Behavioural Endocrinology Flashcards
What is the endocrine system?
The body’s slow chemical communication system; a set of gland that secrete hormones into the blood
What is endocrinology?
The study of hormones, the endocrine system m, and their role in the physiology of the body
What are the principle functions of the endocrine system?
- maintenance of the internal environment in the body
- integration and regulation of growth
- control maintenance and instigation of sexual reproduction
What is a hormone?
A chemical released from living cells that travels some distant to target tissue to have a biological effect
Where is hormones found?
- usually secreted in small amounts
- transported in blood
- target cells have specific receptors
- regulates cell reaction by affecting gene expression
How do hormones travel?
Via bloodstream to target cells
Endocrine vs nervous system
- major communication systems in body
- intergrate stimuli and responses to changes in external and internal environment
- both are crucial to coordination functions of highly differentiated cells, tissues and organs
What is behavioural endocrinology?
Study of relationships between hormones and behaviour
What is testosterone?
Responsible for secondary sexual characteristics
Who did the first endocrinology experienment?
Arnold berthold 1949
What was Arnold bertholds experiment?
- Background nauturalistic observations of changes in behaviour of roosters
- Castrated roosters (6)
- Re- implanted a testis in 2 roosters
- Transplanted a testis from another bird in 2 roosters
- Left 2 castrated roosters to develop into Capons
What is oestrogen?
Involved in ovulation
What is progesterogen?
Involved in bonding maintence of pregnancy
What is the menstral cycle?
3 main stage:
- menses
- follicular phase
- luteal phase
What is ovulation?
Human ovulation = cryptic
Once a month regulated by homemones
