Mention two structural differences between an artery and a vein.

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

Define the term hormone.

Which of the following hormones will have an immediate effect on the rate of urination? (a) Adrenaline (b) Vasopressin (c) Oestrogen (d) Thyroxine

Distinguish between Diabetes mellitus and Diabetes insipidus (endocrine gland concerned).

Define the term-Diapedesis.

Mention any two functions of blood.

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

Why are RBCs efficient in their functions though they lack nucleus and mitochondria?

Carbon monoxide is dangerous when inhaled in excess. Comment on the statement.

Match the items given in Column I with the most appropriate ones in Column II and rewrite the correct matching pairs: Column I Column II Hyposecretion of Thyroxine in adults Diabetes insipidus Hyposecretion of Insulin Myxoedema Hypersecretion of Growth hormone in childhood Dwarfism Hyposecretion of ADH Gigantism Hypersecretion of Thyroxine Diabetes mellitus Exophthalmic goitre Cretinism

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