Phys Hormones Flashcards

1
Q

Name the hypothalamus proteins and opeptides

A
  • TRH
  • CRH
  • GnRH
  • somatostatin
  • GHRH
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2
Q

What is TRH?

A
  • thyrotropin releasing hormone

- stimulates secretion of TSH and prolactin

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3
Q

What is CRH?

A
  • croticotropin releasing hormone

- stimulates secretion of ACTH

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4
Q

What is GnRH?

A
  • gonadotropin releasing hormone

- stimulates LH and FSH

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5
Q

What is somatostatin?

A

-inhibits secretion of growth hormones

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6
Q

What is GHRH?

A
  • growth hormone releasing hormone

- stimulates secretion of growth hormone

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7
Q

What are the anterior pituitary protein and peptides?

A
  • TSH
  • FSH
  • LH
  • Growth hormone
  • Prolactin
  • ACTH
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8
Q

What is TSH?

A

Thyroid stimulating hormone

-stimulates synthesis and secretion of thyroid hormones

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9
Q

What is FSH?

A
  • follicle-stimulating hormone
  • stimulates sperm maturation in sertoli cells
  • stimulates follicular development and estrogen
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10
Q

What is LH?

A

Luteinizing hormone

  • stimulates testosterone synthesis in Leydig cells
  • stimulates ovulation, formation of corpus luteum, estrogen and progesterone synthesis
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11
Q

What is growth hormone?

A

Stimulates protein synthesis and overall growth

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12
Q

What is prolactin?

A

Stimulates milk production and secretion

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13
Q

What is ACTH?

A

Adrenocorticotropic hormone

-stimulates synthesis and secretion of adrenal cortical hormones (cortisol, androgens, aldosterone)

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14
Q

What are the posterior pituitary proteins and peptides?

A

Oxytocin and vasopressin/ADH

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15
Q

What is oxytocin?

A

Stimulates milk ejection and uterine contractions

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16
Q

What is vasopressin?

A

Stimulates water reabsorption in conducting ducts and constriction of arterioles

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17
Q

What are the thyroid proteins and peptides?

A

Calcitonin

18
Q

What is calcitonin?

A

Decreases serum Ca2+

19
Q

What is the parathyroid protein and peptide?

A

Parathyroid hormone

20
Q

What is parathyroid hormone?

A

-increases serum Ca2+

21
Q

What are the placenta proteins and peptides?

A
  • HCG

- HPL

22
Q

What is HCG?

A
  • human chorionic gonadotropin

- stimulates estrogen and progesterone synthesis in corpus luteum of early pregnancy

23
Q

What is HPL?

A

Human placental lactose not

-has growth hormone-like and prolactin-like actions during pregnancy

24
Q

What are the pancreas proteins and peptides?

A

Insulin and glucagon

25
Q

What is insulin?

A

B cells

-decrease blood glucose

26
Q

What is glucagon?

A

Alpha cells

-increases blood glucose

27
Q

What is the kidney protein/peptide and what does it o?

A

Renin

-catalyze conversion of angiotensinogen to angiotensin I

28
Q

What are the adrenal cortex steroids?

A
  • cortisol
  • aldosterone
  • DHEA and androstenedione
29
Q

What is the action of cortisol?

A
  • stimulates gluconeogenesis
  • inhibits inflammatory response
  • suppresses immune system
  • enhance vascular responsiveness to catecholamines
30
Q

What is the action of aldosterone?

A

-increases renal Na+ reabsorption, K+ secretion, and H+ secretion

31
Q

What is the action of DHEA and androstenedione?

A

Stimulates spermatogenesis

Stimulates male secondary sex characteristics

32
Q

What is the steroid that comes from the testes? What is its action?

A
  • testosterone
  • stimulates spermatogenesis
  • stimulates male secondary sex characteristics
33
Q

What are the steroids that come from the ovaries?

A

Estradiol and progesterone

34
Q

What is the action of estradiol?

A
  • stimulates growth and development of female reproductive system
  • follicular phase of menstrual cycle
  • development of breasts
  • prolactin secretion
  • maintains pregnancy
35
Q

What is the main action of progesterone?

A

Stimulates luteal phase of menstrual cycle

-maintains pregnancy

36
Q

What are the steroids from the corpus luteum?

A

Estradiol and progesterone

37
Q

What are the steroids from the placenta?

A

Estradiol and progesterone

38
Q

What are the steroids from the kidney? What is its action?

A

1,25-dihydroxycholecalciferol

  • increases intestinal absorption of Ca2+
  • bone mineralization
39
Q

What are the amine hormones from the hypothalamus? What is its action

A
  • dopamine or prolactin-inhibiting factor

- inhibit secretion of prolactin

40
Q

What are the amine hormones from the thyroid?

A
  • triiodothyronine (T3)

- L-thyroxine (T4)

41
Q

What is the action of T3 and T4?

A
  • stimulates skeletal growth
  • oxygen consumption
  • heat production
  • protein utilization
  • fat utilization
  • carbohydrate utilization
  • perinatal maturation of the CNS
42
Q

What are the amine hormones from the adrenal medulla?

A

Norepinephrine and epinephrine