Centres

... b) remains in the synapse longer than normal c) increases the speed of nerve impulse transmission d) diffuses rapidly throughout the pleasure centres of the brain 2. A hot foot results when a match is inserted in the side of a shoe and it lit. Very soon, the one recieving the hot foot 1. jerks ...

See entire post

... animal cells too centrosomes are not required for spindle formation during cell division. -What do they specifically do as microtubule organizing centres? Also in a human ovum (secondary oocyte) a pair of centrioles is absent. This does not seem to confer a selective disadvantage to the ovum.

See entire post

... of other immune components like B-cells. - B-cells can differentiate into plasma cells (produce antibodies), memory cells (form germinal centres in the secondary lymphoid follicles) or B1 cells (similar role to plasma cells). Each has a single unique surface receptor. - CD4 and CD8 are ...

See entire post

This is controlled by the nervous system, in the ‘Satiety’ and ‘feeding’ centres of the lateral hypothalamus . The actions of these t wo nerve centers have opposite effects. If the feeding center is stimulated, we feel the sensation of hunger, and we will eat. ...

See entire post

This is controlled by the nervous system, in the ‘Satiety’ and ‘feeding’ centres of the lateral hypothalamus . The actions of these t wo nerve centers have opposite effects. If the feeding center is stimulated, we feel the sensation of hunger, and we will eat. ...

See entire post