Exam 3 Flashcards
Where the respiratory zone of the lungs begins
- Respiratory bronchioles
- Tertiary bronchi
- Trachea
- Pharynx
respiratory bronchioles
A very high heart rate is referred to as
- bradycardia
- tachycardia
- bradybunching
- cardyoutputing
tachycardia
If TPR or total peripheral resistance rises we would expect that cardiac output would
- decrease
- increase
- not change
decrease
Respiratory control centers are located in the
- midbrain and medulla
- medulla and pons
- pons and cerebral cortex
medulla and pons
A statin drug such as lipitor is expected to
- Lower the level of LDL cholesterol
- Raise the level of LDL cholesterol
- Lower the level of HDL cholesterol
lower to the level of LDL cholesterol
Which would make the oxygen hemoglobin curve shift right?
- increased H+ concentration
- increased pH
- decreased temperature
- decreased CO2
- None of the answers are correct.
increased H+ concentration
It is possible to attach up to ______ O2 molecules to each hemoglobin molecule.
4
In very vigorous exercise cardiac output
- will rise to higher levels
- will decrease to allow greater blood flow to the muscles
- usually remains the same but heart rate rises
will rise to higher levels
The primary function of the proximal tubule is
- filtration.
- reabsorption of ions, some organic molecules, and water.
- secretion of acids and ammonia.
- secretion of drugs.
- adjusting the urine volume.
reabsorption of ions, some organic molecules, and water.
The most powerful respiratory stimulus for breathing in a healthy person is ________.
- loss of oxygen in the tissues
- increase in blood CO2
- blood become more basic
- blood becoming more acidic
increase in blood CO2
Angioplasty refers to a procedure to:
- open up a blood vessel using a catheter with a balloon
- create a bypass of clogged blood vessels
- relieve the symptoms of asthma
open up a blood vessel using a catheter with a balloon
Hypotension refers to:
- “a heart attack”
- a pulmonary disorder
- low blood pressure
- high blood pressure
low blood pressure
Carbon dioxide is more soluble in water than oxygen. To get the same amount of oxygen to dissolve in plasma as carbon dioxide, you would have to
- decrease the temperature of the plasma.
- increase the partial pressure of oxygen.
- decrease the partial pressure of nitrogen.
- increase the rate of plasma flow through the lungs.
- decrease the alveolar ventilation rate.
decrease the temperature of the plasma.
In the plasma, the quantity of oxygen in solution is ________.
- only about 1.5% of the oxygen carried in blood
- about equal to the oxygen combined with hemoglobin
- greater than the oxygen combined with hemoglobin
- not present except where it is combined with carrier molecules
only about 1.5% of the oxygen carried in blood
The mechanism that establishes the medullary osmotic gradient depends most on the permeability properties of the \_\_\_\_\_\_\_\_. *nephron loop *glomerular filtration membrane *collecting duct *distal convoluted tubule
nephron loop
Which of the disorders below is characterized by destruction of the walls of the alveoli
producing abnormally large air spaces that remain filled with air during exhalation?
*pneumonia
*atherosclerosis
*emphysema
emphysema
Which kidney process is always active and always requires energy to occur?
- filtration
- reabsorption
- secretion
- excretion
secretion
The plasma concentration at which all of the renal carriers for a given substance are saturated is called the \_\_\_\_\_\_\_\_. *renal threshold *renal capsule *renal cap *renal tipover
renal threshold
Oxygen and carbon dioxide are exchanged in the lungs and through all cell membranes by ________.
- osmosis
- diffusion
- filtration
- active transport
diffusion
Blood pressure determinations makes use of sounds named after:
- Korotkoff
- Frank
- Starling
- Bernard
Korotkoff
Which of the following counteracts the movement of bicarbonate ions from the RBC?
- the Bohr effect
- chloride shifting
- release of hydrogen ion
chloride shifting
With the Bohr effect, more oxygen is released because a(n) ________
- decrease in pH (acidosis) strengthens the hemoglobin-oxygen bond
- decrease in pH (acidosis) weakens the hemoglobin-oxygen bond
- increase in pH (alkalosis) strengthens the hemoglobin-oxygen bond
- increase in pH (alkalosis) weakens the hemoglobin-oxygen bond
decrease in pH (acidosis) weakens the hemoglobin-oxygen bond
Asthma is a condition where
- pulmonary blood flow stops
- a goal of treatment is to constrict the airways
- excessive cholesterol is found in the blood
- excessive mucous production is commonly seen
excessive mucous production is commonly seen
White coat hypertension refers to
- temporary high blood pressure when in a health care office
- high blood pressure due to tight fitting garments
- high blood pressure due to taking medicine
temporary high blood pressure when in a health care office
If the Tm for a particular amino acid is 120 mg/100 ml and the concentration of that amino acid
in the blood is 230 mg/100 ml, the amino acid will ________.
*be completely reabsorbed by the tubule cells
*be actively secreted into the filtrate
*be completely reabsorbed by secondary active transport
*appear in the urine
appear in the urine
A rightward shift in the dissociation curves means that hemoglobin has\_\_\_\_\_\_\_\_\_\_\_ affinity for oxygen. *lower *higher *no change in
lower