YMCA L3 Anatomy - Endocrine System

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  • 1/25 Questions

    What action speeds up heart rate?

    • Release of adrenaline
    • Release of nonadrenaline
    • Release of growth hormones
    • Release of thyroxine
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About This Quiz

This YMCA L3 Anatomy quiz focuses on the Endocrine System, exploring key hormones like adrenaline and glucagon, their functions, and production sites. It assesses understanding of physiological responses and regulatory mechanisms, crucial for students in health-related fields.

YMCA L3 Anatomy - Endocrine System - Quiz

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  • 2. 

    What hormone is associated with the 'fight or flight' response?

    • Adrenaline

    • Thyroxine

    • Growth

    • Insulin

    Correct Answer
    A. Adrenaline
    Explanation
    Adrenaline is the hormone associated with the 'fight or flight' response. When the body perceives a threat or danger, adrenaline is released into the bloodstream, preparing the body for immediate action. It increases heart rate, blood pressure, and energy levels, while also enhancing focus and alertness. This response helps individuals to either confront the threat or escape from it, allowing for survival in dangerous situations.

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  • 3. 

    What hormone is responsible for raising blood sugar levels?

    • Glucagon

    • Glycogen

    • Insulin

    • Glucose

    Correct Answer
    A. Glucagon
    Explanation
    Glucagon is the correct answer because it is a hormone produced by the pancreas that helps to raise blood sugar levels. When blood sugar levels are low, glucagon stimulates the liver to convert stored glycogen into glucose and release it into the bloodstream. This process, known as glycogenolysis, helps to increase blood sugar levels and provide energy to the body. Therefore, glucagon plays a crucial role in maintaining blood sugar balance in the body.

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  • 4. 

    Which gland releases hormones that regulate blood glucose levels?

    • Pancreas

    • Parathyrodi

    • Adrenal

    • Pituitary

    Correct Answer
    A. Pancreas
    Explanation
    The pancreas releases hormones that regulate blood glucose levels. One of these hormones is insulin, which helps lower blood sugar levels by allowing cells to take in glucose from the bloodstream. Another hormone, glucagon, raises blood sugar levels by signaling the liver to release stored glucose. This balance between insulin and glucagon helps maintain stable blood glucose levels in the body.

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  • 5. 

    Describe a negative feedback loop?

    • Insulin is released to bring blood sugar back down.

    • Oestrogen is released during the menstrual cycle

    • Hormones are released to clot blood

    • Oxytocin is released during labour

    Correct Answer
    A. Insulin is released to bring blood sugar back down.
    Explanation
    Insulin is released to bring blood sugar back down. This is an example of a negative feedback loop because when blood sugar levels rise, the pancreas releases insulin to lower them. Insulin helps cells take in glucose from the blood, reducing blood sugar levels. Once blood sugar levels are back to normal, the release of insulin is inhibited. This process maintains homeostasis by regulating blood sugar levels and preventing them from becoming too high.

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  • 6. 

    Where are catecholamines produced?

    • Adrenal gland

    • Hypothalamus

    • Gonads

    • Thyroid

    Correct Answer
    A. Adrenal gland
    Explanation
    Catecholamines are produced in the adrenal gland. The adrenal gland is responsible for producing and releasing hormones such as adrenaline (epinephrine) and noradrenaline (norepinephrine), which are both examples of catecholamines. These hormones play a crucial role in the body's response to stress, regulating blood pressure, heart rate, and the body's fight-or-flight response. Therefore, the correct answer is the adrenal gland.

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  • 7. 

    Which hormone causes the conversion of glycogen to glucose to raise blood sugar level?

    • Insulin

    • Glucagon

    • Testosterone

    • Oestrogen

    Correct Answer
    A. Glucagon
    Explanation
    Glucagon is a hormone released by the pancreas in response to low blood sugar levels. It stimulates the liver to break down stored glycogen into glucose, which is released into the bloodstream, thereby raising blood sugar levels. This process helps maintain glucose homeostasis in the body.

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  • 8. 

    What gland is situated at the base of the brain?

    • Hypothalamus

    • Adrenal

    • Parathyroid

    • Thyroid

    Correct Answer
    A. Hypothalamus
    Explanation
    The hypothalamus is a gland that is situated at the base of the brain. It plays a crucial role in controlling various bodily functions, including the release of hormones from the pituitary gland. It helps regulate body temperature, hunger and thirst, sleep patterns, and the production of hormones that control growth, reproduction, and stress response.

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  • 9. 

    Which gland regulates stress and immune responses?

    • Adrenal

    • Thyroid

    • Pancreas

    • Gonads

    Correct Answer
    A. Adrenal
    Explanation
    The adrenal gland is responsible for regulating stress and immune responses. It produces hormones such as cortisol, which helps the body respond to stress, and adrenaline, which prepares the body for fight or flight responses. The adrenal gland also plays a role in regulating the immune system by producing hormones that help control inflammation and immune cell functions. Therefore, the adrenal gland is the correct answer for the gland that regulates stress and immune responses.

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  • 10. 

    What is an effect of a ‘negative feedback loop’ resulting from increased core body temperature?

    • Sweating

    • Shivering

    • 'Fight or flight'

    • Catabolism

    Correct Answer
    A. Sweating
    Explanation
    When the body's core temperature increases, a negative feedback loop is activated to bring it back to normal. One effect of this negative feedback loop is sweating. Sweating helps cool down the body by releasing heat through evaporation. As sweat evaporates from the skin, it takes away heat from the body, thus helping to lower the core temperature. Therefore, sweating is an effect of a negative feedback loop resulting from increased core body temperature.

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  • 11. 

    Which hormone is responsible for breaking things down?

    • Catabolic

    • Anabolic

    • Peptides

    • Insulin

    Correct Answer
    A. Catabolic
    Explanation
    Catabolic hormones are responsible for breaking things down in the body. These hormones promote the breakdown of complex molecules into simpler forms, such as the breakdown of proteins into amino acids or the breakdown of glycogen into glucose. This process releases energy and helps in the maintenance of various bodily functions. Anabolic hormones, on the other hand, promote the synthesis of complex molecules and the growth of tissues. Peptides and insulin are types of hormones, but they are not specifically responsible for breaking things down.

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  • 12. 

    Which hormone is responsible for building things up?

    • Anabolic

    • Catabolic

    • Peptide

    • Corticosteroids

    Correct Answer
    A. Anabolic
    Explanation
    Anabolic hormones are responsible for building things up in the body. They promote the synthesis of proteins and increase the growth of tissues and organs. These hormones play a crucial role in muscle growth, bone density, and overall development. They help in the repair and regeneration of cells and contribute to anabolism, which is the process of building complex molecules from simpler ones. Anabolic hormones include testosterone, insulin, and growth hormone. They are essential for maintaining a healthy and balanced body composition.

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  • 13. 

    Which hormone is slow acting but long lasting?

    • Steroids

    • Insulin

    • Peptides

    • Amino acids

    Correct Answer
    A. Steroids
    Explanation
    Steroids are slow acting but long lasting hormones. They are derived from cholesterol and are known for their ability to regulate various physiological processes in the body over a prolonged period of time. Unlike other hormones, steroids act by directly binding to specific receptors within the cell, leading to changes in gene expression and protein synthesis. This slow and sustained action allows steroids to have long-lasting effects on the body.

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  • 14. 

    Which hormone is fast acting and short lived?

    • Peptides

    • Steroids

    • Catabolic

    • Parathyroid

    Correct Answer
    A. Peptides
    Explanation
    Peptides are fast-acting and short-lived hormones because they are quickly synthesized and degraded by the body. Unlike steroids, which have a longer half-life and can have prolonged effects on the body, peptides act rapidly and have a shorter duration of action. Catabolic and parathyroid are not hormones, so they are not relevant to the question.

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  • 15. 

    Which of the following is an example of a steroid?

    • Testosterone

    • Glucagon

    • Thyroxine

    • Adrenaline

    Correct Answer
    A. Testosterone
    Explanation
    Testosterone is an example of a steroid because it is a hormone that is derived from cholesterol and has a steroid structure. Steroids are a class of organic compounds that have a characteristic structure consisting of four fused rings. Testosterone is produced primarily in the testes in males and in small amounts in the ovaries and adrenal glands in females. It plays a crucial role in the development of male reproductive tissues and secondary sexual characteristics.

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  • 16. 

    Which of the following is an example of a peptide?

    • Insulin

    • Testosterone

    • Growth hormone

    • Progesterone

    Correct Answer
    A. Insulin
    Explanation
    Insulin is an example of a peptide because it is a hormone composed of a chain of amino acids. Peptides are short chains of amino acids linked together by peptide bonds. Insulin is produced in the pancreas and plays a crucial role in regulating blood sugar levels. It is composed of two peptide chains, A and B, that are connected by disulfide bonds. Therefore, insulin fits the definition of a peptide and is the correct answer in this case.

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  • 17. 

    The hypothalamus releases which hormone?

    • Growth

    • Thyroxine

    • Adrenaline

    • Insulin

    Correct Answer
    A. Growth
    Explanation
    The hypothalamus is responsible for producing several hormones that regulate various bodily functions, including GHRH, which stimulates the pituitary gland to release growth hormone. Other key hormones released by the hypothalamus include Thyrotropin-releasing hormone (TRH), Corticotropin-releasing hormone (CRH), and Gonadotropin-releasing hormone (GnRH). It does not directly release growth hormone, thyroxine, adrenaline, or insulin.

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  • 18. 

    What is the role of the growth hormone?

    • Increases fat metabolism

    • Facilitates nervous system activity

    • Controls level of blood calcium

    • Promotes masculinisation

    Correct Answer
    A. Increases fat metabolism
    Explanation
    The growth hormone plays a role in increasing fat metabolism. This means that it helps to break down and utilize stored fat in the body for energy. By increasing fat metabolism, the growth hormone can contribute to weight loss and a decrease in body fat percentage.

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  • 19. 

    Where are the adrenal glands found?

    • Top of the kidneys

    • Neck

    • Base of the brain

    • Pelvic region

    Correct Answer
    A. Top of the kidneys
    Explanation
    The adrenal glands are found on top of the kidneys. These small, triangular-shaped glands are part of the endocrine system and are responsible for producing hormones such as adrenaline, cortisol, and aldosterone. They play a crucial role in regulating various bodily functions, including metabolism, blood pressure, and stress response. Being located on top of the kidneys allows for easy access to the bloodstream, ensuring efficient distribution of hormones throughout the body.

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  • 20. 

    Which gland is responsible for promoting male and female traits?

    • Gonads

    • Pancreas

    • Adrenal

    • Thyroid

    Correct Answer
    A. Gonads
    Explanation
    The gonads, which include the testes in males and ovaries in females, are responsible for promoting male and female traits. These reproductive glands produce hormones such as testosterone and estrogen, which are responsible for the development of secondary sexual characteristics and the regulation of reproductive functions in both males and females. The gonads play a crucial role in the development of reproductive organs, sexual behavior, and the overall physical and physiological differences between males and females.

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  • 21. 

    Which glands are situated in the neck?

    • Thyroid and parathyroid

    • Hypothalamus and pituitary

    • Ovaries and testes

    • Pancreas and adrenal

    Correct Answer
    A. Thyroid and parathyroid
    Explanation
    The correct answer is thyroid and parathyroid. The thyroid gland is located in the front of the neck, just below the Adam's apple, and it produces hormones that regulate metabolism. The parathyroid glands are small glands located behind the thyroid gland and they produce parathyroid hormone, which helps regulate the levels of calcium and phosphorus in the body. Both of these glands play important roles in the endocrine system and are situated in the neck region.

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  • 22. 

    A regular release of which hormone is necessary for everyday function?

    • Corticosteroids

    • Adrenaline

    • Insulin

    • Testosterone

    Correct Answer
    A. Corticosteroids
    Explanation
    Corticosteroids are necessary for everyday function because they play a vital role in regulating various bodily processes. They help to control inflammation, maintain blood pressure, balance electrolytes, and regulate the immune system. Without regular release of corticosteroids, these essential functions would be disrupted, leading to various health problems. Adrenaline, insulin, and testosterone are also important hormones, but they do not have the same broad range of functions as corticosteroids.

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  • 23. 

    Which of the following is an example of a corticosteroid?

    • Cortisol

    • Insulin

    • Progesterone

    • Thyroxine

    Correct Answer
    A. Cortisol
    Explanation
    Cortisol is an example of a corticosteroid because it is a hormone that is produced by the adrenal glands. It is involved in various physiological processes, including regulation of metabolism, immune response, and stress response. Corticosteroids are a class of hormones that are derived from the adrenal cortex and have anti-inflammatory and immunosuppressive properties. Cortisol specifically plays a role in regulating inflammation and suppressing the immune system, making it a commonly used corticosteroid in medical treatments for conditions such as allergies, asthma, and autoimmune diseases.

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  • 24. 

    Low levels of which hormone can lead to reduced basal metabolism and rapid weight gain? 

    • Thyroxin

    • Noradrenaline

    • Testosterone

    • PTH

    Correct Answer
    A. Thyroxin
    Explanation
    Low levels of thyroxin can lead to reduced basal metabolism and rapid weight gain. Thyroxin is a hormone produced by the thyroid gland that plays a crucial role in regulating metabolism. When thyroxin levels are low, the body's metabolism slows down, resulting in reduced calorie burning and energy expenditure. This can lead to weight gain, as the body is not able to efficiently burn calories. Therefore, low levels of thyroxin can have a significant impact on basal metabolism and contribute to rapid weight gain.

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  • 25. 

    Which hormone plays a vital role in growth and stimulates body metabolism?

    • Thyroxine

    • Testosterone

    • Oestrogen

    • Adrenaline

    Correct Answer
    A. Thyroxine
    Explanation
    Thyroxine is a hormone produced by the thyroid gland that plays a crucial role in growth and development. It regulates the body's metabolism, influencing how the body uses energy and controls various functions such as heart rate, digestion, and body temperature. Thyroxine is essential for normal growth and development, especially during childhood and adolescence. It promotes the growth of bones, muscles, and organs, and helps maintain overall body metabolism.

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  • Current Version
  • Jun 12, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 15, 2018
    Quiz Created by
    Hodgesd

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