StudentAidUnit 11: Human Circulatory System — Mcqs
11th Class Biology · Unit 11: Human Circulatory System
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1.Compared to vein an artery.
2.Bicuspid valve guards the opening between
3.What is the state of bicuspid and tricuspid valves at the end of the first heart sound?
4.By beating at normal speed, our heart pumps how much blood per minute?
5.Closure of tricuspid and bicuspid valves produces sound;
6.SA-node initiates heartbeat in;
7.Systolic pressure in young man is;
8.Blood pressure is highest in___ and blood moves; most slowly in;
9.Instead of normal lubb-dubb sound, a lubb-hiss, lubb-hiss sound indicates;
10.In humans which one is the other system for the transport of materials, then blood circulatory system?
Structure and Functioning of Heart
11.In a healthy person, plasma constitutes about _____ by volume.
12.Which one of the following is not the part of human blood circulatory system?
13.Human heart is situated in the _____ of chest cavity.
14.The human heart is felt to be on the left side of chest because.
15.The sac in which heart is enclosed:
16.The inner layer of pericardium is called:
17.The space between parietal and visceral pericardium is called _____ having how many milliliter of pericardial fluid:
18.Which one of the following is not related to heart wall?
19.Inner visceral pericardium is closely attached to the underlying heart, and is also known as:
20.Inner most layer of heart wall is called:
21.The left and right ventricles are separated by:
22.Mitral valve is present between:
23.The valves which prevent backflow of blood into atria are;
24.Identify the marked structure:
25.The thickness of left ventricle is about__ times more than right ventricle.
26.The vessels which bring oxygenated blood from lungs to the heart are:
27.Aorta supply oxygenated blood to all parts of body except:
28.During ventricular systole blood is pumped to:
29.The longest phase of cardiac cycle is __ and lasts about:
30."Dubb" heart sound is produced when:
31.If the heart valves are not fully closed, turbulence is created, sounds like hiss is called:
32.Sinoatrial node (SA node) is embedded in the upper wall of ____:
33.Small cluster of cardiac muscle cells, located at the lower portion of interatrial septum is:
34.A battery-operated device, which emits electrical signals that trigger normal heart beats is called:
35.The average heart rate of an adult is about ________ times per minute.
36.In an adult human____ litres of blood move through blood vessels every day.
37.In an adult about 8000 litres of blood move ________ of blood vessels daily.
38.The device / machine that records electrical signals generated by cardiac impulses is called:
39.The component of ECG-wave form that shows beginning of atrial depolarization is
40.The component of ECG wave form; from the beginning of QRS complex to the end of T-wave is:
41.ST-segment of ECG-wave form lasts for about:
42.Ventricular abnormalities can be diagnosed when ECG shows abnormal
43.The temporary channel between embryonic pulmonary artery and aorta is:
44.Tunica media of arteries is made up of:
45.The blood vessels which carry blood away from heart are:
46.The walls of capillaries are made up of:
47.The internal diameter of a capillary is about:
48.Which of the following is not a part of interstitial fluid?
49.The middle layer of veins is relatively thinner than that of arteries because:
50.The black flow of blood in veins is prevented by the presence of:
51.The sphincters that regulate the amount of blood flowing through capillaries are:
52.When metabolic activity in a tissue rises, oxygen decreases and CO2 increases in its interstitial fluid. How does homeostatic feedback respond to this situation?
53.The velocity of blood flow in capillaries is:
54.The systemic circulation supplies oxygenated blood to all (the cells, tissues and organs) systems of the body EXCEPT:
55.Small coronary veins drain directly into:
56.The hepatic portal vein collects blood from:
Blood Pressure
57.The flow of blood creates rhythmical throbbing of arteries. Which is called:
58.The receptors which detect/monitor ups and down in blood pressure are:
59.Baroreceptors/pressure receptors are present in:
60.Long-term regulation of blood pressure is done through:
61.The hormone which stimulates kidneys to retain more water in blood, excreting less in urine is:
62.Which of the following hormones, is secreted by heart?
Cardiovascular Disorders
63.Hardening of arterial walls as a result of calcium deposition in arterial walls is termed as:
64.X-ray examination of blood vessels or chambers of heart to create x-ray pictures is called:
65.The causes of thrombosis are:
66.Thrombosis in the vessels of brain causes:
67.The death of heart muscles due to lack of oxygen and nutrients is called:
68.If life styles changes and medication fails to relieve the symptoms of heart attack, how will you proceed?
69.The procedure which involves taking a healthy blood vessel from leg, arm, chest or abdomen and attaching the ends of blood vessel above or below the blocked coronary artery is called:
70.The procedure that opens a blocked or narrowed artery is called:
71.An expandable stainless steel mesh tube, mounted on a balloon catheter, during angioplasty is called
72.A chronic elevation in blood pressure which consistently remain above 140/90 mmHg is called:
Lymphatic System of Humans
73.The branches of lymph capillaries in villi are called:
74.The ultimate flow of lymph is always from body tissues towards:
75.The veins that drain blood from arms and shoulders to the heart are called:
76.Blood filtration through its macrophages and lymphocytes, storage of RBCs belongs to:
77.Several afferent lymph vessels enter a lymph node and the lymph is drained by _____ lymph vessel/vessels.
78.Which one of the following is not larger lymphoid mass?
79.The velocity of blood is highest in: