The ANF and Its Functions

Q. What is the role of the second messenger in hormone action?

Q. Illustrate the differences between the mechanism of action of a protein and a steroid hormone.

Q. Which of the following hormones decreases the blood pressure?

1. Epinephrine
2. Aldosterone
3. Atrial natriuretic factor
4. Cortisol

Q.

What functions does epinephrine conduct?

Q. Match the following hormones with their antagonistic hormones.
$\begin{array}{cccc}& \text{Hormone~ 1}& & \text{Hormone - 2}\\ \text{p}& \text{Insulin}& \text{1}& \text{Calcitonin}\\ \text{q}& \text{Growth hormone releasing hormone}& \text{2}& \text{Atrial natriuretic factor (ANF)}\\ \text{r}& \text{Parathyroid hormone}& \text{3}& \text{Glucagon}\\ \text{s}& \text{Aldosterone}& \text{4}& \text{Somatostatin}\end{array}$

1. p-3, q-4, r- 1. s-2
2. p-1, q-2, r- 3. s-4
3. p-3, q-1, r- 4. s-2
4. p-2, q-3, r- 1. s-4

Q.

How does ANF cause a drop in blood pressure?

Q. Hormones are called chemical signals that stimulate specific target tissues. Their action depends on the presence of receptors on the respective target tissues. Which of the following is the correct location of the receptors in the case of protein hormones?

1. Extracellular matrix
2. Plasma membrane
3. Blood
4. Nucleus

Q. Match the following from column 1 and column 2
$\begin{array}{cc}\text{Column 1}& \text{Column 2}\\ \text{A.Somatostatin}& \text{(i) Basal part of diencephalon}\\ \text{B.Pituitary}& \text{(ii) Produced by the hypothalamus}\\ \text{C.Hypothalamus}& \text{(iii) Master gland}\\ \text{D.GnRH}& \text{(iv) Inhibits the release of growth hormone}\end{array}$

1. A- (ii), B-(i), C-(iv), D-(iii)
2. A- (iii), B-(ii), C-(iv), D-(i)
3. A- (i), B-(iv), C-(ii), D-(iii)
4. A-(iv), B-(iii), C-(i), D-(ii)

Q.

Mention any role of:
Melatonin

Q. Hypothalamic hormones are produced by

1. neurosecretory cells
2. anterior pituitary lobe
3. Hippocampus
4. posterior pituitary lobe

Q. Which one of the following is also known as antidiuretic hormone?

1. Oxytocin
   
2. Calcitonin
3. Vasopressin
   
4. Adrenaline
   

Q.

Increase in blood pressure caused by norepinephrine?

Q.

Does ANP increase or decrease blood pressure?

Q.

How does the volume of circulating blood affect blood pressure?

Q. In the mechanism of action of a protein hormone, one of the second messengers is

1. Gastrin
2. Insulin
3. $T_3$
4. Cyclic AMP

Q.

How can ADH cause an increase in blood pressure?

Q. Name the hormone which is released during hypertension or low blood pressure.

1. Adrenaline
2. Vasopressin
3. Thyroxine
4. Oestrogen

Q. Assertion :RBC production is regulated by kidney. Reason: Erythropoietin reaches red bone marrow, induces stem cell mitosis and speeds up development of RBC.

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

Q. Which of the following hormones is responsible for decreasing the blood pressure?

1. Adrenaline
2. Atrial natriuretic factor
3. Cortisol
4. Nor adrenaline

Q. Identify the hormone with its correct match of source and function

1. Oxytocin - Anterior pituitary - Growth and maintenance of mammary glands
2. Erythropoietin - Kidney - Inhibits synthesis of RBCs
3. Insulin - Adrenal gland - Decreases blood sugar level
4. Atrial natriuretic factor - Atrial wall - Decreases the blood pressure

Q. Effects of drinking alcohol in human body?

Q.

Which of these hormones is likely to cause a rise in blood pressure?

1. renin

2. None of the hormones mentioned would cause a rise in blood pressure

3. ADH

4. Both a and b are correct

Q. Effects of alcohol on human body includes

1. Increased blood sugar level
2. Fatty liver syndrome
3. Amnesia
4. All of the above

Q. A drunkard has an unsteady walk, slurred speech, lack of coordination of thought speech and action.
a) Why does this happen?
b) What is the long term effect of alcoholic addiction?

Q.

How does oxytocin help in childbirth?

Q. Addiction to alcohol drinking leads to ........... diseases.

1. renal
2. heart
3. liver
4. all of these

Q. Assertion :RBC production is regulated by kidney Reason: Erythropoietin plays an important role

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

Q. When a person consumes alcohol it is absorbed directly from the stomach into the bloodstream. Give three immediate effects.

Q. Atrial natriuretic factor is released in response to

1. Decrease in GFR
2. Decrease in blood pressure
3. Increase in blood pressure
4. Decrease in filtrate passing through DCT

Q. Assertion :The shape of the uterus is like an inverted pear. Reason: The inner glandular layer that lines the uterine cavity is called as myometrium.

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