Biopsychology

Question 1

The Endocrine system- Hypothalamus
(No Hormone but Effect)

Answer 1

Effect- Stimulates and controls the release of hormones from the Pituitary Gland.

Question 2

The Endocrine system- Pituitary Gland (Master Gland)
(Hormone+Effect)

Answer 2

Hormone- Anterior (ACTH) - Stimulates the Adrenal cortex and the release o Cortisol during the stress response.
Posterior- oxytocin - Responsible for uterus contractions during childbirth.

Question 3

The Endocrine system- Pineal Gland
(Hormone+Effect)

Answer 3

Melatonin- Responsible for important biological rhythms including the sleep-wake cycle.

Question 4

The Endocrine system-Thyroid Gland
(Hormone+Effect)

Answer 4

Thyroxine- Responsible for regulating metabolism.

Question 5

The Endocrine system-Adrenal Gland
(Hormone+Effect)

Answer 5

Adrenal Medulla- adrenaline and noradrenaline - Hormones in the fight or flight response.
Adrenal cortex- cortisol- Stimulates the release of glucose to provide the body with energy while suppressing the immune system.

Question 6

The Endocrine system- Ovaries
(Hormone+Effect)

Answer 6

Controls the regulation of the female reproductive system including the menstrual cycle and pregnancy.

Question 7

The Endocrine system- Testes
(Hormone+Effect)

Answer 7

Responsible for the development of male sex characteristics during puberty while also promoting muscle growth.

Question 8

The Fight or Flight response.

Answer 8

1)A person enters a stressful/dangerous situation.
2) The Amygdala is activated which sends a distress signal to the. hypothalamus.
3)Hypothalamus activates the SAM pathway- the pathway running to the adrenal medulla and the sympathetic nervous system (SNS).
4)The SNS stimulates the adrenal medulla part of the adrenal gland.
5) The adrenal medulla secretes the hormones adrenaline and noradrenaline into the bloodstream.
6)Adrenaline causes a number of physiological changes to prepare the body for fight or flight.
PHYSIOLOGICAL CHANGES
-Increased Heart Rate
-Increased breathing rate
-pupil dilation
-Sweat production
-Reduction of non-essential functions (e.g. digestive system, urination, salivation).