Formatting page ...
UNIVERSAL EDUCATION ICSE GRADE X SUBJECT : BIOLOGY ___________________________________________________________________________ Chapter 9 - Nervous system Q1. Name the following 1. The part of the brain which is considered with muscular coordination in the body Cerebellum 2. The structure for the alteration of the shape of the lens Ciliary body 3. The structure for the constriction of the pupil in the bright light Iris 4. The nerve which transmits impulse from the eye to the brain Optic nerve 5. The unit of nervous system Neuron 6. The neuron which transmits impulse from the brain to the effector organ Motor neuron 7. The lower part of the brain that contains reflex centre Spinal cord 8. The middle coat of the eye Choroid 9. The smallest bone in the body Stapes 10. Response to a stimulus without the intervention of the will of an animal Reflex action 11. One neurotransmitter Acetylcholine 12. A bony socket in which the eye is well protected Orbit 13. A small opening in the centre of the iris Pupil 14. The organ of hearing Ear 15. The structure that has a sensory organ called organ of corti Cochlea 16. The defect of the eye caused due to uneven curvature of the cornea Astigmatism 17. The nature of image formed on the retina
|
