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3 years ago

In the spinal cord, gray matter is functionally organized into _ while white matter is organized into _.

Biology

2 answers:

Volgvan3 years ago

4 0

Answer:

The correct answer is - horns and columns.

Explanation:

The grey matter is important part of the CNS that includes the dendrites, axons, cell bodies, glial cells and capillaries and synapses. It is the greatest in the spinal cord segments.

The gray matter makes the functional organization into 3 pairs of the horns in whole spinal cord, dorsal, lateral, and ventral horns, white matters are organized into columns.

Thus, the correct answer - horns and columns.

NemiM [27]3 years ago

3 0

Answer:

Horns and columns.

Explanation:

The spinal cord is the important component of the central nervous system. The spinal cord consists of the nerves of the body and control the reflex actions of the body.

Spinal cord consist of white matter and grey matter. The motor and sensory axons are present on white matter. The white matter covers the grey matter and arranged into the different columns. The grey lies inside the white matter and consists of neuronal cell bodies. The grey matter is completely organised in the horns.

Thus, the answer is horns and columns.

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2 years ago

In discriminating between a viable and non-viable early intrauterine pregnancy, which one of the following criteria can be used

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- Mean sac diameter criterion: This is the absence of embryo by the time the gestational sac has grown to a certain size. The gestational sac increases as the pregnancy progress. It has been suggested by the latest studies to use a mean sac diameter of 25 mm or more, and no visible embryo to diagnose failed pregnancy. A mean sac diameter of 16 to 24 mm and no embryo is suspicious for failed pregnancy, but shouldn’t be used to diagnose it.

- Time-based criteria: This is the absence of an embryo by a certain point in time. If an initial sonogram shows that there is a gestational sac and a yolk sac, but about 11 days later there isn’t any embryo with cardiac activity, then a failed pregnancy can be established. The timing event in early pregnancy is precise and reproducible to perform a correct diagnosis.

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- Yolk sac: An enlarged yolk sac sized over 7 mm is suspicious for a failed pregnancy.

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3 years ago

In the spinal cord, gray matter is functionally organized into _________ while white matter is organized into _________.

In the spinal cord, gray matter is functionally organized into _ while white matter is organized into _.