%
mitochondria
lodination of the thyroglobulin occurs:
Anonymous Quiz
78%
extracellular in the follicular lumen
19%
intracellular inside the follicular cell
3%
ntercellular
0%
inside the capillaryi