Oxygenated blood to liver is supplied by: (a) Hepatic artery (b) Hepatic vein (c) Inferior vena cava (d) Hepatic portal vein

The life span of an RBC is: (a) 120 days (b) 220 days (c) 20 days (d) 2 weeks

Mention any two functions of blood.

State the exact location of the following structures: (a) Thyroid gland (b) Dura mater (c) Amniotic fluid (d) Papillary muscles (e) Islets of Langerhans

Define the term-Diapedesis.

Name the mineral elements required for: (a) Clotting of blood (b) Synthesis of thyroxine

Mention two structural differences between an artery and a vein.

Name the white blood cells that: (a) Show phagocytosis (b) Produce antibodies

Give the exact location of: (a) Pericardium (b) Bicuspid valve

The diagram below depicts the human heart in one of its phases. Answer the questions that follow: (a) Which part of the heart is in the contraction phase? (b) Give a suitable reason to justify your answer in (a). (c) Distinguish between Systole and Diastole.

Assertion (A): Leukoderma is the biological term for blood cancer. Reason (R): An abnormal increase in the number of WBCs causes blood cancer. (a) (A) is true and (R) is false. (b) (A) is false and (R) is true. (c) Both (A) and (R) are true and (R) is the correct explanation of (A). (d) Both (A) and (R) are true and (R) is not the correct explanation of (A).

The immediate steps to be taken when a person suffers a heart attack are: P. Loosen the clothes Q. Make the person lie down in an airy place R. Take the person to the hospital S. Encourage conversation (a) P and Q (b) P and S (c) R and S (d) P, Q and R