chapter 13 pt 2

Question 1

spaces in brain are called

Answer 1

ventricles

Question 2

ventricles are

Answer 2

cavities within the brain

Question 3

ventricles are lined with

Answer 3

ependymal cells

Question 4

ventricles contain

Answer 4

cerebrospinal fluid

Question 5

ventricles connect with each other and with spinal cords ____

Answer 5

central canal

Question 6

ependymal regular compoisiton of

Answer 6

Cerebrospinal fluid

Question 7

how many ventricles are within the brain

Answer 7

4 main ventricles in brain

Question 8

how many lateral ventricles are there

Answer 8

2 lateral ventricles

Question 9

the 2 lateral ventricles are seperated by medial partition called

Answer 9

seprum pellucidum

Question 10

the 2 lateral centricles are large cavities in the

Answer 10

cerebrum

Question 11

the third ventricle is a narrow space in the middle of the

Answer 11

diencephalon

Question 12

the third ventricle is connected to lateral ventricles by the

Answer 12

interventricular foramen

Question 13

the fourth centricle is _______ shaped

Answer 13

sickle

Question 14

4th ventricle is located between

Answer 14

pons and cerebrum

Question 15

the fourth ventricle is connected to the third ventricle by the

Answer 15

cerebral aqueduct

Question 16

fourth ventricle open to subarachnoid space ____ and ___

Answer 16

medially and laterally

Question 17

the fourth ventricle narrows before merging with the

Answer 17

central canal of spinal cord

Question 18

CSF flows through brain structure through ventricles to be a

Answer 18

nutrutive substance forbrain tissue

Question 19

CSF is clear and

Answer 19

colorless

Question 20

CSF circulates in _____ and _______

Answer 20

ventricles and subarachnoid space

Question 21

functions of CSF

Answer 21

buoyancy, protection, and envionmental stability

Question 22

CSF allows for buoyancy by

Answer 22

reducing brain weight by 95%

Question 23

CSF allows for protection by

Answer 23

providing a liquid cushion

Question 24

CSF allows for envionmental stability by

Answer 24

transporting nutrients/wast and protecting against fluctuations

Question 25

CSF produced by

Answer 25

choroid plexus

Question 26

choroid plexus is in each

Answer 26

ventricle

Question 27

ependymal cells and blood capillaries regulate

Answer 27

CSF from choroid plexus

Question 28

Blood plasma is filtered through ______ and modified by ______

Answer 28

capillary ependymal cells

Question 29

Compared to plasma, CSF has more____ and _____; less ____, ____, ____

Answer 29

sodium and chlorin; potassium, carbon, glucose

Question 30

ependymal cell secretions and interstitial fluid from subarachnoid space help make up

Answer 30

cerebrospinal fluid

Question 31

CSF is continually _____ and _____

Answer 31

formed and reobsorbed

Question 32

Excess CSF flows into _______ and drains into ____

Answer 32

rachnoid villi ; dural venous sinuses

Question 33

An ______ is a collection of these villi

Answer 33

arachnoid granulation

Question 34

functions of blood brain barrier

Answer 34

Regulates which substances enter brain’s interstitial fluid Helps prevent neuron exposure to harmful substances such as drugs BBB composed of specialized capillaries * Endothelial cells are connected by many tight junctions * Walls have a thick basement membrane * Wrapped by perivascular feet of astrocytes BBB reduced in certain locations for functional reasons * Choroid plexus needs to produce CSF * Hypothalamus and pineal gland need to secrete hormones 23

Question 35

what are some drugs that can pass blood brain barrier

Answer 35

alcohol

Question 36

BBB composed of specialized

Answer 36

capillaries

Question 37

Endothelial cells of BBB are connected by many

Answer 37

tight junctions

Question 38

Walls of BBB cappilaries have a _____ membrane BBB reduced in certain locations for functional reasons

Answer 38

thick basement

Question 39

capilarries of BBB are wrapped by

Answer 39

perivascular feet of astrocytes

Question 40

BBB reduced in certain locations for functional reasons like

Answer 40

Choroid plexus needs to produce CSF * Hypothalamus and pineal gland need to secrete hormones

Question 41

BBB astrocytes connect neurons to blood supply by

Answer 41

using perivascular feet to attach to capillaries to make junctions

Question 42

cerebrum is the origin of

Answer 42

all complex intellectual functions

Question 43

cerebrum has how many hemispheres

Answer 43

2

Question 44

cerebrum is the center of

Answer 44

intelligence and reasoning though, memory and judgement voluntary control of skeletal muscle conscious perception of senses

Question 45

left and right hemisheres of cerebrum are called

Answer 45

cerebral hemispheres

Question 46

in between cerbral hemispheres is the

Answer 46

longitudinal fissure

Question 47

at a few locations white matter______ connect the hemispheres

Answer 47

tracts

Question 48

the largest tract that provides connection between hemispheres is called

Answer 48

corpus callosum

Question 49

Each hemisphere interacts with ____ side of body

Answer 49

opposite

Question 50

what hemisphere is speech normally located

Answer 50

left

Question 51

Some higher-order functions exhibit

Answer 51

cerebral lateralization

Question 52

cerebral lateralization

Answer 52

primarily controlled by one side of the brain