Chemical Coordination and Integration Test 41

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Chemical Coordination and Integration Test 41

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Weekly Quiz Competition

Question 1
1 / -0

Which one of the following serves as a link between the autonomic nervous system and the endocrine system?

A
Blood

B
Thymus

C
Cerebrum

D
Hypothalamus

Solution

The hypothalamus id the nasal part of the diencephalon, forebrain and it regulates a wide spectrum of body functions. It contains several groups of neurosecretory cells called nuclei which produce hormones. These hormones regulate the synthesis and secretion of pituitary hormones. The neural system and the endocrine system jointly coordinate and regulate the physiological functions in the body.
So the correct answer is hypothalamus.
Question 2
1 / -0

........... shows anti-allergic and anti-inflammatory effect.

A
Mineralocorticoids

B
Glucocorticoids

C
Sexcorticoids

D
Noradrenaline

Solution

Glucocorticoid is a class of corticosteroids. It basically acts by decreasing inflammation and suppressing the immune system. It shows anti-inflammatory effect. It also plays an important role in regulation of glucose metabolism. It shows anti-allergic effect in cell mediated (type IV) allergic reactions. Examples of glucocorticoids include prednisone, dexamethasone, hydrocortisone.
Thus, the correct answer is option B.
Question 3
1 / -0

Which of the following statement is correct for pituitary gland?
(i) Melanocyte-stimulating hormone is secreted from the intermediate lobe of the pituitary gland.
(ii) The pituitary gland is located below the hypothalamus.
(iii) Oxytocin produces from posterior lobe of pituitary gland.
(iv) Somatotropic hormone secretes from intermediate lobe of pituitary gland.

A
(i), (ii), (iii)

B
(i), (iv), (iii)

C
(i), (ii), (iv)

D
(i), (ii), (iii), (iv)
Solution
- The pituitary gland is a tiny organ, the size of a pea, located at the base of the brain below the hypothalamus(located below the thalamus part of the brain). The pituitary gland is divided into three parts, also called lobes:
  Anterior pituitary, Intermediate pituitary (Absent in adult human beings)and Posterior pituitary.
  Melanocyte-stimulating hormone (MSH) is secreted from the intermediate lobe of the pituitary gland. It Stimulates the production of melanin by skin and hair.
  Posterior lobe pituitary gland secretes Oxytocin. Oxytocin Controls certain aspects of pregnancy and childbirth such as uterine contraction and production of milk.
  Somtotropic hormone secretes from the anterior lobe of the pituitary gland.
  So, the correct answer is (I),(II),(III).
Question 4
1 / -0

Choose the correct answer from the alternatives given.
Gonadotropin releasing hormone is secreted by:

A
pituitary

B
hypothalamus

C
cerebellum

D
gonads

Solution

GH- RH ( Gonadotropic releasing hormone ) secretes growth hormone (GH). GH or STH (Growth or Somatotropin Hormone) stimulates body growth, protein, fat, and carbohydrate metabolism. The hormone is secreted by adenohypophysis (anterior pituitary). Hypersecretion of this hormone during the period of skeletal growth causes gigantism characterized by excessive growth of bones, with the enlargement of internal organs as well. Hypersecretion in adulthood causes acromegaly. Here the bones become abnormally thick due to ossification of periosteum and thickening of soft tissues as well.
So the correct answer is hypothalamus.
Question 5
1 / -0

Choose the correct answer from the alternatives given.
Which one of the following hormones has a stimulatory effect on heart?

A
Thyroxine

B
Gastrin

C
Adrenaline

D
Thymosin

Solution

Adrenaline is rapidly secreted in response to stress and emergency situations and is called emergency hormones or hormones of Fight or Flight. This hormone increases the heartbeat, the strength of heart contraction and rate of respiration.
So the correct answer is adrenaline.
Question 6
1 / -0

Choose the correct answer from the alternatives given.
Hypothyroidism in children results in:

A
dwarfism

B
acromegaly

C
high blood pressure

D
high body temperature

Solution

GH or STH (Growth or Somatotropin Hormone) stimulates body growth, protein, fat, and carbohydrate metabolism. Hyposecretion of this hormone causes dwarfism. Hypersecretion of this hormone during the period of skeletal growth causes gigantism characterized by excessive growth of bones, with the enlargement of internal organs as well. Hypersecretion in adulthood causes acromegaly. Here the bones become abnormally thick due to ossification of periosteum and thickening of soft tissues as well.
So the correct answer is dwarfism.
Question 7
1 / -0

Choose the correct answer from the alternatives given.
Pick out the false statement pertaining to acromegaly:

A
oversecretion of somatotropin after adolescence causes this disease

B
the person gets a giant stature

C
long bones of the limbs elongate

D
the person looks like a gorilla

Solution

GH or STH (Growth or Somatotropin Hormone) stimulates body growth, protein, fat and carbohydrate metabolism. Hypersecretion of this hormone during the period of skeleteal growth causes gigantism characterized by excessive growth of bones, with the enlargement of internal organs as well. Hypersecretion in adulthood causes acromegaly. Here thr, bones become abnormally thick due to ossification of periosteum and thickening of soft tissues as well.
So the correct answer is the person gets a giant structure.
Question 8
1 / -0

Choose the correct answer from the alternatives given.
Which of the following is responsible for ovulation and formation of corpus luteum?

A
L.T.H.

B
T.S.H

C
S.TH.

D
L.H

Solution

LH stimulates the synthesis and secretion of hormones called androgens from testis. In females, LH induces ovulation of fully mature follicles and maintains the corpus luteum.
So the correct answer is LH.
Question 9
1 / -0

Choose the correct answer from the alternatives given.
Which of the following is not a secretion of the adrenal glands?

A
Glucocorticoids

B
Androgens

C
Melatonin

D
Aldosterone

Solution

Our body has one pair of adrenal glands, one at the anterior part of each kidney. One is adrenal medulla and another one is adrenal cortex. The adrenal medulla secretes two hormones adrenaline and noradrenaline. The adrenal cortex produces three hormones glucocorticoids, mineralocorticoids, androgens (sex hormone). Whereas the melatonin hormone is released by the pineal gland.
So the correct answer is melatonin.
Question 10
1 / -0

Choose the correct answer from the alternatives given.
Oxytocin stimulates contraction of:

A
testis

B
ovary

C
uterus

D
heart

Solution

Oxytocin acts on the smooth muscles of our body and stimulates their contraction. In females, it stimulates a vigorous contraction of the uterus at the time of childbirth, and milk ejection from the mammary gland.
So the correct answer is the uterus.

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Chemical Coordination and Integration Test 41

Result

Chemical Coordination and Integration Test 41

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SHARING IS CARING

Question 1

Blood

Thymus

Cerebrum

Hypothalamus

Solution

Question 2

Mineralocorticoids

Glucocorticoids

Sexcorticoids

Noradrenaline

Solution

Question 3

(i), (ii), (iii)

(i), (iv), (iii)

(i), (ii), (iv)

(i), (ii), (iii), (iv)

Solution

Question 4

pituitary

hypothalamus

cerebellum

gonads

Solution

Question 5

Thyroxine

Gastrin

Adrenaline

Thymosin

Solution

Question 6

dwarfism

acromegaly

high blood pressure

high body temperature

Solution

Question 7

oversecretion of somatotropin after adolescence causes this disease

the person gets a giant stature

long bones of the limbs elongate

the person looks like a gorilla

Solution

Question 8

L.T.H.

T.S.H

S.TH.

L.H

Solution

Question 9

Glucocorticoids

Androgens

Melatonin

Aldosterone

Solution

Question 10

testis

ovary

uterus

heart

Solution

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