Question
Distinguish between : Atrio ventricular valves and Semilunar valves.
| Atrio ventricular valves | Semilunar valves |
| 1. Atrio ventricular valves Eire present between the atria and ventricles. On the right side there is tricuspid valve whereas on the left side there is bicuspid valve. | 1. Semilunar valves are present at the opening of pulmonary artery and systemic aorta. |
| 2. Atrio ventricular valves prevent the back flow of blood from ventricles to atria at the time of systole. | 2. Semilunar valves prevent the back flow of blood from pulmonary artery and systemic aorta back to the heart. |
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Column I | Column II |
| (1) Graafian follicle | (a) Site of implantation |
| (2) Uterus | (b) Birth canal |
| (3) Fallopian tube | (c) Site of fertilization |
| (4) Vagina | (d) Release of secondary oocyte |
| Disease | Vector species |
| (a) Dengue | (i) Anopheles |
| (b) Malaria | (ii) Housefly |
| (c) Filaria | (iii) Culex |
| (d) Typhoid | (iv) Aedes |
| Valves in heart | Location |
| (1) Bicuspid/Mitral valve | (a) Opening of inferior vena cava |
| (2) Tricuspid valve | (b) Opening of coronary sinus |
| (3) Eustachian valve | (c) Left atrioventricular aperture |
| (4) Thebesian valve | (d) Right atrioventricular aperture |
| Column I | Column II |
| (1) Acrosome | (a) Completion of IInd meiotic division of secondary oocyte |
| (2) Penetration of sperm into ovum | (b) Dissolution of zona pellucida |
| (3) Formation of fertilization membrane | (c) Secretion of Hyaluronidase |
| (4) Acrosin / Zona lysine | (d) Prevention of polyspermy |
| Human stage | Cranial capacity in CC |
| (1) Homo sapiens | (a) 650-800 |
| (2) Homo neanderthalensis | (b) 900 |
| (3) Homo habilis | (c) 1400 |
| (4) Homo erectus | (d) 1450 |