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endocrine physiology the pituitary gland the hypothalamic control

Endocrine Physiology The Pituitary Gland The Hypothalamic Control. The Pituitary gland (hypophysis):. ? Small gland (? 1cm diameter; ? 0.5 to 1 gm weight).. ? Lies in sella turnica, a bony cavity at the base of the brain.. ? Connected to the hypothalamus by the pituitary stalk or (hypophysial; infundibulum)..

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endocrine physiology the pituitary gland the hypothalamic control

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    3. The Pituitary gland (hypophysis):

    4. The anterior pituitary lobe (adenohypophysis)

    5. The anterior pituitary gland cells

    6. The anterior pituitary gland cells

    7. 2) The posterior pituitary lobe (neurohypophysis)

    8. Relationship between the Hypothalamus & the Pituitary gland

    9. Hypothalamic control of pituitary secretions

    10. Hypothalamic Control of I: Anterior Pituitary Gland

    11. Relationship with anterior pituitary gland

    12. Relationship with the anterior pituitary gland (continued)

    13. Relationship with the anterior pituitary gland (continued)

    14. Hypothalamic control of anterior pituitary secretions

    15. Hypothalamic control of anterior pituitary secretions

    16. Hypothalamic hormones Hypothalamus

    17. Hypothalamic Control of II: Posterior Pituitary Gland

    18. Relationship with the posterior pituitary gland

    19. Relationship with the posterior pituitary gland cont.

    20. Relationship with the posterior pituitary gland (continued)

    22. Control of hypothalamic secretions

    24. General Functions of the hypothalamus

    25. Anterior Pituitary Gland hormones

    26. Anterior Pituitary Hormones

    27. Anterior Pituitary Hormones

    28. Anterior pituitary hormones

    29. Anterior Pituitary Hormones

    30. The anterior pituitary hormones (continued)

    31. Feedback Control of the Anterior Pituitary Anterior pituitary & hypothalamic secretions are controlled by negative feedback inhibition by their target gland hormones. Negative feedback at 2 levels: Target gland hormone can act on the hypothalamus & inhibit secretion of its releasing hormones. Target gland hormone can act on the anterior pituitary & inhibit its response to the releasing hormone.

    32. Feedback Control of the Anterior Pituitary (continued) Short feedback loop: Retrograde transport of blood from anterior pituitary to the hypothalamus. Hormone released by anterior pituitary inhibits secretion of releasing hormone. Positive feedback effect: During the menstrual cycle, estrogen stimulates LH surge.

    33. Higher Brain Function and Pituitary Secretion Axis: Relationship between anterior pituitary & a particular target gland. Pituitary-gonad axis. Hypothalamus receives input from higher brain centers. Psychological stress affects: Circadian rhythms. Menstrual cycle.

    34. Growth hormone

    35. Growth hormone (GH)

    36. Synthesis, transport, & mechanism of action of GH

    37. Functions of growth hormone: ? cellular sizes & ? mitosis (no.). ? tissue growth & organ size. Does not act directly on bone & cartilage.

    38. Role of GH in growth of bone & cartilage (continued)

    39. Role of GH in growth of bone & cartilage (continued)

    40. Functions of growth hormone (continued)

    41. Role of GH in promoting protein synthesis

    42. Role of GH in promoting protein synthesis:

    44. Role of GH in Fat metabolism:

    45. Role of GH in Carbohydrate metabolism

    46. Role of GH in Carbohydrate metabolism:

    47. Role of GH in Carbohydrate metabolism (continued)

    49. Control of GH secretion:

    50. Control of GH secretion (continued)

    51. Requirement for GH promoting actions:

    52. Abnormalities of GH secretion - 1. Panhypopituitarism:

    53. Abnormalities of GH secretion - 1. Panhypopituitarism:

    54. Abnormalities of GH secretion - 1. Panhypopituitarism:

    55. Abnormalities of GH secretion - 1. Panhypopituitarism:

    56. Abnormalities of GH secretion - 2. ? GH secretion:

    57. Abnormalities of GH secretion - 2. ? GH secretion:

    58. Abnormalities of GH secretion - 2. ? GH secretion:

    59. Prolactin

    60. Prolactin hormone (PRL)

    61. Prolactin hormone (PRL) (continued)

    62. Action of Prolactin

    63. Action of Prolactin (continued)

    64. Control of Prolactin secretion

    65. Control of Prolactin secretion (continued)

    66. Abnormalities of Prolactin secretions decreased prolactin secretion:

    67. Abnormalities of Prolactin secretions Hyperprolactinemia:

    68. Abnormalities of Prolactin secretions Hyperprolactinemia:

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