10 - Hormones (Velkommen til helvede) Flashcards
(17 cards)
What are the three “crines”?
Autocrine
Paracrine
Endocrine
(APE)
What do autocrine transmitters have an effect on?
The same cell type from where the transmitter was released
What do paracrine transmitters have an effect on?
Nearby cells in the same tissue.
What do endocrine transmitters travel in?
The blood
What do endocrine transmitters have an effect on?
Target cells with necessary protein receptors
What volume are hormones produced in?
Small quantities
Hormone secretion can be (3)?
Acute
Chronic
Episodic
What does it mean if hormone secretion is acute?
Secretion is sudden, in response to a stimulus
What does it mean if hormone secretion is chronic?
Small quantities are secreted over an extended period of time
What is an example of episodic hormone secretion?
Oestrogen and progesterone during the menstrual cycle
What are 10 functions of the endocrine system?
1) Metabolism
2) Food intake & digestion
3) Tissue maturation
4) Ion regulation
5) Water balance
6) Heart rate & blood pressure
7) Control of blood glucose & other nutrients
8) Control of reproductive functions
9) Uterine contractions & milk letdown
10) Immune system regulation
What are 9 glands of the endocrine system?
1) Pineal gland
2) Hypothalamus
3) Pituitary gland (ant + post)
4) Thryoid
5) Parathyroid
6) Thymus
7) Adrenal
8) Pancreas
9) Gonads (ovaries/testes)
What are 3 similarities between the nervous and endocrine systems?
Both associated with the brain
May use the same chemical messengers
Two systems are cooperative
What are 3 differences between the nervous and endocrine systems?
Transport: axon/blood
Response speed: instant-milliseconds/delayed-seconds
Duration: milliseconds-seconds/minutes/days
What connects the hypothalamus to the brain?
Infundibulum
What is the scary word for the connection between the infundibulum and the posterior pituitary?
Hypothalamohypophysial tract
HYPOTHALAM O HYPO PHYSIAL
