Histology

Question 1

What cells are seen from top to bottom. What do 1 and 3 secrete?

Answer 1

1. Acidophils
2. Chromophobe
3. Basophil
4. Sinusoidal Capillary

Pars Distalis (Ant. Pituitary)

• A PiG Acidophils Prolactin Growth hormone
• B FLAT Basophils FSH,LH, ACTH, TSH

Question 2

What are cell types from top right to bottom left? What does #2 do?

Answer 2

1. Pituicytes
2. Herring Bodies: store ADH and Oxytocin

Question 3

What are deep blue staining things? What is organ?

Answer 3

Pineal Gland

1. Brain sand

Question 4

organ and what is line referring to?

Answer 4

Thyroid gland

• Thyroid follicle with colloid inside

Question 5

What is the arrow pointing to, what does it secrete, what organ is this?

Answer 5

Parafollicular cells in the thyroid gland secretes calcitonin

Question 6

What organs? What does 2 secrete? Labels.

Answer 6

• thyroid and parathyroid gland

1. Thyroid
2. Parathyroid: PTH
3. Capsule
4. Follicular epithelium
5. Colloid

Question 7

What are these and what do these cells secrete, what gland?

Answer 7

1. Chief cells
2. Chief cells
3. Oxyphils
4. Oxyphils

Chief cells secrete PTH

Oxyphils are unknown

Question 8

What organ, what are the layers ,and what do each secrete?

Answer 8

• Adrenal gland

1. ZG secretes mineralocorticoids Aldosterone
2. ZF secretes Cortisol and androgens (glucocorticoids)
3. ZR secretes androgens

Good For Raunchy Salty Sweet Sex

Question 9

What is this? What layers are hyperactive in addisons and cushings?

Answer 9

Adrenal gland

• Addisons: glucocorticoids and mineralocorticoids so ZG and ZF
• Cushings: Hypersecretion of ZF glucocorticoids due to adrenal carcinoma/adenoma or ACTH secreting tumor
  
  • Moon face, buffalo hump depressed immune fxn

Question 10

What is this, what cells are present?

Answer 10

• Pancreas
• Light pink balls are Islets of Langerhans
• Rest are pancreatic acini-exocrine portion

Question 11

What is this? What are the red and green cells, what do they secrete?

Answer 11

endocrine portion of pancreas-Islet of langerhans

• Red: Alpha cells secrete glucagon
• Green: Beta cells secrete insulin
• Delta cells are also in there secreting somatostatin
• F cells also secreting pancreatic polypeptide inhibitbng release of somatostatin