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    Exam Review

    1. Which of the following is a key difference between the endocrine system and the nervous system in terms of signaling?
      A)
      The endocrine system uses hormones for signaling, while the nervous system uses neurotransmitters.
      B)
      The endocrine system uses electrical signals, while the nervous system uses chemical signals.
      C)
      The nervous system generates responses that take longer to occur compared to the endocrine system.
      D)
      Both systems use hormones for signaling but at different speeds.
    2. How does the nervous system influence pituitary gland secretions?
      A)
      The nervous system has no influence on pituitary gland secretions.
      B)
      The nervous system controls pituitary secretions through adrenal gland signals.
      C)
      The hypothalamus sends signals to the pituitary gland through releasing and inhibiting hormones.
      D)
      The pituitary gland secretes hormones independently of the nervous system.
    3. Which hormone released by the hypothalamus directly influences the pituitary's secretion of thyroid-stimulating hormone (TSH)?
      A)
      Growth hormone-releasing hormone (GHRH)
      B)
      Gonadotropin-releasing hormone (GnRH)
      C)
      Corticotropin-releasing hormone (CRH)
      D)
      Thyrotropin-releasing hormone (TRH)
    4. What is the primary anatomical connection between the hypothalamus and the pituitary gland?
      A)
      The hypothalamus and pituitary gland communicate through the pineal gland.
      B)
      The hypothalamus is directly connected to the anterior pituitary through blood vessels in the hypophyseal portal system.
      C)
      The hypothalamus is not directly connected to the pituitary gland.
      D)
      The pituitary gland controls the hypothalamus through neural impulses.
    Page 1 of 12

    Exam Review

    1. A patient with a recent head trauma exhibits polyuria and polydipsia. Which hormone deficiency might be responsible for these symptoms?
      A)
      Antidiuretic hormone (ADH)
      B)
      Aldosterone
      C)
      Oxytocin
      D)
      Cortisol
    2. Which type of hormone is derived from cholesterol and acts by entering the target cell to influence gene expression?
      A)
      Catecholamines
      B)
      Peptide hormones
      C)
      Thyroid hormones
      D)
      Steroid hormones
    3. Which white blood cell is primarily responsible for producing antibodies?
      A)
      Monocytes
      B)
      Neutrophils
      C)
      B lymphocytes
      D)
      T lymphocytes
    4. Which cell type is primarily responsible for the production of antibodies in the immune system?
      A)
      B cells
      B)
      Macrophages
      C)
      T helper cells
      D)
      Neutrophils
    Page 2 of 12

    Exam Review

    1. In the context of the hypothalamus-pituitary-adrenal (HPA) axis, what is the primary role of the hypothalamus?
      A)
      To increase blood glucose levels directly
      B)
      To store and release oxytocin
      C)
      To secrete corticotropin-releasing hormone (CRH)
      D)
      To produce aldosterone
    2. How does the endocrine system primarily differ from the nervous system in terms of communication?
      A)
      The endocrine system is responsible for voluntary actions.
      B)
      Both systems use the same chemical messengers.
      C)
      The endocrine system is faster than the nervous system.
      D)
      The endocrine system uses hormones, while the nervous system uses electrical impulses.
    3. What is the primary role of the hypothalamic-pituitary-adrenal (HPA) axis?
      A)
      To manage calcium levels in the blood.
      B)
      To control blood glucose levels through insulin secretion.
      C)
      To regulate thyroid hormone levels.
      D)
      To regulate stress response via hormone secretion.
    4. Which white blood cell type is primarily involved in allergic reactions?
      A)
      Monocytes
      B)
      Basophils
      C)
      Neutrophils
      D)
      Eosinophils
    Page 3 of 12

    Exam Review

    1. How are pituitary secretions controlled by the nervous system?
      A)
      Through conscious voluntary control
      B)
      By the autonomic nervous system directly stimulating the pituitary gland
      C)
      By feedback from peripheral organs only
      D)
      Through direct neural connections with the hypothalamus
    2. Which of the following glands is responsible for regulating calcium levels in the blood?
      A)
      Parathyroid gland
      B)
      Thyroid gland
      C)
      Pituitary gland
      D)
      Adrenal gland
    3. A patient with acromegaly is found to have a pituitary adenoma. What hormone is most likely overproduced in this condition?
      A)
      Adrenocorticotropic hormone (ACTH)
      B)
      Prolactin
      C)
      Thyroid-stimulating hormone (TSH)
      D)
      Growth hormone (GH)
    4. What is the primary function of lymph nodes?
      A)
      Filtering lymph and housing lymphocytes
      B)
      Producing red blood cells
      C)
      Facilitating nutrient absorption
      D)
      Transporting oxygen
    Page 4 of 12

    Exam Review

    1. Which of the following hormones is NOT released by the anterior pituitary?
      A)
      Adrenocorticotropic hormone (ACTH)
      B)
      Antidiuretic hormone (ADH)
      C)
      Thyroid-stimulating hormone (TSH)
      D)
      Growth hormone (GH)
    2. Which of the following is a primary chemical characteristic distinguishing steroid hormones from non-steroid hormones?
      A)
      Non-steroid hormones include lipid-based molecules.
      B)
      Non-steroid hormones contain fatty acids.
      C)
      Steroid hormones are derived from cholesterol.
      D)
      Steroid hormones are composed of amino acids.
    3. Which of the following accurately describes the chemical makeup of steroid hormones?
      A)
      Steroid hormones are derived from cholesterol.
      B)
      Steroid hormones are composed of nucleotides.
      C)
      Steroid hormones are composed of fatty acids.
      D)
      Steroid hormones are composed of amino acids.
    4. Which hormone is secreted by the anterior pituitary gland and stimulates the adrenal cortex?
      A)
      Thyroid-stimulating hormone (TSH)
      B)
      Adrenocorticotropic hormone (ACTH)
      C)
      Growth hormone (GH)
      D)
      Prolactin
    Page 5 of 12

    Exam Review

    1. Which of the following correctly describes the anatomical relationship between the pituitary gland and the hypothalamus?
      A)
      The hypothalamus is posterior to the pituitary gland.
      B)
      The hypothalamus is located within the sella turcica.
      C)
      The pituitary gland is superior to the hypothalamus.
      D)
      The pituitary gland is connected to the hypothalamus by the infundibulum.
    2. How does the pituitary gland's secretion of hormones differ from that of the adrenal gland?
      A)
      The adrenal gland's hormones are primarily steroid-based.
      B)
      The adrenal gland's hormone release is regulated by thyroid hormones.
      C)
      The pituitary gland's hormone release is directly controlled by the hypothalamus.
      D)
      The pituitary gland produces hormones in response to blood glucose levels.
    3. Which of the following describes a feedback mechanism involving the hypothalamus and anterior pituitary?
      A)
      Negative feedback from insulin inhibits GH release from the anterior pituitary.
      B)
      Positive feedback from cortisol increases CRH release from the hypothalamus.
      C)
      Positive feedback from aldosterone increases ACTH release from the anterior pituitary.
      D)
      Negative feedback from thyroid hormones inhibits TRH release from the hypothalamus.
    4. In a stressful situation, which axis is primarily activated to increase cortisol levels?
      A)
      Hypothalamic-pituitary-adrenal axis
      B)
      Hypothalamic-pituitary-gonadal axis
      C)
      Renin-angiotensin-aldosterone system
      D)
      Sympathetic nervous system
    Page 6 of 12