Lecture 28 Flashcards
(21 cards)
what stimulates the hormones release?
sleep and exercise
where is the hormone released from?
- Hypothalamus (GHRH) Growth hormone releasing hormone
- Anterior pituitary (GH) Growth hormone
- Liver (IGF) insulin- like growth factor
where are the target cells of the hormone located?
Growth Hormone (GH)- liver, skeletal muscle and adipose
IGF-1 (insuline- like growth factor)
- all body cells
what effect(s) does the hormone cause ?
GH: increase in fuel in blood (for cells to use to grow)
GH: stimulates liver to release IGF-1
IGF-1: stimulates all cells to grow
what stops the hormone release?
- Growth hormone inhibiting Hormone (hypothalamus)
- negative feedback control to hypothalamus
- IGF-1: negative feedback to pituitary and hypothalamus
what Hormone release comes from the Hypothalamus, anterior pituitary and thyroid gland
TRH, TSH and Thyroid hormone
What stimulates this axis of hormone release from the TRH,TSH and Thyroid hormone?
exercise and cold stress
Where are the hormones of the TRH, TSH and thyroid hormone release from
Thyroid gland, anterior pituitary and hypothalamus
What are the target cells and effects of thyroid hormone
thyroid hormone effects most body cells
- increase in metabolic rate
- increase growth and development
How is thyroid hormone release stopped?
remove the exercise or cold stress stimulus + negative feedback control
what is the stress response of hormones
Helping your body deal with stress in one or more of the following ways
- making fuel available for cells to use
- ensuring blood pressure is high enough
maintaining extra-cellular fluid (ECF) osmolarity
What hormone release comes from the hypothalamus, anterior pituitary and adrenal gland
CRH, ACTH and Cortisol
what stimulates this axis of hormone CRH, ACTH and Cortisol.
Day- night rhythm and stress
where are CRH, ACTH and Cortisol released from
Hypothalamus, anterior pituitary and adrenal gland
what are the target cells and effects of cortisol?
- helps maintain normal blood pressure
- increased immunity
how is cortisol released and stopped
remove the stress stimulus and negative feedback control
What hormone comes from the Hypothalamus- posterior pituitary
Anti- diuretic Hormone (ADH) “stop urinating hormone”
What stimulates ADH release?
Dehydration and stress
Where is ADH released from
Hypothalamus
What are the target cells and effects of ADH?
Kidneys, hypothalamus and bloodvessels
it increases blood pressure
what stops ADH release?
remove stimulus
