4.1 Structure Vertebrate Nervous System Flashcards Preview

175.205 Brain and Behaviour > 4.1 Structure Vertebrate Nervous System > Flashcards

Flashcards in 4.1 Structure Vertebrate Nervous System Deck (33):
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The ____ ____ ____ (CNS) is the brain and spinal cord.

central nervous system

1

The ____ ____ ____ (PNS) connects the brain and spinal cord to the rest of the body.

peripheral nervous system

2

Part of the PNS is the ____ ____ ____, which consists of axons conveying messages from the sense organs to the CNS and from the CNS to the muscles.

somatic nervous system

3

Another part of the PNS, the ____ ____ ____, controls the heart, the intestines, and other organs.

autonomic nervous system

4

____ means towards the back and ____ means toward the stomach.

Dorsal : ventral

5

There are three ways of taking a plane through the brain, known as ____, ____, and ____ (or frontal).

horizontal, sagittal, and coronal

6

Toward the back, away from the ventral (stomach) side. The top of the brain is considered ____ because it has that position in four-legged animals.

dorsal

7

Toward the stomach, away from the dorsal (back) side.

Ventral

8

Toward the front end.

Anterior

9

Toward the rear end.

Posterior

10

Above another part.

Superior

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Below another part.

Inferior

12

Toward the side, away from the midline.

Lateral

13

Toward the midline, away from the side.

Medial

14

Located close (approximate) to the point of origin or attachment.

Proximal

15

Located more distant from the point of origin or attachment.

Distal

16

On the same side of the body (e.g., two parts on the left or two on the right).

Ipsilateral

17

On the opposite side of the body (one on the left and one on the right).

Contralateral

18

A plane that shows brain structures as seen from the front (or frontal plane).

Coronal plane

19

A plane that shows brain structures as seen from the side.

Sagittal plane

20

A plane that shows brain structures as seen from above (or transverse plane).

Horizontal plane

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A row or layer of cell bodies separated from other cell bodies by a layer of axons and dendrites.

Lamina

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A set of cells perpendicular to the surface of the cortex, with similar properties.

Column

23

A set of axons within the CNS, also known as a projection. If axons extended from cell bodies in structure A to synapses onto B, we say that the fibres project from A onto B.

Tract

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A set of axons in the periphery, either from the CNS to a muscle or gland or from sensory organ to the CNS.

Nerve

25

A cluster of neuron cell bodies within the CNS.

Nucleus

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A cluster of neuron cell bodies, usually outside the CNS (as in the sympathetic nervous system).

Ganglion

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A protuberance on the surface of the brain.

Gyrus (pl. gyri)

28

A fold or groove that separates one gyrus from another.

Sulcus (pl. sulci)

29

A long, deep sulcus.

Fissure

30

The ____ is the part of the CNS within the spinal column. The ____ communicates with all the sense organs and muscles except those of the head.

spinal-cord

31

According to the ____ ____, entering dorsal roots (axon bundles) carry sensory information, and exciting ventral roots carry motor information.

Bell-Magendie law

32

The axons to and from the skin and muscles are ____ ____ ____.

peripheral nervous system

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