The ……. receive signals from …….and transmit it via …….nerve root
(1) Afferent neurons, sensory organs, dorsal
(2) Afferent neurons, effector organs, ventral
(3) Efferent neurons, sensory organs, ventral
(4) Efferent neurons, effector organs, dorsal
Which of the following is a reflex action?
(1) Sudden withdrawal of body part, when it comes in contact of hot body
(2) Knee jerk reflex
(3) Controlling sleep pattern
(4) More than one options are correct.
Which of the following is wrong about eyes?
1. An adult human eye ball is nearly a spherical structure
2. Our paired eyes are located in sockets of the skull called orbits
3. The wall of the eye ball is composed of three layers
4. The external layer is composed of loose connective tissue and is called sclera
Cornea is
(1) Anterior portion of choroid
(2) Anterior portion of sclera
(3) Posterior portion of sclera
(4) Anterior portion of retina
Which of the following is not associated with Iris?
(1) Ciliary bodies form it
(2) Pigmented and transparent
(3) Visible colored part of the eye
(4) Present in anterior part of eye
Eye-Lens is not
(1) Transparent
(2) Crystalline
(3) Held in place by tendons attached to the ciliary body
(4) Both A and C
Pupil of human eye has not which of the following properties?
(1) In front of the lens
(2) The aperture surrounded by the Iris
(3) Diameter of the pupil is regulated by collagen fibres of Iris
(4) All of these
Which of the following is wrong with respect to Retina?
(1) Innermost layer of eye
(2) Three layers of neural cells
(3) Ganglion is outermost cell
(4) Rods and Cones are the photoreceptors over there
Which of the following lights is not responded by photo pigments which are present in human eye?
(1) Red
(2) Green
(3) Blue
(4) Yellow
Sensation of white light is produced when
(1) When rodes are stimulated more than cones
(2) When cones are equally stimulated
(3) When rodes are equally stimulated
(4) When cones are stimulated more than rodes