Microanatomy Knowledge stuff

What is the structure of a bronchus?

Airway WITH cartilage and ciliated epithelium> May have mucous secreting goblet cells

What is the structure of a bronchiole?

small airway without cartilage

What is an alveolus?

small pocket lined by pneumocytes (type I and type II). It is the place where actual air exchange takes place!

What are alveolar ducts?

looks like several alveoli combined

What is present in the portal triad of the liver?

1. bile duct

2. hepatic arteriole

3. hepatic portal vein

True/false- blood and bole flow in opposite directions

TRUE

What are the two parts of the pancreas?

exocrine and endocrine

What is the structure of the intestinal villi?

1. Mucosa (epithelial cells goblet cells, proliferation)

2. muscularis mucosa

3. submucosa

4. tunica muscularis

What does the endocrine pancreas produce?

insulin and glucagon

What does the exocrine pancreas produce?

digestive enzymes

What is the lamina propria?

supportive tissue in the villi

What structures are found in the kidney?

How can you differentiate between the cortex and the medulla of the kidney?

There is a big blood vessel in between the two

How can you differentiate between the PCT and DCT?

DCT has thinner epithelium and a more evident lumen

90% of what we see in the cortex is ______________

PCT

What are the three layers of the adrenal cortex?

1. Glomerulosa

2. Fasciculata

3. Reticularis

What do each of the layers of the adrenal cortex produce?

1. glomerulus = mineralocorticoids

2. fasciculata = glucocorticoids

3. reticularis = sex hormones

Salt, sugar, sex- the deeper you go the better it gets

What does the adrenal medulla produce?

epinephrine and norepinephrine

What structures are present in the Thyroid?

1. follicles

2. colloid

3. parathyroid