Tag: the endocrine system

Quizzes (9) Questions (66)

Questions Related to the endocrine system

Multiple choice zoology the endocrine system introduction to human endocrine system endocrine system and hormone coordination in human beings- chemical control

Endocrine glands release hormones directly into the blood. ............. transports it to the target organs .................. 

  1. Blood, target organ

  2. Effector organ, blood

  3. Ducts, target organ

  4. Capillaries, target organ
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Endocrine glands release hormones directly into the blood for transportation to the effector organ. The effector organ can also be called as a target organ. The major glands of the endocrine system include the pineal gland, pituitary gland, pancreas, ovaries, testes, thyroid gland, parathyroid gland, hypothalamus and adrenal glands.

So, the correct answer is option A.

Multiple choice zoology the endocrine system introduction to human endocrine system endocrine system and hormone coordination in human beings- chemical control

Structure responsible for formation of sigmoid notch is

  1. Olecranon process of humerus

  2. Olecranon process of femur

  3. Olecranon process of radius ulna

  4. Olecranon process of tibia fibula
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ulna projects beyond the radius as an oleander process which has a deep sub terminal sigmoid notch for articulation with the distal end of humerus.

Multiple choice zoology the endocrine system introduction to human endocrine system endocrine system and hormone coordination in human beings- chemical control

Which of the following statements is correct in relation to the endocrine system?

  1. Adenohypophysis is under direct neural regulation of the hypothalamus

  2. Organs in the body like gastrointestine tract, heart, kidney and liver do not produce any hormones

  3. Non-nutrient chemicals produced by the body in trace amount that act as intercellular messenger are known as hormones

  4. Releasing and inhibitory hormones are produced by the pituitary gland
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Adenohypophysis is not under direct regulation of the hypothalamus. Neurohypophysis is under direct regulation of the hypothalamus.

Organs in the body like gastrointestine tract produce peptide hormones, heart produce atrial natriuretic factor (ANF) hormone, kidney produce erythropoietin and liver produce angiotensinogen.
Hormones are non-nutrient chemicals produced by the body in trace amount that act as intercellular messenger. They are secreted from endocrine glands. They act on their target organ and carry out specific functions.
Releasing and inhibitory hormone like Thyrotropin releasing hormone and dopamine, respectively, are produced by the hypothalamus.
Statement C is correct in relation to the endocrine system.

Multiple choice zoology the endocrine system introduction to human endocrine system endocrine system and hormone coordination in human beings- chemical control

Which of the following disease results from endocrine disorder?

  1. Goitre

  2. Jaundice

  3. Typhoid

  4. Pneumonia
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

(A) Goiter is the enlargement of the thyroid gland. A goiter is associated with the thyroid which is not functioning properly.

(B) Jaundice is a yellowish pigmentation of the skin. 
(C) Typhoid is a bacterial infection that spreads through contaminated water and food.
(D) Pneumonia is an inflammatory condition of lung affecting primarily the small air sacs known as alveoli.
So the correct option is goiter. 

Multiple choice zoology the endocrine system introduction to human endocrine system endocrine system and hormone coordination in human beings- chemical control

Choose the correct option among the following.

Column A Column B
A. Epinephrine (i) Stimulates in muscle growth
B. Testosterone (ii) Decrease in blood pressure
C. Glucagon (iii) Breakdown of liver glycogen
D. Atrial natriuretic factor (iv) Increases heart beat

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

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

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

  4. A-(i), B-(iv), C-(ii), D-(iii)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A. Role of epinephrine and non- epinephrine- They whip up metabolism for preparing the animal to face special conditions created by physical stress such as fall in BP or blood sugar, anger, fear etc..All these conditions require more energy which is provided by increasing heart rate, blood pressure, sugar level of blood.

B. Testosterone- It stimulates the development of male accessory sex characters such as hair on the face, growth and distribution of hair on the body, stronger bones and muscles.
C. Glucagon- It is secreted by alpha cells of the islands of Langerhans in response to a fall in the blood glucose level. It brings about change of liver glycogen to blood glucose( glycogenolysis).
D. Atrial natriuretic factor- The cells, called cardiocytes, of the atria secrete a peptide, ANF in response to an increased return of the venous blood. This hormone regulates the blood volume through increased excretion of ions and water.
So, the correct answer is 'A-(iv), B-(1), C-(iii), D-(ii)'.

Multiple choice zoology the endocrine system introduction to human endocrine system endocrine system and hormone coordination in human beings- chemical control

Which of the following match is correct?

  1. Hormone-Oxytocin, Effect-Milk ejection hormone

  2. Hormone-Glucagon, Effect-Decreases blood sugar level

  3. Hormone-Adrenaline, Effect-Decreases heart rate

  4. Hormone-Thyroxine, Effect-Decreases BMR
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Oxytocin- Milk ejection hormone
Glucagon- Increases blood sugar level
Adrenaline- Increases heart rate
Thyroxine- Increases BMR.

Multiple choice zoology the endocrine system introduction to human endocrine system endocrine system and hormone coordination in human beings- chemical control

Endocrine glands secrete their secretion in 

  1. Blood

  2. Lymph

  3. Urine

  4. Endometrium
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Endocrine glands are the part of an endocrine system that produces hormones and other secretions directly into the blood, They include pituitary gland, thyroid gland, ovaries, testis, hypothalamus, etc. Blood helps transport these hormones faster to the target organs, thereby helping in its action. So, the correct answer is option A.

Multiple choice zoology the endocrine system introduction to human endocrine system endocrine system and hormone coordination in human beings- chemical control

Given below are four statements (A - D) each with one or two blanks. Select the option which correctly fills up the blanks in two statements.
(A) Thymus secretes (i)_ which help in differentiation of (ii).
(B) The adrenal medulla secretes (i) which stimulates the breakdown of (ii) to increase the blood glucose concentration during emergency situations.
(C) The Leydig's cells or (i) present in the intertubular spaced in testis, produce a group of hormone called (ii).
(D) Thyroid gland secrestes __(i)_ and triiodothyronine. (ii) is essential for the normal rate of hormone synthesis in the thyroid.

  1. (A) - (i) melatonin, (ii) T- lymphocytes
    (B) - (i) adrenaline, (ii) fat

  2. (B) - (i) catecholamines, (ii) glycogen
    (C) - (i) interstitial cells, (ii) progesterone

  3. (B) - (i) catecholamines, (ii) glycogen
    (D) - (i) thyroxine, (ii) iodine

  4. (A) - (i) thymosin, (ii) T- lymphocytes
    (D) - (i) parathyroid hormone, (ii) calcium
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

1.       (B) The adrenal medulla secretes catecholamines which stimulate the breakdown of glycogen to increase the blood glucose concentration during emergency situations.

(D) The thyroid gland secretes thyroxine and triiodothyronine. Iodine is essential for the normal rate of hormone synthesis in the thyroid gland.

So, the correct answer is '(B) - (i) catecholamines, (ii) glycogen
(D) - (i) thyroxine, (ii) iodine'.

Multiple choice zoology the endocrine system introduction to human endocrine system endocrine system and hormone coordination in human beings- chemical control

Endocrine glands have _________ to carry their secretions to the specific organ.

  1. Capillaries

  2. Tubules

  3. No ducts

  4. Ducts
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Endocrine glands lack ducts and pass their secretions into the surrounding blood for transport to the site of action. They are also called ductless glands. Their secretions are known as hormones.

Multiple choice zoology the endocrine system introduction to human endocrine system endocrine system and hormone coordination in human beings- chemical control

Ductless glands are also known as

  1. Salivary glands

  2. Endocrine glands

  3. Exocrine glands

  4. Both A and B
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The endocrine gland is called the ductless glands because there are no ducts in the glands. The products such as hormones are secreted and goes directly to the bloodstream. So there is no need for glands to collect and distribute the products, it just goes straight to the blood. Exocrine glands are the ones that do require ducts.