Which of the Following Has Both Endocrine and Exocrine Activity

question 12

Multiple Choice

Which of the following has both endocrine and exocrine activity?

• A) the pituitary gland
• B) parathyroid glands
• C) salivary glands
• D) the pancreas

---

Definitions:

Actin Filaments

Thin filaments consisting mainly of the protein actin; actin and myosin filaments make up the myofibrils of muscle fibers.

Intermediate Filaments

Cytoplasmic fibers that are part of the cytoskeletal network and are intermediate in diameter between microtubules and microfilaments.

Dynein

A motor protein in cells which uses the energy from ATP to transport cellular cargo along microtubules towards the cell's nucleus.

Microtubules

Hollow, cylindrical fibers consisting of tubulin protein subunits; major components of the cytoskeleton and found in mitotic spindles, cilia, flagella, centrioles, and basal bodies.