Lecture 6 - Endocrine Tissues Flashcards
1
Q
Name the 2 hormones released by the thyroid
A
T3
T4
2
Q
What is a benign cancer of glands called?
A
Adenoma
3
Q
What is a malignant tumour of a gland called?
A
Adenocarcinoma
4
Q
Around exocrine duct:
What are the lighter coloured cells and which are the darker coloured ones?
A
Lighter coloured = mucus secreting
Darker coloured = serum like substance
5
Q
How are EXOCRINE glands formed from epithelial cells?
A
- Growth signal is received at the epithelial cell.
- This causes proliferation and extracellular protein degradation enzymes are produced
- Epithelial cells invade space created
- Central cells begin to die off to begin to produce duct.
6
Q
How are ENDOCRINE glands produced?
A
- Growth factors received at epithelial cell
- Causing proliferation of cells and release of degradation enzymes
- Epithelial cells invade space made by enzymes
- Production of angiogenic factors to stimulate blood vessel growth in and around the epithelial cells
- Link to mother cells broken through apoptosis
7
Q
Name 2 products of EXOCRINE secretion by the Pancreas:
A
Lipase - hydrolyses fats
Amylase - hydrolyses starch
Elastase - breaks down elastin
