The reflex pathway consists of retinal ganglion cells, which convey information from the photoreceptors to the optic nerve which connects to the pretectal nucleus of the high midbrain. It bypasses the lateralgeniculate nucleus and the primary visual cortex.
The River Nile is about 6,670 km (4,160 miles) in length and is the longest river in Africa and in the world. Although it is generally associated with Egypt, only 22% of the Nileâs course runs through Egypt.
Interesting Facts about the Nile river: 1  The Nile River is the longest river in the world. 2  The Nile flows into the Mediterranean Sea. 3  The Nile has a length of about 6,695 kilometers (4,160 miles). 4  Its average discharge is 3.1 million litres (680,000 gallons) per second. The Nile flows into the Mediterranean Sea. 2  The Nile has a length of about 6,695 kilometers (4,160 miles). 3  Its average discharge is 3.1 million litres (680,000 gallons) per second. 4  The Nile basin is huge and includes parts of Tanzania, Burundi, Rwanda, Congo (Kinshasa), Kenya.