Glands And Endocrine Tissues

Question 1

Two types of glands

Answer 1

Endocrine (no ducts)

Exocrine (ducts)

Question 2

Endocrine glands

Answer 2

Secrete directly into blood
secrets hormones

Example

• pituitary gland
• thyroid gland
• parathyroid gland

All epithelial cells secrete the hormones in the gland

Question 3

Exocrine

Answer 3

Secrete into location or region of body via duct secrete mostly enzymes or lubricants

Examples

• Salivary gland
• Pancreas
• Mammary l
• sweat glands
• Sebaceous
• Lachrymal

Only cells at apex secrete

Question 4

Branching or elongation

Answer 4

• FGF10 released by immaturefibroblasts (mesenchymal stem cells)
• epithelial cells move towards the signal

Two different fates:

1. Tubule elongation (growth factor one active)
2. Tubule branching (growth factor 2 active)

Question 5

Classifying glands

Answer 5

1. mesocrine secretion
2. Apocrine secretion
3. Holocene secretion

Question 6

Merocrine secretion

Answer 6

Fusion of resides with apical membrane

A form of exocytosis