Endocrine system Flashcards

1
Q

what is the main purpose of the endocrine system

A

To maintain
HOMEOSTASIS in the
body through the use
of hormones.
Also involved in
growth and
development and
sexual
function/reproduction

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2
Q

what is the endocrine glands

A

Pineal gland
Pituitary gland (master gland)
Thyroid gland
Thymus gland
Adrenal gland
Pancreas
Ovaries
Testes

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3
Q

what is the function of the hypothalamus

A

makes hormones to control the pituitary gland. in addition make hormones that are stored in the pituitary gland.

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4
Q

what is the pituitary gland

A

produces hormones that regulate many of the other endocrine glands

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5
Q

what is the thymus

A

releases thymosin which stimulates the t-cell development

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6
Q

what is the function of the pineal gland

A

releases melatonin which is involved in ryhmthatic activities

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7
Q

what is the function of the thyroid

A

produces thyroxine which regulates the metabolism

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8
Q

what are hormones and what are their functions

A

Chemicals secreted by
endocrine glands

  • Regulate the activities of other
    organs and glands
  • Regulate metabolic processes
    involving fats, proteins, and
    carbohydrates
  • Regulate water and electrolyte
    balance
  • Important role in growth &
    reproduction
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9
Q

what is the anterior pituitary gland

A

It is the front lobe of the pituitary gland

regulates growth, metabolism, and reproduction through the hormones that it produces.

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10
Q

what is the posterior pituitary gland

A

posterior pituitary is the back lobe of your pituitary gland, which is a small, pea-sized gland located at the base of your brain below your hypothalamus.

store and releases two hormones: oxytocin and antidiuretic hormone (ADH, or vasopressin)

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11
Q

what is the thyroid gland

A

◦ Butterfly shaped gland in the
neck
◦ Secretes two types of thyroid
hormones (T4 and T3) and
calcitonin

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12
Q

what is the parathyroid gland

A

◦ 4 small glands behind the
thyroid
◦ Secretes parathormone:
◦ Increases amount of calcium
available in blood

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13
Q

what is hyperthyroidism

A

Too much thyroid hormone
Body functions speed up
TX: medication to reduce hormone
production, radioactive iodine, surgery

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14
Q

what is hypothyroidism

A

Hypothyroidism
Too little thyroid hormone
Body functions slow down
TX: thyroid supplement medication

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15
Q

what is diabetes mellitus

A

Pancreas does not produce
enough insulin or insulin is not
used properly by the body..
All body systems may be
affected if blood glucose
levels are not well controlled.

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16
Q

signs and symptoms of diabetes

A
  • Increased thirst
  • Frequent urination (polyuria)
  • Constant hunger
  • Unusual weight loss
  • Extreme fatigue
  • Dry, itchy skin
  • Blurred eyesight
17
Q

what are the 3 types of diabetes and explain

A
  1. Gestational
     occurs during pregnancy
     temporary, but later risk for
     treatment as for other types
  2. Type 1
    often diagnose as a child
    no insulin produced
    need daily insulin injections
  3. type 2
     Usual onset is in adulthood
     Symptoms may be mild & go unnoticed
     Not enough insulin produced or the body does not
    effectively use the insulin produced
18
Q

what is hypoglycemia

A

BLOOD SUGAR < 4MMOL/L
Cause:
 Too much medication (ie: insulin)
 Not enough food consumed/meal delayed
 More physical activity than usual
 The effects of drinking alcohol
Treatment:
 To be directed by nurse (hypoglycemic protocol)
 Some form of “sugar” may be given (dextrose and glucose tablets)

19
Q

what are signs and symptoms of hypoglycaemia

A

Shaky, light-headed, nauseous
Nervous, irritable, anxious
Confused unable to concentrate
Hungry
Tachycardia
Sweaty, headachy
Weak, drowsy
A numbness or tingling in the tongue or lips

20
Q

what is hyperglycaemia

A

BLOOD SUGAR >11 MMOL/L
Cause:
 Improper balance of food, activity, and medications
 Sick or under stress
Long-term treatment:
Adjust medication and/or insulin
Adjust meal plan
Increase physical activity

21
Q

what are S/S of hyperglycaemia

A

Polydipsia
Polyuria
Blurred vision
Drowsiness & fatigue