Match The Columns- Match Column I with Column II.
Column I Column II
A. Rheumatic heart disease (i) Closure of bicuspid and
tricuspid valves
B. Spleen (ii) Thebasian valve
C. Lubb (iii) Streptococcus bacteria
D. Opening of coronary (iv) Decreased flow of
sinus blood to brain
E. Strokes-Adams syndrome (v) Haemopoiesis - Match Column I with Column II. (There can be more than
one match for items in Column I).
Column I Column II
A. Erythropoiesis (i) Vitamin B 12
B. RBC maturation (ii) Foramen ovale
C. Anticoagulant (iii) Chordae tendineae
D. Atria (iv) Yolk sac
E. Ventricles (v) Folic acid
(vi) Oxalate
(vii) Coronary valve
(viii) Bone marrow
(ix) EDTA
(x) Papillary muscles
Passage Based Question- Complete the given passage with appropriate words or
phrases.
Heart beat is the rhythmic contraction and relaxation of
the heart. Rate of heart beat is under neural and hormonal
regulation. The cardiac centre lies in (i) of the brain. The
cardio-inhibitor is connected with the heart through (ii) and
cardio-accelerator through (iii). (iv) hormone accelerates
heart beat under normal conditions, while hormone (v) does
same function during emergency. These hormones directly
influence (vi). (vii) hormone secreted by thyroid gland
increases oxidative metabolism of body cells.
Assertion & Reason
In each of the following questions, a statement of Assertion (A)
is given and a corresponding statement of Reason (R) is given
just below it. Of the statements, mark the correct answer as :
(a) if both A and R are true and R is the correct explanation of A
(b) if both A and R are true but R is not the correct explanation
of A
(c) if A is true but R is false
(d) if both A and R are false.
- Assertion : Deficiency of vitamin K causes blood loss
during an injury.
Reason : Vitamin K is essential for synthesis of
prothrombin.- Assertion : An individual experiences erythrocytopenia
at high altitudes.
Reason : At high altitude erythrocytopenia helps to meet
increased oxygen demand. - Assertion : Blood in arteries flow under high pressure.
Reason : Arteries pump blood to different body parts. - Assertion : In arteriosclerosis, clot formation in coronary
artery may lead to heart attack.
Reason : Cholesterol deposition and calcification cause
hardening of arteries. - Assertion : Marriage between Rh– woman and Rh+ man
results in incompatability during pregnancy.
Reason : Rh– blood of mother stimulates formation of
Rh antibodies in foetal blood.
Figure Based Questions - Refer to the given graphical representation of the electric
current produced by the excitation of the cardiac muscles
in normal condition and answer the following questions.
(a) What do wave P, QRS and T represent?
(b) Which wave marks the end of systole?
(c) What is the significance of QRS complex?- Study the given flow chart of double circulation and answer
the following questions.
(a) Identify the A, B C and D chambers of human heart.
(b) Name the vessels which carry deoxygenated blood to
chamber A.
(c) What do X and Y represent?
(d) To which chamber of the heart do the pulmonary
veins carry oxygenated blood from lungs?