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Quiz

L34 The pituitary gland and the hypothalamus

Mer Scott 17 Fragen 5,0 (1 Bewertung)

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  1. 1Choose the correct statements about the pituitary gland.
    1. AThe secretion of hormones from the pituitary gland is controlled by the hypothalamus.
    2. BEach part (anterior/posterior) has a distinctive mechanism for hormone secretion.
    3. CPituitary hormones always stimulate the secretion of hormones by other endocrine glands.
    4. DThe anterior pituitary gland is connected to the hypothalamus via neurons.
  2. 2Choose the correct label.Bild zu Frage 2
    1. Astored hormone
    2. Bsynapse to adrenohypophysis
    3. Chormone target site
  3. 3Where are the posterior pituitary hormones made?
    1. AThe cell body of the neuron in the hypothalamus.
    2. BThe axon endings in the posterior pituitary.
    3. CThe cells of the adrenohypophysis.
  4. 4Choose the incorrect statement about the mechanism of hormone release from the posterior pituitary hormone.
    1. AThe stimulus for release is a neural stimulation from the hypothalamus.
    2. BNeural stimulation causes ADH (antidiuretic hormone) or oxytocin to be released into the anterior pituitary gland.
    3. CNeural stimulation causes ADH (antidiuretic hormone) or oxytocin to be released into the blood stream.
    4. DAn increase in action potential firing frequency causes neural stimulation.
  5. 5Choose the correct statements about antidiuretic hormone (ADH) and oxytocin.
    1. AThey are released from the anterior pituitary gland.
    2. BThey are peptide hormones.
    3. CThey travel in the blood bound to a carrier.
    4. DThey attach to membrane receptors and cause a secondary messenger to be produced.
  6. 6[blank_start]Antidiuretic hormon[blank_end] stimulates the [blank_start]kidney[blank_end] to reabsorb water when the body dehydrates.
    Oxytocin stimulates contraction of [blank_start]uterine[blank_end] muscles during [blank_start]childbirth[blank_end], and stimulates [blank_start]milk[blank_end] release in [blank_start]breastfeeding[blank_end].
    These are both made in the [blank_start]hypothalamus[blank_end] and stored in the [blank_start]posterior pituitary gland[blank_end] until needed.
    1. AAntidiuretic hormone
    2. Bkidney
    3. Cbladder
    4. Duterine
    5. Epelvic
    6. Fchildbirth
    7. Gmilk
    8. Hbreastfeeding
    9. Ihypothalamus
    10. Jposterior pituitary gland
    11. Kanterior pituitary gland
  7. 7Oxytocin release during childbirth is a positive feedback loop.
    1. ARichtig
    2. BFalsch
  8. 8Choose the incorrect statements about ADH.
    1. AThe stimulus for ADH release is a decrease in ECF concentration.
    2. BThe sensors for changes in ECF concentration are the osmoreceptors in the hypothalamus.
    3. CThe hypothalamus serves as both the integrator and sensor for the ADH negative feedback system.
    4. DThe target cells for ADH are specific kidney and specific liver cells.
    5. EADH regulates concentration of body fluids by controlling water excretion.
  9. 9Someone with ADH in their bloodstream will produce clear, dilute urine in excess.
    1. ARichtig
    2. BFalsch
  10. 10When ADH is present, water channels open in the tubular cells of the kidney so that water molecules can move down their osmotic gradient to a region of high solute(urea) in the ECF.
    1. ARichtig
    2. BFalsch

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Beschreibung
• Draw a diagram to illustrate the structure, location and connections of the hypothalamus and the pituitary gland. • State the major effects of the anterior and posterior pituitary hormones. • Explain how the hypothalamus controls the release of hormones from the posterior and anterior pituitary glands.
Sprache
English
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44
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