Fill in the blanks and choose the correct option given below.

(i) A unique vascular connection exists between the digestive tract and liver called system. The carries blood from intestine to the liver before it is delivered to the systemic circulation.

(ii) The normal activities of human heart is auto regulated by specialized nodal tissue, hence the heart is called .

(iii) Neural signal through nerves can increase the heart beat whereas signal from nerves can decrease it.

(iv) Adrenal medullary hormones can the cardiac output.

(v) The normal blood pressure is mmHg and blood pressure of or above indicates hypertension.

(vi) In measurement of blood pressure, 120mmHg is the pressure during phase of cardiac cycle and 80 mmHg during phase.

(vii) Coronary Artery Disease is often referred to as .

(viii) Atherosclerosis affects the vessels that supply blood to muscules and is caused by deposits of ion, fat, and fibrous tissues that makes the lumen narrower.

(ix) In angina, a symptom of appears when not enough oxygen is reaching heart muscle.

(x) means the state of heart when it is not pumping blood effectively enough to meet the need of body.

(xi) Heart failure is sometimes called because congestion of lungs is the one of the main symptoms of this disease.