Catecholamines and Their Mode of Action

Q.

Which part of the body produces the hormone erythropoietin?

1. The cells of rostral adenohypophysis

2. Alpha cells of pancreas

3. The cells of bone marrow

4. Juxtaglomerular cells of the kidney

Q. Arrange the hormones hCG, LH, FSH, and relaxin in sequence of their secretion in pregnant women.Mention their source and function. [5]

Q.

What is LH surge?

Q. Which of the following statements is correct?

1. Catecholamines stimulate the breakdown of glycogen resulting in an increased concentration of glucose in blood.
2. Prolonged hypoglycemia results from a complex disorder called diabetes mellitus.
3. The juxtaglomerular cells of the kidney produce a peptide hormone called renin, which stimulates erythropoiesis.
4. The atrial wall of our heart secretes a hormone called atrial natriuretic factor (ANF), which causes the constriction of blood vessels.

Q.

What are the corticoids that regulate the electrolyte and water balance in the body called?

Q. _____________ is an amino acid derivative hormone.

1. Insulin
2. Epinephrine
3. Thyroid hormone
4. Cotisol

Q.

Which hormones are secreted at the time of stress or emergency?

Q.

What is the function of the relaxin hormone?

1. Relax uterus

2. Relax ovaries

3. Relax fallopian tubule

4. Relax pubic symphysis

Q.

Does ADH increase blood pressure?

Q. Some glands produce hormones that stimulate other endocrine glands. Which of the following hormones specifically acts to trigger secretion of hormones by another endocrine gland?

1. Thyroxine
2. ADH
3. ACTH
4. Progesterone

Q.

Secretin hormone is secreted by and stimulates?

Q. On feeling the tremor of an earthquake, there was a sudden panic. The heartbeat of a man who was trying to escape from the building suddenly increased. Which hormone is responsible for this sudden increase in heart rate during emergency situtation?

1. Thyroxine
2. Adrenaline
3. Parathyroid hormone
4. None of the above

Q.

Why do TSH levels in pregnant women need to be monitored?

Q. Identify from the following, a hormone produced from the pituitary gland in both males and females but is mainly functional only in females.

1. Vasopressin
2. Relaxin
3. Prolactin
4. Somatotrophin

Q. Hormone produced against inflammatory reaction is

1. Glucocorticoid
2. Epinephrine
3. Mineralocorticoid
4. Nor-epinephrine

Q. Which hormone is known as the emergency hormone in our body?

1. Insulin
2. Adrenaline Hormones
3. Androgen
4. Oxytocin and vasopressin

Q. Which of the following is a water soluble hormone?

1. Thyroxine
2. Testosterone
3. Cortisol
4. Epinephrine

Q. Fight-or-flight reactions cause activation of.

1. The kidney, leading to suppression of reninangiotensin-aldosterone pathway
2. The parathyroid glands, leading to increased metabolic rate
3. The adrenal medulla, leading to increased secretion of epinephrine and norepinephrine
4. The pancreas leading to a reduction in the blood sugar levels

Q. A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro-hormonal control system?

1. Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal cortex
2. Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal medulla
3. Neurotransmitters diffuse rapidly across the cleft and transmit a nerve impulse
4. Hypothalamus activates the parasympathetic division of brain

Q. Parkinson's disease (characterized by tremors and progressive rigidity of limbs) is caused by degeneration of brain neurons that are involved in movement control and make use of neurotransmitter:

1. Norepinephrine
2. Acetylcholine
3. GABA
4. Dopamine

Q.

Is it possible to live without hypothalamus?

Q. Mary is about to face an interview. But during the first five minutes of the interview, she faces sweating, increased rate of heartbeat, breathing, etc. Which hormones are responsible for her restlessness?

1. Oxytocin and Vasopressin
2. Insulin and glucagon
3. Estrogen and Progesterone
4. Adrenaline and Noradrenaline

Q.

Which hormone is produced in conditions of stress?

1. Thyroxine

2. adrenaline

3. oxytocin

4. Insulin

Q.

State whether the following statements are true or false.

The emergency hormone produced by adrenal gland is epinephrine.

1. True
2. False

Q.

Feeling the tremors of an earthquake, a scared resident of seventh floor of a multistoreyed building starts climbing down the stairs rapidly. Which hormone is responsible for initiation of this action?

1. Thyroxine

2. Adrenaline

3. Glucagon

4. Gastrin

Q. Mention one function of adrenaline hormone.

1. Adrenaline increases blood volume and supply of blood to various organs.
2. Adrenaline increases heart rate and supply of carbon dioxide to various organs.
3. Adrenaline increases heart rate and supply of blood to various organs.
4. Adrenaline decreases heart rate and supply of blood to various organs.

Q. (a)

How does chemical coordination take place in human beings?

Q.

What hormone causes Peristalsis?

Q. Which hormone is commonly known as fight and flight hormone?

Q. Assertion :Adrenaline is called an emergency hormone. Reason: It acts on the cells of skeletal, cardiac, smooth muscles, blood vessels and fat cells.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
3. Assertion is correct but Reason is incorrect.
4. Both Assertion and Reason are incorrect.