Are you aware of Internal environment and homeostasis? If you have learned about the process, there are a lot of things that take place when it comes to the human body and its adaptation to changes. Do you feel like you know enough to help you pass this test? Well take up the quiz below and get to find out for sure.
True
False
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Tubular reabsorption
Tubular secretion
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Decrease blood pressure
Increase blood pressure
No change blood pressure
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True
False
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Larger in volume than the plasma volume
One of the extracellular fluids in the body
Part of the internal environment
The region found between cells
All of the above
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Gap junctions between adjacent cardiac muscle cells
Nerves from the pacemaker region that synapse on individual cardiac muscle cells
Paracrine agent released from cardiac muscle cells
Synapses between adjacent cardiac muscle cells
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True
False
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Blood vessel length
Blood vessel radius
Blood vessel viscosity
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Autoregulation of arteriolar resistance
Baroreceptor reflexes
Chemoreceptor reflexes
Kidney regulation of blood volume
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ADH is secreted by the pituitary
GFR is reduced
Renin is secreted by the kidneys
All of the above
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Decreases alveolar surface tension
Inhibits the diffusion of gases due to partial pressure differences
Is produced in overabundance in the respiratory distress syndrome of newborns
Provides an adhesive surface to which inhaled particles stick
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Blood will pass into the left ventricle from the aorta during diastole
Blood will not pass into the right ventricle from the right atrium
The ejection of blood into the left ventricle will be enhanced
The ejection of blood through the valve during systole will be restricted
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Aldosterone
Angiotensin II
Increased sodium intake
All of the above
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True
False
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Blood sugar drops during starvation
Body temperature rises during fever
The acidity of the extracellular fluid remains the same as diet changes
An individual slips into irreversible shock
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Has a range of 290 to 310 mOsmoles
Is critical for maintaining fluid compartmentalization
Is important for proper cell function
Is equal to extracellular fluid osmolarity
All of the above
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Increasing depth of respiration
Vigorous walking
An increase in ventricular contraction strength
All of the above
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Interstitial fluid
Plasma
Both
Neither
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Calcium ions
Chloride ions
Potassium ions
Sodium ions
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Systole
Diastole
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True
False
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500 mm Hg
250 mm Hg
100 mm Hg
70 mm Hg
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Hemoglobin content
Hypoxic ventillary response
Hypercapnic ventilatory response
Ventilation-perfusion coupling of gas exchange
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Left atrium
Left ventricle
Right atrium
Right ventricle
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The permeability of ions is altered
The Na+ / K+ ATPase pumps have limited action
The gap junctions no longer facilitate conduction
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Decreasing arterial blood pressure
Decreased plasma concentration of ADH
Increased plasma concentration of angiotensin II
Vasodilation of the afferent arterioles to the glomerular capillaries
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Bicarbonate ions dissolved in the blood plasma
Bicarbonate ions in the erythrocyte
Carbon dioxide bound to hemoglobin
Carbon dioxide dissolved in the blood plasma
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Increased cardiac output overwhelms the low pressure pulmonary circulation and increased capillary filtration occurs across the pulmonary capillaries
Decreased plasma volume and increased hematocrit increases pulmonary vascular resistance causing pulmonary hypertension and increased pulmonary capillary filtration
Increased pulmonary vascular resistance occurs with decreased PO2 resulting in pulmonary hypertension and increased pulmonary capillary filtration
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Cardiac muscle fiber length
Circulating epinephrine
SA node activation
Sympathetic stimulation
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Blood continues to flow through the heart even when its not beating
Contraction of the smooth muscle in the atrial walls maintains arterial pressure
Skeletal muscle contraction compress the arteries, maintaining arterial pressure
The elastic fibers in the walls of the arteries that were stretched during systole maintain the arterial pressure as they relax during diastole
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Increases, increase, increase, increase
Decreases, decrease, decrease, decrease
Increases, increase, decrease, decrease
Decreases, decrease, increase, increase
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True
False
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Cardiac output
End diastolic volume
End systolic volume
Stroke volume
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All valves into and out of the heart are closed
Blood is being ejected from the ventricles
Blood is flowing from the atria to the ventricles
All of the above
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Actively transports NaCl into the surrounding interstitial fluid
Is impermeable to water
Is found in the renal cortex
Drains into the proximal convoluted tubule
Both A and B
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Increased arterial oxygen partial pressure
Increased circulating concentrations of glucocorticoids
Increased circulating erythropoietin
All of the above
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Glucose
Potassium
Protein
Sodium
Urea
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Decreased reabsorption of sodium
Increased GFR
Increased release of ADH
Decreased renin release
Increased erythropoietin release
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Contraction of the atria
Contraction of the ventricles
Relaxation of the atria
Relaxation of ventricles
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Pulmonary congestion
Peripheral edema
Increased right ventricular pressure
Both A and C
Both B and C
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Closer to diastolic pressure than systolic pressure
Closer to systolic pressure than to diastolic pressure
The average of the two pressures
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Use of this diuretic may help reduce the pre-load on the heart
Use of this diuretic may help increase the effective circulating volume
Use of this diuretic may help increase the after-load on the heart
Use of this diuretic may help reduce the extracellular fluid volume
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Increases the pressure in the alveoli of the lungs
Increases the pressure in the intrapleural space of the thoracic cavity
Decreases the pressure in the alveoli of the lungs
Decreases the pressure in the atmosphere
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Tidal volume
Vital capacity
Residual volume
Respiratory volume
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Autonomic nervous system
Central nervous system
Peripheral nervous system
Both A and C are correct
All of the above
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Decreases the active reabsorption of sodium from the collecting ducts
Decreases the membrane permeability of the epithelial cells in the collecting ducts to water
Increases the active reabsorption of sodium from the collecting ducts
Increases the membrane permeability of the epithelial cells in the collecting ducts to water
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Calcium
Chloride
Potassium
Sodium
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Increases and water accumulates in the tissue spaces
Decreases and water accumulates in the tissue spaces
Increases and water accumulates in the tissue cells
Decreases and water accumulates in the tissue cells
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