Planes and Directions in the Human Nervous System Flashcards

Terms used to describe the location of structures in human anatomy.

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1
Q

Horizontal Sections

A

Slices of the brain that are cut in a horizontal plane, that is, cut parallel to the horizon when the subject is in an upright position.

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2
Q

Sagittal section

A

Slices of the brain that are cut in a sagittal plane, that is, cut parallel to the vertical plane that divides the brain into left and right halves.

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3
Q

Midsagittal section

A

A sagittal section that is cut from the very midline of the brain.

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4
Q

Coronal sections

A

Slices of the brain that are cut in a coronal or frontal plane, that is, cut approximately parallel to the surface of the face.

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5
Q

Cross sections

A

Sections that are cut at right angles to the long axis of any long narrow structure, for example, at right angles to the long axis of the spinal cord.

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6
Q

Anterior

A

Toward the nose end; also known as rostral.

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7
Q

Posterior

A

Toward the tail end; as caudal.

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8
Q

Dorsal

A

Toward the surface of the back or front of head.

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9
Q

Ventral

A

Toward the surface of the chest and stomach or bottom of head.

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10
Q

Medial

A

Toward midsagittal plane.

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11
Q

Lateral

A

Away from the midsagittal plane; toward the left or right.

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12
Q

Superior

A

Toward the dorsal surface of the primate head.

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13
Q

Inferior

A

Toward the ventral surface of the primate head.

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14
Q

Unilateral

A

On one side of the body.

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15
Q

Bilateral

A

On both sides of the body.

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16
Q

Ipsilateral

A

From or to the same side of the body.

17
Q

Contralateral

A

From or to the opposite side of the body.