L14 - Adrenal Gland part 3 Flashcards
1
Q
Medulla arises from which embryonic structure
A
ectoderm
2
Q
catecholamines are produced by what cells and where
A
- chromatin cells
- in adrenal medulla
3
Q
Describe what occurs during a stressful situation
A
- sympathetic fibre stimulation
- depolarisation of adrenal-medullary chromaffin cells
- secretion of norepinephrine and epinephrine into blood stream
4
Q
chromaffin cell tumour
A
pheochromocytoma
5
Q
classic triad of symptoms for adrenal pheochromocytoma
A
- episodic headache
- generalised sweating
- tachycardia
6
Q
what are paragangliomas ?
A
- extra adrenal pheochromocytoma’s
- RARE
7
Q
neurofibromatosis type 1
A
- familial tumour
- autosomal dominant with mutations in NF1 GENE
- skin tags
- cafe-au-lait spots
- bony abnormalities
