The re-establishment of the resting membrane potential after depolarization is primarily due to:
1. Sodium potassium pump | 2. Influx of sodium |
3. Efflux of potassium | 4. Efflux of sodium |
In the human eye, there are three types of cones – red blue and green. When these cones are stimulated equally, a sensation for which of the following colors would be produced?
1. White | 2. Black |
3. Orange | 4. Yellow |
Which of the following parts of the human brain functions as a gateway to the cerebrum and is a major coordinating center for sensory and motor signaling?
1. Thalamus | 2. Hypothalamus |
3. Corpora quadrigemina | 4. Pons |
A canal called the cerebral aqueduct passes through the:
1. Cerebral hemispheres | 2. Diencephalon |
3. Mid brain | 4. Hind brain |
From outside to inside, the correct sequence of cells in the inner layer of human retina will be:
1. Photoreceptor cells, Bipolar cells, Ganglion cells
2. Ganglion cells, Bipolar cells, Photoreceptor cells
3. Photoreceptor cells, Ganglion cells, Bipolar cells
4. Ganglion cells, Photoreceptor cells, Bipolar cells
Gustatory receptors are meant for:
1. Taste | 2. Smell |
3. Vibration | 4. Temperature |
In the ear, the utricle and the saccule are located in the:
1. cochlea | 2. semicircular canal |
3. spiral organ (organ of Corti) | 4. vestibule |
Fovea centralis is a part of:
1. Sclera | 2. Cornea |
3. Retina | 4. Choroid |
When the ciliary muscles in the human eye contract:
1. the lens becomes more convex, generally improving the focus for closer objects
2. the lens becomes more convex, generally improving the focus for farther objects
3. the lens becomes more flat, generally improving the focus for closer objects
4. the lens becomes more flat, generally improving the focus for farther objects
The afferent neuron receives signal from a sensory organ and transmits the impulse to the CNS via:
1. Dorsal root of the spinal nerve
2. Ventral root of the spinal nerve
3. Cranial nerve
4. Intermediolateral horn of spinal cord grey mater