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physio final practice exam-PART 2
Terms in this set (40)
The definition of respiration is characterized by oxygen binding hemoglobin or carbon dioxide becoming bicarbonate.
you will find 23% of carbon dioxide attached to...
What inherited defect of CFTR channels causes mucus to thicken thus decreasing fluid movement in the airways?
what law states that total pressure exerted by a mixture of gas is the sum of pressure of each individual gas?
what are the only functional cells in circulation?
What are the globin proteins that are apart of most adult hemoglobin?
Alfa & Beta versions
When Plasminogen is converted into Plasmin what does it do to a clot?
which hormone do kidneys most help produce synthesis?
Where does most regulation of GFR occur
at the afferent arteriole
what structure in the nephron reabsorbs proportionally more solutes than water?
loop of Henley
-secrete DTH & testosteron
Female=no chemical signal
-secrete hormone called Mullerian Inhibiting Factor (stops mullerian embryonic tissue from developing)
>forms epididymis, Vas deferens, semilunar valve
When DHT is not present, what happens to the bipotential external genitalia
takes of female charteristics
What gas is abundant in the atmosphere and generally not soluble at sea level
During inspiration what do the atmospheric, intrapulmonary, intraplural pressure look like?
atmospheric pressure is higher than both intraplural and intrapulmonary pressure
what does elevated carbon dioxide levels (hypercapnia) lead to?
-cell committed to a particular pathway
-uncommitted: Embryonic stem cells are completely uncommitted
What is produced when there is a low RBC count?
RBC what respiration produces ATP
what below is a cytokine
-colony stimulating factor
what pressure influences GFR & averages about 55mmHg
-uses 3 levels of active transport
-excretion of substances more efficient
-maintains homostatic balance
What cells send out paracrine signals to increase sympathetic activity in response to monitoring low flow rate of blood?
Macula densa cells
what is filtration coefficient affected by?
overall surface area
What phase is follicular in the ovarian cycle? ( Hint: 2 total phases in ovarian cycle)
What hormone is used to produce the Graafian follicle in the ovarian cycle?
Does the respiratory system require a large or small surface area?
- large surface area of respiratory organs
- BUT small space to meet O2 and CO2 requirements
What are the three basic processes for the kidneys, that occur in the nephron?
Change Resistance in afferent arterioles
>increase resistance in afferent arterioles (vasoconstriction) GFR increases
>decrease resistance in afferent arterioles (vasodilation) GFR decreases
ANG 2 effects
-raises Blood pressure
-increase ADH (helps hold in water so volume raises BP, raises blood volume = good filtration = helps kidney function)
-stimulates release of aldosterone
the ability to become either sex...
Sex determination depends on the presence or absence of ________ gene
SRY gene (sex determining region of the Y chromosome)
hormone for ovulation
FSH(follicle stimulating hormone)
-follicular phase 1
-stimulates the production of FSH receptors on the granulosa cells
ability to grab an ion & bind it up so its not available in a reaction
Cardiac output equation
CO=HR x SV
cardiac output = heart rate x stroke volume
CO = 72 beats/min x 70 ml/beat
Length-tention relationships (frank-starling law of the heart)
more blood into the heart = more blood that will go out of the heart
as the radius increases
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