Answer and Explanation:
The retina covers the internal phase of the eye. It characterizes by its complex interaction between many morphologically and functionally different cells, which are located in many layers. The principal processing mechanism in the retina is lateral interactions among cells, and the most common lateral processing is lateral inhibition.
Photoreceptors are those cells that receive the light and translate the luminous signal into an electrical signal. These are the cones and sticks.
The horizontal cells intervene in the lateral spatial interaction between photoreceptors.
Bipolar cells receive information from the photoreceptors and from the horizontal cells and transmit it to the most internal layers in the retina.
The retina is stratified into five layers. One of these is the external plexiform layer, a contact zone between photoreceptors, horizontal cells, bipolar cells, and other cells.
In the vertebrates´ retina, the lateral inhibition is produced for the first time in the external plexiform layer, through the horizontal cells. These cells connect to photoreceptors, other horizontal cells, and bipolar cells. The connection between horizontal cells might reduce or amplify the photoreceptor answer, and this last one is transmitted by the bipolar cells to the interior of the retina. In photoreceptors, there are two connections to horizontal cells, a direct connection, and an indirect one. The connection between photoreceptors, horizontal cells, and bipolar cells is known as lateral inhibition. By this inhibition, photoreceptors allow the contrasting perception in an image. Lateral inhibition allows discriminating one stimulus from other stimuli, by enhancing contrast and definition. The inhibitory modulation is produced by the inhibitor neurotransmitter GABA.The spacial extension of lateral inhibition changes according to the adaptation to light. Gap junction between horizontal cells and between photoreceptors and horizontal cells might vary with the amount of light.
Answer: The real answer is actually WATER CYCLE.
Explanation:it can be tides
Answer:
Dorsal Cavity include the cranial cavity and spinal cord, meninges and cerebral canal also called the spine.
Ventral Cavity include lungs,,abdominalcavity,mediastinum,diaphragm.
Explanation:
The dorsal body cavity is located at the dorsal side of human body. It consist of spinal cord , cranial cavity and they are lined by meninges. The meninges serves as the covering and protective membrane for the dorsal cavities.
The ventral body cavity is found in the anterior part of the human body. It consist of thorasic cavity and abdominopelvic cavity. The abdominopelvic cavity consist of abdominal cavity which comprises of digestive organs and pelvic cavity which include the urinary bladder, reproductive organs. The thorasic cavity include the chest, lungs ,heartand mediastinum which divide the thorasic cavity
Answer:
a. the maintenance of political, social, economic, and cultural dominance over a people by a foreign power for an extended period
Colonialism is defined as <u>the maintenance of political, social, economic, and cultural dominance over a people by a foreign power for an extended period</u>
Explanation:
Colonialism is the military, economic,cultural oppression and domination of one country over another for an extended period. Often times colonialism was resisted through language,history and identity construction. During colonialism, people often used one of the following strategies to cope:
- Separatism
- Re-creation
- Syncrestism
- Mimicry
- Active participation
- Assimilation
