Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
Fxns of Hypothalamus?
|
- regulate and control 5 Basic LIFE PROCESSES;
1. BP & electrolyte composition 2. body temp 3. energy metab 4. reproduction 5. emergency responses (ANS) |
|
|
What 3 Major output pathways does the HT integrate?
|
1) ANS fxn
2) ENDOCRINE fxn 3) MOTIVATION & BEHAVIOR |
|
|
What are the 3 zones of the HT?
|
- Periventricular zone
- Medial zone - Lateral zone |
|
|
(AP)Thyroid Stimulating Hormone (TSH)
reg. hormone? Fxn? |
TRH (from HT)
T3/T4 secretion from Thyroid |
|
|
(AP) Adrenocorticotropic hormone (ACTH)
reg. hormone? FXN? |
Corticotropin Releasing Hormone (CRH) (from HT)
steroid production |
|
|
(AP) LH & FSH
reg hormone? FXN? |
GnRH (from HT)
Gametogenesis & sex hormone production |
|
|
(AP)Growth Hormone (GH)
|
GHRH & Somatostatin (inhib)
linear growth |
|
|
(AP)Prolactin
|
Prolactin inhibitory hormone (DA)
Lactogenesis |
|
|
(PP) ADH (vasopressin)
|
vasoconstriction
(water reabsorption in Kidney) |
|
|
(PP) Oxytocin
|
uterine contraction, milk ejections
|
|
|
Affects of "ventromedial nucleus" and "lateral HT" on feeding behavior?
(HT & FEEDING behavior) |
Ventromedial nucl ---> decr. feeding
Lateral HT ---> INCR. feeding |
|
|
Osmometric thirst?
|
- triggered by INCR [solutes] in bld (hypertonicity)
- stim CNX - HT mechano-receptor - ADH |
|
|
Volumetric Thirst
|
- trigger is "hypovolemia" (DECR volume)
- DECR BP---> ANGIO II |
|
|
Anterior HT controls INCR or DECR in body temp?
|
DECREASE
(vasoDILATE bld vessels) |
|
|
Posteriot HT controls INCR or DECR in body temp?
|
INCREASE
(vasoCONSTRICT bld vessels) |
