Male Reproductive System Quiz
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Questions and Answers

Which of the following is NOT a function of testosterone?

  • Development of male secondary sex characteristics
  • Sperm production
  • Increased muscle mass
  • Regulation of menstrual cycle (correct)

    • What is the primary function of follicle-stimulating hormone (FSH) in males?

  • Promoting sperm production (correct)
  • Regulating the menstrual cycle
  • Stimulating the production of testosterone
  • Developing male secondary sex characteristics

    • Which hormone is responsible for thickening the uterine lining (endometrium) in preparation for a fertilized egg?

  • Progesterone (correct)
  • Testosterone
  • Luteinizing hormone (LH)
  • Estrogen

    • Where is estrogen primarily produced?

    <p>Ovary (D)</p> Signup and view all the answers

    What is the primary function of estrogen?

    <p>Controls developmental changes in females, such as breast development and menstruation. (D)</p> Signup and view all the answers

    Which of the following can be a consequence of low testosterone levels?

    <p>Brittle bones (C)</p> Signup and view all the answers

    What is the function of luteinizing hormone (LH) in males?

    <p>Stimulating testosterone production (B)</p> Signup and view all the answers

    Which of the following is NOT a potential symptom of low estrogen levels?

    <p>Heavy or irregular menstruation (C)</p> Signup and view all the answers

    What is the primary role of hormones in the body?

    <p>To regulate the activity of cells and tissues (B)</p> Signup and view all the answers

    Which hormone is primarily responsible for regulating mood and behavior?

    <p>Serotonin (C)</p> Signup and view all the answers

    Which gland produces the hormone associated with feelings of calmness, empathy, and affection?

    <p>Pituitary Gland (D)</p> Signup and view all the answers

    What is the name of the male sex gland responsible for producing testosterone?

    <p>Testes (C)</p> Signup and view all the answers

    Which hormone is primarily responsible for controlling stress in the body?

    <p>Cortisol (A)</p> Signup and view all the answers

    Flashcards

    Estrogen

    A hormone responsible for female sexual development and reproductive cycles.

    Effects of High Estrogen

    High levels of estrogen can lead to heavy menstruation, breast tenderness, and weight gain.

    Effects of Low Estrogen

    Low estrogen can cause missed menstruation, mood swings, and night sweats.

    Serotonin

    A hormone that regulates mood and behavior; imbalances can cause depression or anxiety.

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    Cortisol

    A steroid hormone from adrenal glands that regulates stress levels in the body.

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    Hormones

    Chemical molecules released into the bloodstream by glands that affect cell activity.

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    Endocrine Glands

    Glands that produce and release hormones into the bloodstream.

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    Follicle Stimulating Hormone (FSH)

    A hormone necessary for sperm production (spermatogenesis) in males.

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    Luteinizing Hormone (LH)

    A hormone that stimulates testosterone production in males.

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    Testosterone

    A hormone produced by the testes that aids in sperm production and male characteristics.

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    Progesterone

    A hormone that regulates the menstrual cycle and prepares the uterus for pregnancy.

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    Effects of Low Testosterone

    Can cause less body hair, lower muscle mass, and hot flashes.

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    Study Notes

    Male Reproductive System

    • The male reproductive system produces, maintains, and transports sperm and semen.
    • It discharges sperm during mating.
    • It produces and secretes male sex hormones.
    • The key role of the male reproductive system is to produce sperm cells in the testes and release them inside a female.

    Testes

    • Males have two testes.
    • Testes make millions of sperm cells and hormones.

    Scrotum

    • A sac of skin that holds the testes.
    • Keeps the testes a few degrees cooler than the body's temperature by adjusting its position.

    Penis

    • Deposits sperm into the vagina during mating.
    • Also used for urination.
    • Made of spongy tissues and blood vessels.

    Vas Deferens/Sperm Duct

    • Transports sperm away from the testes.

    Urethra

    • A hollow tube that transports urine from the bladder to the outside of the body.
    • Also transports sperm.

    Glands

    • Provide liquid in which sperm can swim.
      • Seminal vesicle - secretes a fluid that makes up most of the semen components.
      • Prostate gland - secretes highly alkaline milky fluid as part of the semen.
      • Bulbourethral gland - secretes thick and clear mucus that lubricates and neutralizes any trace of acidic urine in the urethra.

    Bladder

    • Temporarily stores urine in the body.
    • Helps expel urine from the body by sending nerve signals to the nervous system which tells the brain that you need to go to the toilet.

    Epididymis

    • Stores sperm for maturation and transport it to vas deferens.

    Female Reproductive System

    • The female reproductive system produces eggs in the ovaries, which are transported via the oviducts.
    • Male sperm fertilizes the egg to produce an embryo.
    • The embryo can implant in the uterus wall and develop into a baby.
    • The process is regulated by different hormones produced in the ovaries and pituitary gland.

    Ovary

    • The female reproductive system has two ovaries.
    • Contains undeveloped eggs (ova) present from birth.
    • Makes hormones that regulate the menstrual cycle.
    • One ovary releases a mature egg as part of the menstrual cycle.

    Oviduct

    • Two tubes connecting the ovaries to the uterus.
    • Also known as fallopian tubes.
    • Lined with hair-like cells called cilia to help move the egg from the ovary to the uterus.

    Uterus

    • Muscular with a soft lining.
    • Fertilized egg can implant in the uterus wall.
    • An embryo develops into a baby over the course of pregnancy.
    • The lining of the uterus wall comes away as a period if an egg is not fertilized by sperm.

    Cervix

    • A ring of muscle that keeps the baby in the uterus during pregnancy.
    • Dilates to open during labor.

    Vagina

    • Muscular tube connecting the cervix to the outside of the body.
    • Site of sexual intercourse and where the baby exits during childbirth.
    • Passageway for menstrual blood to leave the body.

    Hormones in the Body

    • Hormones are chemical molecules released into the bloodstream by endocrine glands.

    • They affect cell and tissue activity in the body.

    • Hormones communicate between endocrine glands and target organs.

    Endocrine Glands

    • Produce and release hormones.
      • Examples include the Hypothalamus, Pituitary, Thyroid, Parathyroid, Adrenal, Pancreas, Testes, Ovaries.

    Male Reproductive Hormones

    • Follicle-stimulating hormone (FSH) is needed for spermatogenesis.
    • Luteinizing hormone (LH) stimulates testosterone production.
    • Testosterone is for sperm production and male secondary sex characteristics development.

    Testosterone

    • Produced by the testes.
    • Controls developmental changes in males, including deeper voice, facial and pubic hair, and increased muscle and bone strength.
    • High levels can cause acne, increased muscle mass, low sperm count, and prostate enlargement.
    • Low levels can cause less body and facial hair, less muscle mass, hot flashes, and brittle bones.

    Female Reproductive Hormones

    • Estrogen is produced by the ovary.
    • Responsible for egg maturation, release, and female secondary sex characteristics development.
    • Produced in the placenta during pregnancy.
    • Progesterone is produced by the Corpus Luteum in the ovary.
    • Regulates the menstrual cycle and prepares the uterine lining for a fertilized egg.

    More Examples of Hormones

    • Serotonin (Pineal Gland): regulates mood, behavior, and psychiatric conditions.
    • Dopamine (Hypothalamus and Adrenal Glands): "feel-good” hormone, creates a sense of pleasure and motivation.
    • Endorphins (Pituitary Gland and Hypothalamus): Helps deal with stress and reduce feelings of pain.
    • Oxytocin (Pituitary Gland): Associated with calmness, empathy, and affection.
    • Cortisol (Adrenal Glands): A steroid hormone that controls stress in the body.
    • Triiodothyronine (T3) (Thyroid Gland): Low levels can cause anxiety and depression.
    • Melatonin (Pineal Gland): Important for sleep cycles and the body's internal clock.

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    Related Documents

    Reproductive and Endocrine System PDF

    Description

    Test your knowledge of the male reproductive system, including the roles and functions of the testes, scrotum, penis, and associated structures. This quiz covers key concepts such as sperm production, hormone secretion, and reproductive anatomy.

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