Endocrine System - 2

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  • 1/20 Questions

    Hunger and thirst is controlled by____

    • Thalamus
    • Hypothalamus
    • Pituitary
    • Gi system
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Endocrine System Quizzes & Trivia
About This Quiz

Explore key functions of the endocrine system with 'Endocrine System - 2'. This quiz covers the roles of the hypothalamus and pituitary gland, addressing how they control hunger, thirst, and hormone secretion, enhancing understanding of human physiology.

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  • 2. 

    Commander-in-chief of the endocrine system is____

    • Thalamus

    • Pituitary

    • Hypothalamus

    • Nervous system

    Correct Answer
    A. Hypothalamus
    Explanation
    The hypothalamus is considered the commander-in-chief of the endocrine system because it plays a crucial role in regulating and controlling hormone release from the pituitary gland. It receives signals from various parts of the body and initiates appropriate responses by releasing hormones that stimulate or inhibit the pituitary gland. The pituitary gland, in turn, releases hormones that control other endocrine glands throughout the body. Therefore, the hypothalamus acts as a central control center, coordinating the activities of the endocrine system and maintaining overall hormonal balance.

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  • 3. 

    Pituitary is known as____of endocrine glands

    • Commander-in-chief

    • Master gland

    • Setpoint

    • Thermoregulatory system

    Correct Answer
    A. Master gland
    Explanation
    The pituitary gland is often referred to as the "master gland" because it plays a crucial role in regulating and controlling the functions of other endocrine glands in the body. It secretes hormones that stimulate the release of hormones from other glands, such as the thyroid, adrenal glands, and reproductive organs. Additionally, the pituitary gland is responsible for maintaining the body's overall hormonal balance and controlling various bodily processes, including growth, metabolism, and reproduction. Therefore, it is considered the most important and influential gland in the endocrine system.

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  • 4. 

    Pituitary acts under the orders from____

    • Master cells

    • Hypothalamus

    • Nervous system

    • Hormones

    Correct Answer
    A. Hypothalamus
    Explanation
    The pituitary gland acts under the orders from the hypothalamus. The hypothalamus is a small region in the brain that controls the release of hormones from the pituitary gland. It sends signals to the pituitary gland to release specific hormones into the bloodstream, which then regulate various functions in the body. This communication between the hypothalamus and pituitary gland is crucial for maintaining hormonal balance and overall body homeostasis.

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  • 5. 

    Vasopressin and oxytocin are secreted by____part of pituitary

    • Anterior

    • Posterior

    • Lateral

    • Adenohypophysis

    Correct Answer
    A. Posterior
    Explanation
    Vasopressin and oxytocin are secreted by the posterior part of the pituitary gland. The posterior pituitary, also known as the neurohypophysis, stores and releases hormones produced by the hypothalamus. Vasopressin, also called antidiuretic hormone (ADH), helps regulate water balance in the body and controls blood pressure. Oxytocin plays a role in childbirth and lactation, as well as social bonding and emotional behavior. These hormones are transported through nerve fibers from the hypothalamus to the posterior pituitary, where they are released into the bloodstream when needed.

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  • 6. 

    As an effect of antidiuretic hormone[vasopressin] urine production____

    • Increases

    • Decreases

    • Stabilizes

    • Doesn't affect

    Correct Answer
    A. Decreases
    Explanation
    Antidiuretic hormone, also known as vasopressin, plays a crucial role in regulating water balance in the body. It acts on the kidneys, specifically on the collecting ducts, to increase their permeability to water, allowing more water to be reabsorbed back into the bloodstream. This results in a decrease in urine production, as more water is conserved in the body. Therefore, the correct answer is "decreases."

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  • 7. 

    ____hormones are secreted during dehydration

    • ADH

    • Oxytocin

    • Renin

    • Insulin

    Correct Answer
    A. ADH
    Explanation
    ADH, also known as antidiuretic hormone, is secreted during dehydration. ADH helps regulate the body's water balance by decreasing urine production and promoting water reabsorption in the kidneys. When the body is dehydrated, ADH levels increase to conserve water and prevent further fluid loss. This hormone acts on the kidneys to reduce the amount of water excreted in urine, thus helping to maintain fluid balance in the body.

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  • 8. 

    Uterine contraction during labour and milk ejection in nursing mothers are controlled by____

    • ADH

    • Vasopressin

    • Oxytocin

    • Insulin

    Correct Answer
    A. Oxytocin
    Explanation
    Oxytocin is the correct answer because it is a hormone that plays a crucial role in both uterine contractions during labor and milk ejection in nursing mothers. During labor, oxytocin is released to stimulate contractions and help progress the delivery of the baby. In nursing mothers, oxytocin is released when the baby suckles at the breast, causing the milk to be ejected and facilitating breastfeeding. ADH, vasopressin, and insulin do not have direct involvement in these processes.

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  • 9. 

    The hormone levels are controlled by ____feed back to both pituitary and hypothalamus

    • Positive feed back

    • Negative feed back

    • Homeostasis

    • Setpoint

    Correct Answer
    A. Negative feed back
    Explanation
    Negative feedback is the correct answer because it refers to a regulatory mechanism in which the hormone levels are controlled by inhibitory signals that are sent back to both the pituitary gland and the hypothalamus. This feedback mechanism helps maintain a stable internal environment by reducing or stopping the production of hormones when their levels become too high. It acts as a self-regulating system, ensuring that hormone levels stay within a desired range and preventing excessive hormone secretion.

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  • 10. 

    Growth hormones are secreted by____pituitary

    • Adenohypopysis[anterior]

    • Neurohypophysis[posterior[

    • Thalamus

    • Not by pituitary

    Correct Answer
    A. Adenohypopysis[anterior]
    Explanation
    The correct answer is adenohypopysis [anterior]. Growth hormones are secreted by the anterior pituitary gland, which is also known as adenohypopysis. The anterior pituitary is responsible for producing and releasing various hormones, including growth hormone, which plays a crucial role in regulating growth and development in the body. The posterior pituitary gland, known as neurohypophysis, does not secrete growth hormones. The thalamus is not involved in the secretion of growth hormones.

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  • 11. 

    Gigantism and dwarfism occurs due to the abnormal secretions of____hormons

    • TESTOSTERONES

    • ADH

    • GROWTH HORMONE

    • OXYTOCIN

    Correct Answer
    A. GROWTH HORMONE
    Explanation
    Gigantism and dwarfism occur due to the abnormal secretions of growth hormone. Growth hormone is responsible for regulating the growth and development of bones and tissues in the body. When there is an excess of growth hormone, it can lead to gigantism, causing excessive growth and height. On the other hand, a deficiency of growth hormone can result in dwarfism, causing stunted growth and short stature. Therefore, the abnormal secretions of growth hormone play a crucial role in the development of gigantism and dwarfism.

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  • 12. 

    Butterfly shaped gland located in the anterior part of neck is called____

    • Thymus

    • Thyroid

    • Pancreas

    • Posterior pituitary

    Correct Answer
    A. Thyroid
    Explanation
    The butterfly-shaped gland located in the anterior part of the neck is called the thyroid gland. It is responsible for producing and releasing hormones that regulate metabolism, growth, and development in the body. The thymus is a gland located in the chest that plays a role in the development of the immune system, while the pancreas is an organ involved in digestion and blood sugar regulation. The posterior pituitary is a part of the brain that releases hormones involved in regulating water balance and childbirth.

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  • 13. 

    Thyroxin,tri iodothyronin and calcitonin are secreted by____under orders from pituitary

    • Thymus

    • Thyroid glands

    • Hypothalamus

    • Iodine

    Correct Answer
    A. Thyroid glands
    Explanation
    Thyroxin, tri iodothyronin, and calcitonin are hormones that are secreted by the thyroid glands. The thyroid glands are responsible for producing and releasing these hormones under the orders from the pituitary gland. These hormones play crucial roles in regulating metabolism, growth, and development in the body.

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  • 14. 

    Iodine is necessary to make ____hormones

    • Pituitary

    • Thyroid

    • Gonalds

    • Pancreas

    Correct Answer
    A. Thyroid
    Explanation
    Iodine is necessary to make thyroid hormones. The thyroid gland uses iodine to produce hormones that regulate metabolism and control the growth and development of the body. Without sufficient iodine, the thyroid gland cannot produce enough hormones, leading to various health problems such as goiter, hypothyroidism, or hyperthyroidism. Therefore, iodine is specifically required for the synthesis of thyroid hormones.

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  • 15. 

    Parathyroid hormones regulate the levels of ____in blood stream

    • Calcium

    • Sodium

    • Potassium

    • Minerals

    Correct Answer
    A. Calcium
    Explanation
    Parathyroid hormones play a crucial role in regulating the levels of calcium in the bloodstream. These hormones are released by the parathyroid glands in response to low calcium levels. They act on the bones, kidneys, and intestines to increase calcium absorption, decrease calcium excretion, and stimulate the release of stored calcium from bones. By doing so, parathyroid hormones help maintain the appropriate levels of calcium in the blood, which is essential for various physiological processes such as muscle contraction, nerve function, and bone health.

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  • 16. 

    Thymosin helps with maturation of ____in childhood to fight infection

    • WBC

    • RBC

    • T CELLS

    • B CELLS

    Correct Answer
    A. WBC
    Explanation
    Thymosin is a hormone that plays a crucial role in the maturation and development of white blood cells (WBCs) in childhood. WBCs are an essential part of the immune system and are responsible for fighting off infections and diseases. Thymosin aids in the production and maturation of these cells, ensuring that they are able to effectively combat infections and maintain overall immune health.

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  • 17. 

    Normal blood sugar level is____

    • 100-180mg/dl

    • 70-105mg/dl

    • 80-180mg/dl

    • >100mg/dl

    Correct Answer
    A. 70-105mg/dl
    Explanation
    The normal blood sugar level is typically measured between 70-105mg/dl. This range is considered healthy and indicates that the body is able to properly regulate blood sugar levels. Blood sugar levels below or above this range may be indicative of certain health conditions such as diabetes. It is important to maintain a balanced blood sugar level to ensure overall well-being.

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  • 18. 

    ____is vital for cellular respiration to make energy for body

    • Glucose

    • Insulin

    • Glucagon

    • Oxygen

    Correct Answer
    A. Glucose
    Explanation
    Glucose is vital for cellular respiration to make energy for the body. During cellular respiration, glucose is broken down in the presence of oxygen to produce ATP, which is the main source of energy for cells. Without glucose, the cells would not have the necessary fuel to carry out their functions. Insulin and glucagon are hormones involved in regulating blood sugar levels, while oxygen is necessary for the final step of cellular respiration. However, glucose is the direct source of energy that is utilized in cellular respiration.

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  • 19. 

    Testis and ovaries are collectively called____

    • Glands

    • Sexual hormones

    • Gonads

    • Reproductive organs

    Correct Answer
    A. Gonads
    Explanation
    The correct answer is "gonads". The term "gonads" refers to the reproductive organs that produce gametes (sperm or eggs) and hormones. Testis and ovaries are examples of gonads in males and females, respectively. These organs play a crucial role in the production of reproductive cells and the secretion of sex hormones necessary for sexual development and reproduction.

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  • 20. 

    Goitre is a result of overactive thyroid gland due to____.

    • Hypothyroidism

    • Hyperthyroidism

    • Hyperglycemia

    • Addison disease

    Correct Answer
    A. Hyperthyroidism
    Explanation
    Hyperthyroidism is a condition characterized by an overproduction of thyroid hormones by the thyroid gland, leading to an enlargement of the thyroid gland known as goitre.
    Hypothyroidism, on the other hand, is a condition characterized by an underproduction of thyroid hormones and is not typically associated with goitre.
    Hyperglycemia refers to high blood sugar levels and is unrelated to thyroid function.
    Addison's disease is a disorder of the adrenal glands, not the thyroid gland.

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  • Current Version
  • Feb 15, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 09, 2009
    Quiz Created by
    Aji

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