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hjlf
3 years ago
11

Suppose you were observing an organism through the microscope and noticed that it moved toward the bottom of the slide and then

it moved to te right. What does this tell you about the actual movement?

Biology
1 answer:
NikAS [45]3 years ago
6 0

The optical microscope uses a set of lenses to enlarge the image to provide a true, inverted image larger than the object. If we place the letter F on an observation slide, it will be inverted horizontally and vertically as shown in the attached figure.

Therefore, if through the microscope the organism moved down and to the right, actually on the slide, moved up and to the left.

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Answer: Interventricular foramen

Explanation:

<u>The cerebrospinal fluid is a fluid that covers the brain and spinal cord. It circulates through the subarachnoid space, the cerebral ventricles and the ependymal canal</u>. Several diseases alter its composition and its study usually detects meningeal infections, carcinomatosis and hemorrhages. Some of its functions are:

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This fluid also fills the ventricles, which are large open structures deep within the brain and help keep the brain buoyant and cushioned. The lateral ventricles are the largest ventricles and connect to the third ventricle through the intraventricular foramen. This third ventricle is a narrow, medial cavity located between the diencephalic masses. <u>Then, the interventricular foramina are channels that connect with the ventricles of the lateral walls and with the third ventricle</u>, at the level of the midline of the brain. Like these channels, they allow cerebrospinal fluid to circulate through the rest of the ventricular system of the brain. The walls of the foramina also contain choroid plexuses, responsible for the production of cerebrospinal fluid, which continue in both the lateral ventricles and the third ventricle. After reaching the third ventricle, the cerebrospinal fluid travels through the median aperture into the subarachnoid space at the base of the brain.

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