Chemical Coordination and Integration

Hormones produce their effects by acting on:

1. Any cell in the body
2. Target cells with specific receptors
3. Only blood cells
4. Only nerve cells

Which hormone increases blood glucose concentration by stimulating glycogen breakdown?

1. Insulin
2. Calcitonin
3. Glucagon
4. Oxytocin

Which hormone is secreted by the anterior pituitary to stimulate body growth?

1. Growth hormone
2. Thyroxine
3. Insulin
4. Aldosterone

Which endocrine gland secretes parathyroid hormone (PTH)?

1. Thyroid gland
2. Adrenal gland
3. Parathyroid gland
4. Pituitary gland

Which hormone is responsible for milk ejection after childbirth?

1. Prolactin
2. Oxytocin
3. Estrogen
4. Progesterone

Which hormone is secreted by the pineal gland?

1. Melatonin
2. Oxytocin
3. Vasopressin
4. Cortisol

The endocrine portion of the pancreas is known as:

1. Acini
2. Islets of Langerhans
3. Hepatic lobules
4. Nephrons

Which hormone promotes calcium deposition in bones by lowering blood calcium levels?

1. Parathyroid hormone
2. Calcitonin
3. Aldosterone
4. Cortisol

Diabetes mellitus is mainly caused by deficiency of:

1. Glucagon
2. Growth hormone
3. Insulin
4. Thyroxine

Which hormone regulates the body's basal metabolic rate?

1. Oxytocin
2. Thyroxine
3. Prolactin
4. Aldosterone

Which hormone is commonly called the "emergency hormone"?

1. Insulin
2. Thyroxine
3. Adrenaline
4. Calcitonin

Which hormone stimulates the thyroid gland to release thyroxine?

1. Growth hormone
2. Adrenocorticotropic hormone (ACTH)
3. Thyroid-stimulating hormone (TSH)
4. Follicle-stimulating hormone (FSH)

Which endocrine gland is located on top of each kidney?

1. Thyroid gland
2. Pituitary gland
3. Adrenal gland
4. Pineal gland

Which hormone is responsible for lowering blood glucose levels?

1. Glucagon
2. Insulin
3. Adrenaline
4. Cortisol

Which of the following is known as the "master gland" of the human endocrine system?

1. Thyroid gland
2. Adrenal gland
3. Pituitary gland
4. Pancreas