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EXSS 175 Exam 2 The Endocrine System Questions and Answers (100% Pass)
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EXSS 175 Exam 2 The Endocrine System Questions and Answers (100% Pass)
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©PREP4EXAMS @2024 [REAL EXAM DUMPS] Wednesday, July 17, 2024 1:27 AMEXSS 175 Exam 2 The Endocrine System
Questions and Answers (100% Pass)
endocrine system - ✔️✔️-regulation of body activities by releasing hormones
-composed of ductless glands that synthesize and secrete chemical messages directly into the
bloodstream
hormones - ✔️✔️chemical messengers transported in blood from endocrine gland to organ
-more than 50 types in body
-only affects target cells, have specific hormone receptors
-hormone output controlled by:
--nervous system input
--chemical change in blood
-amount released dependent on need
homeostasis - ✔️✔️-condition of equilibrium (balance) in the body's internal environ
-endocrine system helps maintain the body homeostasis mostly through negative feedback
systems
negative feedback system - ✔️✔️-reverses a change in a controlled condition
negative feedback control - ✔️✔️-negative feedback: output of a pathway inhibits inputs to the
pathway
glands - ✔️✔️-exocrine
-endocrine
exocrine glands - ✔️✔️-secretion to ducts that carry the secretion into body cavities, lumen of
organs, or outside of the body
--ex: sudoriferous, sebaceous, mucous, digeestive
endocrine glands - ✔️✔️-secretion into extracellular space for diffusion into blood
--pituitary
--thyroid
--parathyroid
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, ©PREP4EXAMS @2024 [REAL EXAM DUMPS] Wednesday, July 17, 2024 1:27 AM
--adrenal
--pineal
hormone functions - ✔️✔️-regulation
-growth and development
-reproductive processees
-circadian rhythms
pituitary gland - ✔️✔️-location: hypophyseal fossa of sella turcica
-structure:
--0.5 in
--suspended from hypothalamus
--anterior/posterior pituitary
--pars intermedia
-master gland: controls other endocrine glands
-controlled by the hypothalamus
--link b/w nervous and endocirne system
--input from various areas of the brain
-regulatory center
hypophyseal portal system - ✔️✔️-anterior pituitary hormone secretion: regulated by
hormones from hypothalamus
--plexi (network of capillaries)
--portal veins
-hypothalamus communicates w/ posterior pituitary: hypothalamohypophyseal tract
anterior pituitary gland - ✔️✔️-75% of mass
-synthesizes, stores, secretes hormones
-tropins or tropic hormones
somatotrophs - ✔️✔️(anterior pituitary gland)
-growth and metabolism (liver)
--human growth hormone (hGH)
thyrotrophs - ✔️✔️(anterior pituitary gland)
-govern thyroid gland activity
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