Neural Control And Coordination

The dendrites are usually shorter and tapering processes which generally start branching from near their base, becoming bushy or dendritic. The dendrites contain neurofibril and Nissls granules. They conduct nerve impulse toward the cell body (cyton).

The iris of eye can be compared with the diaphragm of a camera as it regulates the amount of light entering in eye by constricting or dilating the pupil.

Cochlea is a spirally coiled tube (2-3 coiling) like structure, present in internal ear. It is the main hearing organ.

The motor speech area (also called Brocas motor speech area) lies in the frontal lobe of brain. In the frontal lobe creative ideas occur.

Neurotransmitters are the chemicals secreted by axon terminals for transmitting impulse to the next neuron. Acetylcholine, glutamic acid, glycine, GABA, epinephrine all are neurotransmitters. Tyrosine is not a neurotransmitter. it is an amino acid.

Also called vomeronasal organ. It is an olfactory sense organ. Commonly found in reptiles.

Rexed, based on the cyto architectural pattern as well as on the density of neuronal packing, identified several groups of arrangement which are 10 in number and now called Rexed laminae.

Cones are related with coloured vision.

The amount of CSF in the cranial cavity is 140 ml.

The connecting passage between III ventricle (diocoel), IV ventricle and optocoels (cavities of optic lobes) is called aqueduct of sylvius. Foramen of Monro connects lateral ventricles with III ventricle or diocoel.