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BIO SSC

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anandsingh's version from 2018-05-16 10:38

Section

Question Answer
The part of the brain which is concerned with muscular coordination in the body -Cerebellum
The structure for the alteration of the shape of the lens - Ciliary body/ ciliary muscles
The structure for the constriction of the pupil in bright light - Iris
The nerve which transmits impulses from the eye to the brain - Optic Nerve
The muscles in the human eye which are concerned with the following of objects at different distances - Radial and circular muscle/ ciliary muscle
The unit of nervous system - Neuron
The neurons which carry impulses from receptor to brain - Sensory neurons
The neuron which transmits impulses from brain to the effector organ - Motor neurons
The lower part of brain which contains re􀂢ex centre - Spinal Cord
The number of spinal nerves in man- 31 pairs
The middle coat of the eye, soft vascular and thin layer - Choroid
The sensitive cells present in the retina - Rods and Cones
The smallest bone in the human body - Stapes
Most important part of nervous system- Brain
The membrane covering the brain and spinal cord - Meninges
Response to a stimulus without the intervention of the will of an animal- Reflex Action
The point in the centre of the retina where the rods and cones are highly concentrated -Yellow Spot
One neuro-transmitter - Acetyl Choline
Defect of the eye in which distant objects are not seen clearly - Myopia
Defect of the eye in which near objects are not seen clearly - Hypermetropia
A bony socket in which eye is well protected - Orbit
A small opening in the centre of the Iris - Pupil
Inner sensitive coat of the eye ball - Retina
The organ of hearing - Ear
The structure of the ear which helps in the balancing of the body- Semicircular canals
Jelly-like material 􀂡lled in the space between the lens and the retina- Vitreous humour
The 􀂢uid 􀂡lled in the space between the cornea and the lens - Aqueous Humour
The structure that protects the eye-ball and maintains its shape - Sclera
The structure that has a sensory organ called 'organ of corti' - Cochlea
The defect of the eye caused due to the uneven curvature of the cornea- Astigmatism
The parts of autonomous nervous system - Sympathetic and parasympathetic nervous system
The nerves which transmit impulses from ear to the brain - Auditory Nerve
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