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WorksheetsPhysiology quizzies
Total questions: 15
Worksheet time: 8mins
Which of the following is the primary function of the respiratory system?
To supply oxygen to tissues
To remove carbon dioxide from the blood
To regulate body temperature
To synthesize hemoglobin
The main muscle responsible for inspiration is:
Diaphragm
External intercostals
Sternocleidomastoid
Internal intercostals
The volume of air left in the lungs at the end of maximal expiratory effort is called:
Tidal volume
Residual volume
Expiratory Reserve volume
Inspiratory Reserve volume
Assertion: Tuberculosis occurs more commonly at the base of lungs. Reason: The higher oxygen level facilitates the growth of tubercular bacilli.
Both assertion and reason are true and reason is the correct explanation.
Both assertion and reason are true but reason is not the correct explanation.
Assertion is true but reason is false
Assertion is false but reason is true.
The anatomical dead space refers to:
Areas of the lung where no air enters
The volume of the respiratory tract that does not participate in gas exchange
Alveolar regions where oxygen is not absorbed
The volume of air in the trachea
What is the normal pacemaker of the heart?
AU node
SA node
Purkinje fibers
Bundle of His
Which of the following is the main determinant of preload?
Heart rate
End-diastolic volume
Stroke volume
Peripheral resistance
What is the major ion responsible for the plateau phase of the cardiac action potential?
Sodium
Calcium
Potassium
Chloride
In a healthy individual, which vessel has the highest total cross-sectional area?
Arteries
Arterioles
Capillaries
Veins
Which of the following structures has the fastest conduction velocity in the heart?
SA node
AU node
Bundle of His
Purkinje fibers
Which of the following is wrong
Na+ K+ ATPase is an example of primary active transport
Na+- Glucose Symport is an example of secondary active transport
Wallerian degeneration is the degeneration of axons proximal to the cut site
Retrograde
Depolarisation of nerve occurs due to
Closing of Na+ influx
Closing of voltage gated Na+ channels causing cessation of Na+ efflux
Opening of voltage gated Na+ channels causing Na+ influx
Opening of voltage gated Na+ channels causing Na+ efflux
Which of the following has slowest conduction
A alpha
B fibres
gamma
C fibres
Which of the following statements is false
Arneth count is counting lobes of neutrophils
Cellular immunity is due to T lymphocytes
Hemophilia is a disorder
Deficiency of Vit B12 causes megaloblastic anemia
Assertion : Venular end of the capillaries favour absorption Reason: Capillary hydrostatic pressure in the venular end is less
A and R is true
A is true but R is false
A is false but R is true
A and R are false
