THE ENDOCRINE
   SYSTEM
Concept 45.3
    The endocrine and nervous systems act individually and
           together in regulating animal physiology

   Coordination of Endocrine and         A prominently known gland the
    Nervous Systems in                     pituitary gland is often known
    Invertebrates                          as the “master” gland of the
   All animals except the simplest        endocrine system. This is so
    invertebrates' reproduction and        because it controls the main
    development are controlled by          functions of all other glands.
    the endocrine system.                 The pituitary gland has 2 lobes
   For example in a molting               the posterior and anterior
    insect, a peptide                      pituitary. Both of which secrete
    neurohormone from the insects          different hormones.
    endocrine                             posterior= Oxytocin and
    system, PTTH, promotes each            antidiuretic hormone.
    successful molt until it reaches      Anterior=
    the final stage.                       prolactin, adrenocorticotropic
   Most hormonal glands are               hormone, thyroid-stimulating
    located in the brain of the            hormone, follicle-stimulating
    animal.                                hormone, luteinizing hormone
Pituitary System

Cross
sections of
the pituitary
gland, with a
labeled
drawing.
Concept 45.4
     Endocrine glands respond to diverse stimuli in regulating
      metabolism, homeostasis, development, and behavior

   Thyroid : consists of lobes on the
    ventral side of the trachea.
   Thyroid hormone refers to a pair of
    similar hormones known as
    Triiodothyronine(T3) and
    Thyroxine(T4), which have
    corresponding iodine atoms T3 has
    3 and T4 has 4.
   The thyroid mainly produces T4
    atoms in humans but the body
    changes them to T3 because
    iodine is dedicated to the
    production of the Thyroid hormone.
   Also a dietary iodine is a must.
    This may be ingested by eating
    seafood or iodized salts with out
    this dietary iodine goiter may occur
    which is a swelling in the neck.
Glands Con’t
   Parathyroid glands regulate          Adrenal glands are
    the release of calcium into the       associated with the kidneys.
    body.                                Made up of two parts, the
   Unregulated release of                outer part known as the
    calcium can result in organ           adrenal cortex, and the
    damage.                               central portion known as the
                                          adrenal medulla.
                                         The adrenal gland also plays
                                          a role in releasing adrenaline
                                          (also known as epinephrine)
                                          when the body senses
                                          danger or is excited.
Sex Hormones
   Sex hormones affect
    growth, development, and
    reproductive cycles. The
    gonads produce three
    hormones which are all
    produced in both genders just
    in different
    proportions, androgens, estro
    gens, and testosterone.
   Testosterone is more
    prominent in males hence the
    deeper tone of voice.
   Estrogen is more prominent
    in females hence larger
    breasts and a higher pitched
    voice
Some Disorders of the
Endocrine
   Diabetes


   Growth disorders


   Osteoporosis


   Thyroid disorders (ex. Thyroid cancer)
Works cited
   http://www.umm.edu
    /endocrin/pitgland.ht
    m

The endocrine system miles connor

  • 1.
  • 2.
    Concept 45.3 The endocrine and nervous systems act individually and together in regulating animal physiology  Coordination of Endocrine and  A prominently known gland the Nervous Systems in pituitary gland is often known Invertebrates as the “master” gland of the  All animals except the simplest endocrine system. This is so invertebrates' reproduction and because it controls the main development are controlled by functions of all other glands. the endocrine system.  The pituitary gland has 2 lobes  For example in a molting the posterior and anterior insect, a peptide pituitary. Both of which secrete neurohormone from the insects different hormones. endocrine  posterior= Oxytocin and system, PTTH, promotes each antidiuretic hormone. successful molt until it reaches  Anterior= the final stage. prolactin, adrenocorticotropic  Most hormonal glands are hormone, thyroid-stimulating located in the brain of the hormone, follicle-stimulating animal. hormone, luteinizing hormone
  • 3.
    Pituitary System Cross sections of thepituitary gland, with a labeled drawing.
  • 4.
    Concept 45.4 Endocrine glands respond to diverse stimuli in regulating metabolism, homeostasis, development, and behavior  Thyroid : consists of lobes on the ventral side of the trachea.  Thyroid hormone refers to a pair of similar hormones known as Triiodothyronine(T3) and Thyroxine(T4), which have corresponding iodine atoms T3 has 3 and T4 has 4.  The thyroid mainly produces T4 atoms in humans but the body changes them to T3 because iodine is dedicated to the production of the Thyroid hormone.  Also a dietary iodine is a must. This may be ingested by eating seafood or iodized salts with out this dietary iodine goiter may occur which is a swelling in the neck.
  • 5.
    Glands Con’t  Parathyroid glands regulate  Adrenal glands are the release of calcium into the associated with the kidneys. body.  Made up of two parts, the  Unregulated release of outer part known as the calcium can result in organ adrenal cortex, and the damage. central portion known as the adrenal medulla.  The adrenal gland also plays a role in releasing adrenaline (also known as epinephrine) when the body senses danger or is excited.
  • 6.
    Sex Hormones  Sex hormones affect growth, development, and reproductive cycles. The gonads produce three hormones which are all produced in both genders just in different proportions, androgens, estro gens, and testosterone.  Testosterone is more prominent in males hence the deeper tone of voice.  Estrogen is more prominent in females hence larger breasts and a higher pitched voice
  • 7.
    Some Disorders ofthe Endocrine  Diabetes  Growth disorders  Osteoporosis  Thyroid disorders (ex. Thyroid cancer)
  • 8.
    Works cited  http://www.umm.edu /endocrin/pitgland.ht m