Endocrine Flashcards

0
Q

Paracrine

A

Local effects but not on the cell that secretes the chemicals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

Autocrin

A

Chemicals that exert their effects on the same cells that secrete them

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Hormone

A

Chemical substances secreted by cells into extracellular fluids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Leukotrienes

A

Signal chemicals involved with inflammation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Prostaglandin

A

Multiple targets and effects, Dilation or constriction of smooth muscle, Enhance pain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Mechanisms of Hormone Activity

A
Alter target cell activity
Open or Close membrane Ion Channels
Stimulate protein synthesis
Activate/Deactivate enzymes
Stimulates Mitosis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

List Non-Polar Hormones

A

Steroids

Thyroid Hormones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

List Polar Hormones

A

Insulin
Epinephrine
Amino Acid Based (mostly)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Pancreas

List hormones, Actions, What it’s regulated by

A

Insulin - Lowers blood glucose, regulated by blood glucose

Glucagon - Raises blood glucose, regulated by blood glucose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Adrenal Medulla

A

Epinephrine and Norepinephrine - Raise blood glucose level; increase metabolic activities;constrict certain blood vesses, regulated by nervous system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Adrenal Cortex

A

Glucocorticoids - Raise blood glucose level, regulated by ACTH
Mineralocorticoids - Promote reabsorption of Na+ and excretion of K+ in kidneys, regulated by K+ in blood and angiotensin II

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Testes

A

Androgens - Support sperm formation; promote development and maintenance of male secondary sex characteristics, regulated by FSH, LH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Ovaries

A

Estrogens - Stimulate uterine lining growth; promote development and maintenance of female secondary sex characteristics, regulated by FSH, LH
Progestins - Promote uterine lining growth, regulated by FSH, LH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Pineal Gland

A

Melatonin - Involved in biological rhythms, regulated by light/dark cycles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

3 steps of membrane receptor activity

A
  1. Reception
  2. Transduction
  3. Response
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Hypothalamus

A

Hormones released from posterior pituitary and hormones that regulate the anterior pituitary
Releasing/Inhibiting hormone

16
Q

Posterior Pituitary

A

Oxytocin - Stimulates Contraction of uterus and mammary gland cells, regulated by nervous system
ADH - Promotes retention of water by kidneys, regulated by water/salt balance

17
Q

Anterior Pituitary

A
GH - Stimulated growth
Prolactin - Stimulates milk production
FSH - Stimulates production of ova/sperm
LH - Stimulates ovaries/testes
TSH - Stimulates thyroid gland
ACTH - Stimulates adrenal cortex to secrete glucocorticoids
All regulated by Hypothalamus
18
Q

Thyroid Gland

A

T3/T4 - Stimulate and maintain metabolic processes, regulated by TSH
Calcitonin - Lowers blood Ca++, regulated by Ca++ in blood

19
Q

Parathyroid Glands

A

PTH - Raises blood Ca++, regulated by Ca++ in blood

20
Q

Humoral Function

A

Reaction by changing blood levels of critical ion/nutrients

21
Q

Hormonal Function

A

Releasing hormones in response to a hormone

22
Q

What does the Diencephalon Do?

A
Autonomic control center
Regulates cardiac/smooth/gland secretion
Control Homeostasis
Thermostat
Regulate hunger/thirst
Hormones for posterior pituitary
Releasing hormones for anterior pituitary
23
Q

Adenohypophysis

A

Anterior Pituitary

24
Q

Neurohypophysis

A

Posterior Pituitary

25
Q

Infundibulum

A

Pituitary Stalk

26
Q

Somatotropin

A

Produced by somatotrophs in anterior pituitary

27
Q

Growth Hormone

A

Promotes protein systhesis
Promotes use of fats for fuels
Stimulates epiphyseal plate of long bones
Promotes increased muscle mass