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Life Science > Endocrine System > Flashcards

Endocrine System Flashcards

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1
Q

Homeostasis

A

To maintain a constant internal environment in the body

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2
Q

Exocrine gland definition

A

Releases hormones into the blood stream

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3
Q

Endocrine gland definition

A

Release hormones via duct

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4
Q

All 7 Endocrine glands

A
  1. Pineal gland
  2. Pituitary gland
  3. Thyroid gland
  4. Adrenal gland
  5. Pancreas
  6. Ovaries
  7. Testes
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5
Q

Hormone definition

A

Chemical messenger released in response to change by endocrine gland

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6
Q

Hypothalamus location

A

Between thalamus and pituitary gland

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7
Q

Hormone released by hypothalamus

A

Anti-diuretic hormone

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8
Q

Pituitary gland location

A

Beneath hypothalamus

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9
Q

5 Hormones released by anterior lobe

A

TSH (Thyroid Stimulating Hormone)
STH (Somatotropic hormone)
FSH (Follicle Stimulating Hormone)
LH (Luteinising Hormone)
Prolactin

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10
Q

Hormones released by posterior lobe

A

ADH (Anti-Diuretic Hormone)
Oxytocin

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11
Q

Function and trigger of TSH

A
  • Stimulate thyroid to secrete thyroxin
  • Low levels of thyroxin
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12
Q

Function of STH

A
  • Growth hormone that promotes growth of skeleton/muscle
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13
Q

Cause and effect of Gigantism

A
  • Over secretion of STH as a child
  • Abnormally tall
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14
Q

Cause and effect of Dwarfism

A
  • Under secretion of STH as a child
  • Abnormally short
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15
Q

Cause and effect of Acromegaly

A
  • Tumour in pituitary gland causing over secretion of STH as an adult
  • Hands, feet and facial bones grow
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16
Q

Function of prolactin

A

Stimulate mammary gland to produce milk after birth

17
Q

Fuction of oxytocin

A

Causes contractions during birth

18
Q

Positive feedback

A

A hormone is released causing another hormone to release

19
Q

Function and effect of Anti Diuretic Hormone

A

Increases permeability of nephron tubules
- keeping more water

20
Q

Negative feedback

A

When there is a low detection of something in the blood, there will be hormones released to maintain homeostasis

21
Q

Cause and effect of Diabetes Insipidus

A
  • low ADH released
  • dehydration
22
Q

Function of hormone secreted from the Thyroid

A

Thyroxin maintains basal metabolic rate

23
Q

The 5 effects of hyperthyroidism

A
  1. Increased heart rate and metabolism
  2. High body temperature
  3. Unintentional weight loss
  4. Fidgety/anxious
  5. Protruding eyeballs
24
Q

The 4 effects of hypothyroidism

A
  1. Weight gain
  2. Poor memory
  3. Intolerance to cold
  4. Feeling tired
25
Q

The 5 causes of myxoedema

A
  1. Thickened skin
  2. Puffy face
  3. Mental decline
  4. Weight gain
  5. Sever lethargy (really bad fatigue)
26
Q

The 4 causes of Cretinism

A
  1. Hypothyroidism as a child
  2. Lack of neural development
  3. Stunted growth
  4. Mental retardation

Life Science (3 decks)

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