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anatomy and physiology chapter 12 the central nervous system

1.

The primary motor cortex, Broca's area, and the premotor cortex are located in which lobe?

frontal

2.

The innermost layer of the meninges, delicate and closely apposed to the brain tissue, is the?

pia mater

3.

Cerebrospinal fluid is formed by the?

choroid plexus

4.

A patient has suffered a cerebral hemorrhage that has caused dysfunction of the precentral gyrus of his right cerebral cortex. as a result,

he cannot voluntarily move his left arm or leg

5.

Basal nuclei involved in fine control of motor activities is called

striatum

6.

The region where there is a gross crossover of fibers of descending pyramidal effects

medulla

7.

Controls temperature, autonomic nervous system reflexes, hunger and water balances

hypothalamus

8.

Houses the substantia nigra and the cerebral aqueduct

midbrain

9.

Relay stations for visual and auditory input, found in midbrain

corpora quadrigemina

10.

Houses vital centers for control of the heart, respiration, and blood pressure

medulla

11.

Brain area through which all the sensory input is relayed to get to the cerebral cortex

thalamus

12.

Brain area most concerned with equilibrium, body posture, and coordination of motor activity

cerebellum

13.

Which tracks convey vibration and other specific sensations that can be precisely localized

medial lemniscus

14.

Destruction in the ventral horn cells of the spinal cord results in loss of

voluntary muscle impulses

15.

Fiber tracts that allow neurons within the same cerebral hemisphere to communicate are

association tracts

16.

Cerebral cortex is made up of

grey matter

17.

Corpus callosum and corona radiate are made up of

white matter

18.

Red nucleus are made up of

grey matter

19.

mMedial and lateral nuclear groups are made up of

grey matter

20.

Medial leminiscal tract is made up of

white matter

21.

Cranial nerve nuclei is made up of

grey matter

22.

Spinothalamic tract is made up of

white mater

23.

Fornix is made up of

white matter

24.

Cingulate and precentral gyri are made up of

grey matter

25.

Reflex movements of the eyes are mediated by the

superior colliculi

26.

The stage where blood pressure and heart rate reach their lowest

stage 4

27.

Stage of sleep indicated by movements of eyes under lids, dreaming occurs

REM

28.

Stage of sleep when nightmares are likely to occur

stage 3 and 4

29.

Stage of sleep when the sleeper is easily awakened. EEG shows alpha waves

stage 1

30.

Describe the doral column-medial lemniscal ascednding pathway

include gracilis and fasciculus cuneatus. include a chai of three neurons. they are concerned with precise transmission of one or a few related sensory modalites