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Flashcards in Hormones Deck (26):
1

PARACRINES

ACT LOCALLY ON NEIGHBOURING CELLS

2

AUTOCRINES

ACT LOCALLY ON THE SAME CELL

3

HOW ARE CIRCULATING HORMONES INACTIVATED?

BY THE LIVER

4

HOW ARE CIRCULATING HORMONES EXCRETED?

BY THE KIDNEY

5

CHEMICAL CLASSES OF HORMONE

LIPID SOLUBLE
WATER SOLUBLE

6

TYPES OF LIPID SOLUBLE HORMONES

THYROID HORMONES
STEROID HORMONES
NITRIC OXIDE

7

TYPES OF WATER SOLUBLE HORMONES

AMINE HORMONES
PEPTIDE/PROTEIN HORMONES
EICOSANOID HORMONES

8

EXAMPLES OF AMINE HORMONES

DECARBOXYLATION AND MODIFCATION OF TRYPTOPHAN AND TYROSINE

9

EXAMPLES OF PEPTIDE/PROTEIN HORMONES

AMINO ACID POLYMERS
GLYCOPROTEINS

10

EXAMPLES OF EICOSANOID HORMONES

PROSTAGLANDINS
LEUKOTRIENES

11

HOW ARE EICOSANOID HORMONES DERIVED?

DERIVED FROM ARACHIDONIC ACID

12

ACTION OF LIPID SOLUBLE HORMONES

DIFFUSION THROUGH THE INTERSTITIAL FLUID
BINDS TO THE TARGET CELL ON THE PLASMA MEMBRANE
ACTIVATION OF THE RECEPTOR HORMONE COMPLEX, ALTERING GENE EXPRESSION
PROTEIN TRANSLATED WITH NEW GENE

13

ACTION OF WATER SOLUBLE HORMONES

BINDING TO THE TARGET CELL CAUSES THE ACTIVATION OF A G PROTEIN.
G PROTEIN ACTIVATES ADENYLATE CYCLASE THAT PRODUCES CYCLIC AMP (cAMP) FROM ATP
cAMP ACTIVATES KINASES WHICH ACTIVATES PROTEINS

14

WHAT DEACTIVATES cAMP?

PHOSPHODIESTERASE

15

THE RESPONSIVENESS OF A TARGET CELL DEPENDS ON...

HORMONE CONCENTRATION WITHIN THE BLOOD
NUMBER OF TARGET CELLS ON THE PLASMA MEMBRANE
INFLUENCES OF OTHER HORMONES

16

CONTROL OF HORMONE SECRETION

SIGNALS FROM THE NERVOUS SYSTEM
CHEMICAL CHANGES WITHIN THE BLOOD
OTHER HORMONES

17

TYPES OF HORMONES

PARACRINE
AUTOCRINE
CELL TO CELL
NEURAL SIGNALLING
ENDOCRINE

18

FUNCTIONS OF HORMONES

REPRODUCTION
STRESS RESPONSE
BEHAVIOUR
METABOLISM
GROWTH AND DEVELOPMENT

19

CATECHOLAMINES

ADRENALINE
NORADRENALINE
DOPAMINE

20

THYROID HORMONES

T2
T4

21

HORMONE SECRETION

CONTINUOUS
PULSATILE
CIRCADIAN
EPISODIC

22

STIMULI THAT REGULATE SECRETION

NEURAL
HORMONAL
HUMOURAL

23

PARTS OF THE PITUITARY

POSTERIOR PITUITARY
ANTERIOR PITUITARY

24

WHAT DO THE HYPOTHALAMIC NEURONS SYNTHESISE?

7 HYPOPHYSIOTROPIC HORMONES TO THE ANTERIOR PITUITARY
ADH and OXYTOCIN TO THE POSTERIOR PITUITARY

25

HORMONES SECRETED FROM THE HYPOTHALAMUS TO THE ANTERIOR PITUITARY

DOPAMINE
VIP
TRH
SOMATOSTATIN

26

HORMONES SECRETED FROM THE HYPOTHALAMUS TO THE POSTERIOR PITUITARY

ADH
OXYTOCIN