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;
11 Cards in this Set
- Front
- Back
|
Describe a negative feedback system.
|
Neurons in the hypothalamus release TRH (Thyroid releasing hormone) which causes the release of TSH (Thyroid stimulating hormone). TSH binds to receptors of epithelial cells of the thyroid. When this happens, secretion and sythesis of thyroid hormones takes place. When blood concentrations of these hormones reaches above threshold, TRH secreting neurons are inhibited.
|
|
|
What are the two ways in which oxygen in the blood is carried?
|
Oxygen is either carried by hemoglobin in red blood cells or it is dissolved in the plasma.
|
|
|
What is the pathway of a fertilized egg.
|
An egg moves from the ovary and into the fallopian tubes and ultimately into the uterus.
|
|
|
What is Tidal Volume?
|
The volume of air inspired or expired during each normal, quiet respiratory cycle.
|
|
|
What is Residual Volume?
|
The volume of air remaining in the lungs at the end of a maximal expiration.
|
|
|
What is inspiratory reserve volume?
|
The extra volume of air that can be inspired with maximal effort after reaching the end of a normal, quiet inspiration.
|
|
|
What is expiratory reserve volume?
|
The extra volume of air that can be expired with maximum effort beyond the level reached at the end of a normal, quiet expiration.
|
|
|
What is vital capacity?
|
The volume of gas that can be expelled from the lungs from a position of full inspiration, with no limit to the duration of expiration, it is equal to the inspiratory capacity plus the expiratory reserve volume.
|
|
|
What is total lung capacity?
|
The volume of air contained in the lungs at the end of a maximal inspiration
|
|
|
Where are aldosterone receptors located? What is the effect of aldosterone?
|
Aldosterone receptors are located in the adrenal cortex. Aldosterone will increase sodium levels in the collecting ducts by opening sodium channels. This will ultimately increase water reabsorption as well.
|
|
|
Name the hormones released by the kidney. What are their stimuli and effects?
|
The kidney releases erythropoeitin and calcitrol. It also releases the enzyme renin. The stimuli for erythropoeitin is
|
