Q.12:- Distinguish between a) Afferent neurons and Efferent neurons b) Impulse conduction in a myelinated nerve fibre and an unmyelinated nerve fibre c) Aqueous humour and Vitreous humour d) Blind spot…

Q.9:- Differentiate between: (a) Myelinated and non-myelinated axons (b) Dendrites and axons (c) Rods and cones (d) Thalamus and Hypothalamus (e) Cerebrum and Cerebellum   Answer (a) Myelinated and non-myelinated axons…

Q.8:- Explain the following: (a) Role of Na+ in the generation of action potential. (b) Mechanism of generation of light-induced impulse in the retina. (c) Mechanism through which a sound produces…

Q.7- Answer briefly: (a) How do you perceive the colour of an object? (b) Which part of our body helps us in maintaining the body balance? (c) How does the eye…

Q.6:- Give a brief account of: (a) Mechanism of synaptic transmission (b) Mechanism of vision (c) Mechanism of hearing   Answer (a)Mechanism of synaptic transmission A nerve impulse is transmitted from…

Q.5:- Write short notes on the following: (a) Neural coordination (b) Forebrain (c) Midbrain (d) Hindbrain (e) Retina (f) Ear ossicles (g) Cochlea (h) Organ of Corti (i) Synapse Answer (a)…

Q.3:- Explain the following processes: (a) Polarisation of the membrane of a nerve fibre (b) Depolarisation of the membrane of a nerve fibre (c) Conduction of a nerve impulse along a…

Q.2:- Compare the following: (a) Central nervous system (CNS) and Peripheral nervous system (PNS) (b) Resting potential and action potential (c) Choroid and retina     Answer:-  (a) Central Nervous System…

Q.1:- Briefly describe the structure of the following: (a) Brain (b) Eye (c) Ear     Answer:-  (a) Structure of Brain The human brain is well protected by the skull. Inside…