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A & P 2 LAB > 1/29- Endocrine System > Flashcards

1/29- Endocrine System Flashcards

1
Q

What is the endocrine system?

A

System of endocrine glands that secrete hormones

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2
Q

What are the characteristics of endocrine glands?

A

No ducts

Secrete into blood

Hormones- chemical messengers

  • deliver a message
  • give structure an instruction to do something

Has a target

Works hand in hand with nervous system to control and regulate the human body

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3
Q

What is the target?

A

Received message of hormone

Target organ
Target tissue
Target cell- TRUE TARGET

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4
Q

What are pituitary glands also called?

A

Hypophysis

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5
Q

What is the anterior pituitary gland called?

A

Adenohypophysis

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6
Q

What is the posterior pituitary gland called?

A

Neurohypophysis

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7
Q

What connects the hypothalamus and the posterior pituitary gland?

A

Infundibulum

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8
Q

What are the characteristics of the thyroid gland?

A

Has fluid filled follicules that contains a protein

Simple cuboidal epithelium

Cells in between the follicular cells are parafollicular cells

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9
Q

What do the follicular cells secrete?

A

Triiodothyronine or T3

Tetraiodothyronine or T4 or Thyroxine

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10
Q

What do the parafollicular or c cells secrete?

A

Calcitonin

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11
Q

What is the characteristic of the pancreas?

A

Both endo (circular structures) and exo (digestive function)

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12
Q

What are the 3 major hormones islets of langerhans or pancreatic islets produce?

A

1) insulin
2) Glucagon
3) Somatostatin

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13
Q

What is the outer gland called in the adrenal gland or suprarenal gland?

A

Andrenal cortex

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14
Q

What is the inner gland of the adrenal gland or suprarenal gland called?

A

Adrenal medulla

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15
Q

What are the 3 parts of the adrenal cortex?

A

Outside to inside

1) zona glomerulosa
2) zona fasciculata
3) zona reticularis

Beneath is adrenal medulla

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16
Q

What does the zona glomerulosa secret?

A

Aldosterone (needed to live)

17
Q

What does zona fasciculata secrete?

A

Cortisol or hydrocortisone

18
Q

What does zona reticularis secrete?

A

Androgens (weak version of testosterone)

20
Q

What does the parathyroid gland secrete?

A

Parathyroid gland (PTH)

21
Q

What are the gonads?

A

Testicles

Ovaries

22
Q

What are the cells of the testies called?

A

Seminiferous tubules

23
Q

What are the cells in between the seminiferous tubules?

A

Leydig cells or interstitial cells (produce testosterone)

24
Q

What are the cells in the ovaries?

A

Granulosa cells

Corpus Luteum

25
Q

What do the granulosa cells secrete?

A

Estradiol

- classic estrogen

26
Q

What does the corpus Luteum secrete?

A

Progesterone

29
Q

What does the adrenal medulla secret?

A

Epinephrine/ Adrenaline

Norepinephrine/ Noradrenaline

A & P 2 LAB (7 decks)

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