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Flashcards in Nerves Deck (26)
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1

Contains unmyelinated axons

Gray matter

2

Contains myelinated axons

White matter

3

How many pairs of nerves are there?

31 pairs of nerves

4

What are the 4 major plexuses?

-Cervical plexus
-Brachial plexus
-Lumbar plexus
-Sacral plexus

5

Largest region of the brain where conscious thought and all intellectual functions originate.

Cerebrum

6

Elevated ridges which increase the surface area of the cerebral cortex.

Gyri

7

Shallow depressions in the brain.

Sulci

8

Deeper grooves in the brain.

Fissures

9

In the cerebrum is found in the cerebral cortex and in the basal nuclei

Gray matter

10

Lies under the cerebral cortex and surrounds the basal nuclei

White matter

11

Left or right side are called______

Hemispheres

12

Divides the left and right hemishperes

Longitudinal fissure

13

Primary cortex that voluntarily controls skeletal muscles, cognition, reasoning, and logic.

Frontal lobe

14

Primary sensory cortex that controls the conscious perception of touch, pressure, vibration, pain, temperature, and taste.

Parietal lobe

15

Visual cortex that controls the conscious perception of visual stimulus

Occipital lobe

16

Auditory cortex and olfactory cortex that control the conscious perception of auditory and olfactory stimuli.

Temporal lobe

17

Endocrine gland that releases nine hormones.

Pituitary gland

18

Stalk that connects the pituitary gland to the hypothalamus

Infundibulum

19

Prominent areas that process sensory information including olfactory sensations and control reflex movements associated with eating (chewing, licking, and sucking)

Mammillary bodies

20

Area where the optic nerves cross before entering the brain.

Optic Chiasm

21

Prominent structures associated with the hypothalamus are: 4

-Pituitary gland
-Infundibulum
-Mammillary bodies
-Optic Chiasm

22

Second largest portion of the brain

Cerebellum

23

Regulates posture and balance

Cerebellum

24

Compares the intended and actual movements to refine learned movement patterns

Cerebellum

25

Includes the medulla oblongata, pons, and midbrain (mesenchephalon)

Brainstem

26

Which cranial nerves control movement of the eye?

-Oculomotor (3)
-Trochlear (4)
-Abducens (6)