Biology - Important One Liner Question & Answer

1. The part of the brain which is concerned with muscular co-ordination in the body - Cerebellum

2. The nerve which transmits impulses from the eye to the brain - Optic Nerve

3. The muscles in the human eye which are concerned with the following of objects at different distances - Radial and circular muscle/ ciliary muscle

4. The unit of the nervous system - Neuron

5. The neurons which carry impulses from receptor to brain - Sensory neurons

6. The neuron which transmits impulses from the brain to the effector organ - Motor neurons

7. The lower part of the brain which contains reflex centre - Spinal Cord

8. The number of spinal nerves in man- 31 pairs

9. The middle coat of the eye, soft vascular and thin layer - Choroid

10. The sensitive cells present in the retina - Rods and Cones

11. The smallest bone in the human body - Stapes

12. Most important part of the nervous system- Brain

13. The membrane covering the brain and spinal cord - Meninges

14. Response to a stimulus without the intervention of the will of an animal - Reflex Action

15. The point in the centre of the retina where the rods and cones are highly concentrated -Yellow Spot

16. One neurotransmitter - Acetyl Choline

17. Defect of the eye in which distant objects are not seen clearly - Myopia

18. Defect of the eye in which near objects are not seen clearly - Hypermetropia

19. A bony socket in which eye is well protected - Orbit

20. A small opening in the centre of the Iris - Pupil

21. The structure for the alteration of the shape of the lens - Ciliary body/ ciliary muscles

22. The structure for the constriction of the pupil in bright light - Iris

23. Inner sensitive coat of the eyeball - Retina

24. The organ of hearing - Ear

25. The structure of the ear which helps in the balancing of the body- Semi-circular canals

26. Jelly-like material filled in the space between the lens and the retina- Vitreous humour

27. The fluid-filled in the space between the cornea and the lens - Aqueous humour

28. The structure that protects the eye-ball and maintains its shape - Sclera

29. The structure that has a sensory organ called 'organ of Corti' - Cochlea

30. The defect of the eye caused due to the uneven curvature of the cornea - Astigmatism

32. The parts of the autonomous nervous system - Sympathetic and parasympathetic nervous system

33. The nerves which transmit impulses from the ear to the brain - Auditory Nerve