Biology Fsc Part 1 Online Test With Answers

Biology Fsc Part 1 Online Test

Sr. # Questions Answers Choice
1 The receptors which detect ups and down in blood pressure are. Baroreceptors Nociceptors Thermoreceptors Pacinian corpuscles
2 The flow of blood creates rhythmical througbbbing of arteries .Which is called. Pulse Anaphylaxis Blood pressure  Spurt
3 The hapatic ortal vein collects blood from Spleen Alimentary canal Reproductive system Both a and b
4 small coronary veins drain directly into. Left Atrium Right Atrium Left ventricle Right ventricle
5 The systemic circulation suppplies oxygenated blood to all systems of the body EXCEPT. Respiratory system Hepatic portal system Immune system Nervous system
6 The velocity of blood flow in capillaries is. 450-500 mm/sec 01 mm /sec 250 mm/sec 300 mm/sec
7 When metabolic activyt in a tissue rises, oxygen decrease and CO2 increse in its interstitial fluid, How does homeostatic feedback respond to this situation  Vasodilation Vasoconstriction  Both a and b Stimulation of Vagus nerve
8 The sphinctes that reguate the amount of blood flowing through capillaries are. Pre capillary sphincters Post capillary sphincters Intercapillary sphincters Intra capillary sphincters
9 ST-segment of ECG -wave form lasts for about 0.12 sec 0.08 sec 0.20 sec 0.40 sec
10 The component of ECG wave form from the beginnign QRS complex to the end of T-wave is QT interval ST-segment PR-segment P- Wave
11 The component of ECG-wave form that shows beginning of atrial depolarization is P-wave T-wave QRS PR-segment
12 The device machine that records electricla signals generqted by cardiac impulses is caled. Electrocardiogram Electrocardiograph Electroencephalogram Echocardiogram
13 In an adult abotu 8000 litres of blood move........of blood vessels daily,  96 km 960 km 96000 km 9600 km
14 In an adult human .................litres blood move through blood vessels every day. 8000 5 800 80,000
15 The average heartrate of an adult is about.........times per minute 60 70 80 100
16 A battery-operated devices, which emits electrical signals hat trigger normal heart beats is called. Artificial pace maker Natural pace maker Dialyzer Stent
17 Small cluster of cardiac muscle cells, located at the lower portion of interatrial septum is. AV node SA node Bundle of his Purkinje fibres
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