Anatomy & Physiology Chapter 13: The Endocrine System

Front

What is the function of the pineal gland?

Back

The pineal gland is involved in setting the biological clock and influencing reproductive function by secreting melatonin.

Front

What is a target cell?

Back

A target cell is a specific cell that a hormone will individually regulate, responding to the hormone's signal.

Front

What are parathyroid glands?

Back

Parathyroid glands are small endocrine glands located on the thyroid gland that produce parathyroid hormone, which regulates calcium levels in the blood.

Front

What are prostaglandins?

Back

Prostaglandins are a group of lipid-based chemicals synthesized by most tissue cells that act as local messengers, influencing various physiological functions.

Front

What are steroid hormones?

Back

Steroid hormones are hormones that are structurally related to cholesterol and are lipid soluble, allowing them to pass through cell membranes and affect target cells.

Front

What is the role of the adrenal glands?

Back

The adrenal glands produce hormones that help regulate metabolism, immune response, blood pressure, and stress response.

Front

What is the difference between steroid and nonsteroid hormones?

Back

Steroid hormones are lipid-soluble and can pass through cell membranes, while nonsteroid hormones are water-soluble and bind to receptors on the cell surface.

Front

What is the function of the thymus gland?

Back

The thymus gland is involved in the development of T-cells, which are crucial for the immune response.

Front

What is the role of the hypothalamus in the endocrine system?

Back

The hypothalamus regulates the endocrine system by controlling the pituitary gland and releasing hormones that influence other glands.

Front

What is the significance of feedback mechanisms in the endocrine system?

Back

Feedback mechanisms help maintain homeostasis by regulating hormone levels through negative or positive feedback loops.