Ch 14: Brain & Cranial Nerves

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1

The ____________________ relays sensory information to the thalamus and other portions of the brain stem.

medulla oblongata

2

The _________________ processes auditory and visual data and maintains consciousness.

mesencephalon

3

The _______________ coordinates complex somatic motor patterns.

cerebellum

4

The __________________ is the center of conscious thought processes and intellectual functions

cerebrum

5

The abducens nerve (VI) function is ____________________.

motor (eye movements)

6

Olfactory nerve (I) function is ____________________.

special sensory: smell

7

Vagus nerve (X) function is ____________________.

mixed sensory and motor distribution in thorax and abdomen

8

Vestibulocochlear nerve (VIII) function is ____________________.

special sensory: balance and equilibrium

9

The lateral ventricles are located ____________________.

cerebral hemispheres

10

The central canal is located _____________________.

spinal cord

11

The fourth ventricle is located _________________.

brain stem

12

The third ventricle is located ____________________.

diencephalon

13

Prosencephalon is also known as _________________

“forebrain”

14

Mesencephalon also known as _______________.

“midbrain”

15

Rhombencephalon also known as _________________.

“hindbrain”

16

Telencephalon forms the __________________.

cerebrum

17

Metencephalon forms the _______________________.

cerebellum and pons

18

Myelencephalon forms the _______________________.

medulla oblongata

19

_______________ projects between cerebral hemispheres and contains superior sagittal sinus and inferior sagittal sinus.

Falx cerebri

20

_________________ separates cerebrum from cerebellum and contains transverse sinus

Tentorium cerebelli

21

_________________ divides cerebellar hemispheres below the tentorium cerebelli.

Falx cerebelli

22

The _______________ produces CSF in the brain, has specialized ependymal cells surround capillaries.
Secretes about 500 mL of CSF into ventricles per day
Removes waste products from CSF
Adjusts composition of CSF

choroid plexus

23

The _______ contains the pneumotaxic and apneustic centers.

pons

24

Excess cerebrospinal fluid is returned to the venous circulation by __________.

diffusion across the arachnoid villi

25

The corpora quadrigemina of the mesencephalon are responsible for processing __________.

visual and auditory sensations

26

Pyramidal cells are cortical neurons that __________.

direct voluntary movements

27

The paraventricular nucleus of the hypothalamus __________.

secretes oxytocin

28

__________________ processes auditory and visual data and maintains consciousness.

Mesencephalon

29

The ______________ provide subconscious control of skeletal muscle tone and coordination of other learned movement patterns.

basal nuclei

30

The respiratory rhythmicity center is found in _________________.

the medulla oblongata.

31

The tympanic reflex ________________.

protects the inner ear from loud noises.

32

Damage to the pyramidal cells of the cerebral cortex would directly affect

voluntary motor activity.

33

Damage to the premotor cortex of the frontal lobe would interfere with the ability to

use scissors to cut out a picture.

34

A tumor that blocks the interventricular foramen in the left cerebral hemisphere would

result in hydrocephalus.

35

After suffering a blow to the back of the head, Phil becomes comatose. The blow probably caused damage to the

reticular formation.

36

Increased production and release of acetylcholine by the neurons of the cerebral nuclei would result in

spastic, uncontrolled muscle contractions