Which hormone is correctly paired with its action? (A) oxytocin—stimulates uterine contractions during childbirth (B) thyroxine—inhibits metabolic processes (C) ACTH—inhibits the release of glucocorticoids by the adrenal cortex (D) melatonin—raises blood calcium level

Verified step by step guidance

1. Step 1: Review the provided hormone-function pairs in the image.
2. Step 2: Recall the functions of the hormones listed in the multiple-choice question.
3. Step 3: Compare the functions of the hormones in the multiple-choice question with the correct functions from the image.
4. Step 4: Identify the correct hormone-function pair from the multiple-choice options.
5. Step 5: Select the option that correctly matches the hormone with its function.

Key Concepts

Hormonal Functions

Hormones are chemical messengers produced by glands in the endocrine system that regulate various physiological processes in the body. Each hormone has specific functions, such as regulating metabolism, growth, and reproductive processes. Understanding the role of each hormone is crucial for identifying their correct actions and interactions within the body.

Oxytocin

Oxytocin is a hormone produced by the hypothalamus and released by the posterior pituitary gland. It plays a significant role in childbirth by stimulating uterine contractions during labor. Additionally, oxytocin is involved in social bonding and emotional responses, making it essential for maternal behaviors and attachment.

Endocrine Feedback Mechanisms

The endocrine system operates through feedback mechanisms that regulate hormone levels and maintain homeostasis. For instance, the release of hormones can be stimulated or inhibited based on the body's needs, such as stress or metabolic demands. Understanding these feedback loops is vital for comprehending how hormones like ACTH and thyroxine function in the body.