When a Cerebrospinal Fluid Specimen Is Needed for Testing, the Specimen

question 58

Multiple Choice

When a cerebrospinal fluid specimen is needed for testing, the specimen is removed by needle from the L3-L4 interspace area of the vertebral column. Why?

• A) There are no spaces between the other areas of the vertebral column.
• B) There is a higher pressure within the subarachnoid space at that point, so it is easier to obtain a specimen.
• C) There are no spinal nerves located in that area.
• D) There would be no possible damage to the spinal cord itself when the needle is inserted into the space.
• E) The space where the needle is inserted is larger than anywhere else along the vertebral column.

Describe the historical and contemporary misconceptions about race.

Recognize the role of genetics in human diversity and commonality.

Comprehend the impact of environmental factors on human biological diversity.

Analyze the relationship between race, intelligence, and genetics.

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Definitions:

Hemispheres

The two halves of the brain, the left and the right hemisphere, each responsible for different functions and processes.

Feature Detector

Neurons in the brain that identify specific features of a stimulus, such as shape, angle, or movement, which contribute to the perception of objects.

Visual Cortex

The part of the cerebral cortex responsible for processing visual information, located in the occipital lobe of the brain.

Ganglion Cell

A type of neuron located near the inner surface of the retina of the eye, which receives visual information from photoreceptors via intermediate bipolar cells and transmits it to the brain.