Week 7 - Hormones Flashcards
1
Q
Role of the pineal gland
A
- Produces melatonin (sleep)
- Entrainment = matching physiological events to environmental oscillation
2
Q
Role of the hypothalamus / pituitary gland
A
- Synthesises hypothalamic releasing hormones
- Posterior pituitary responds to nerve stimulation
- Releases trophic hormone (eg. ADH, Oxytocin, TSH)
3
Q
Role of ADH and Oxytocin
A
- ADH = stimulates re absorption of water by kidneys , stimulates vasoconstriction
- Oxytocin = muscle contraction in uterus during childbirth, elevated levels responded to in social stimulation
4
Q
Where is ACTH (Adrenocorticotropic Hormone) released?
A
- Adrenal Cortex
5
Q
Role of the adrenal medulla
A
- Secretes noradrenaline and adrenaline
6
Q
Relation between prolactin and sexual desire
A
- Sustained levels of prolactin
- Adrenaline and noradrenaline higher at peak with experiment
- Prolactin release is an antagonist, more desire
7
Q
Role of the pancreas
A
-Secretes insulin and glucagon
7
Q
Role of the pancreas
A
-Secretes insulin and glucagon
8
Q
Role of the testes
A
- Secretes androgens (incl small amount from adrenal cortex for women)
- More skeletal and muscle growth
- Enlargement of larynx
8
Q
Role of the testes
A
- Secretes androgens (incl small amount from adrenal cortex for women)
- More skeletal and muscle growth
- Enlargement of larynx
9
Q
Role of the ovaries
A
- Secrete estrogens (also small amount in adrenal cortex)
- Estradiol = breast development, distribution of fat
- Progesterone = Stimulate changes on uterus during menstrual cycle
10
Q
Hormone and Behaviour Link
A
- Behaviour can influence hormone levels
- Testing through removing the source of hormone and artificially adding associated hormone
- Somatic intervention = remove add hormone
- Behaviour change = Sexual behaviour
