Quiz 4/5 Review

Question 1

The lateral longitudinal groove in the inner surface of the developing spinal cord is the:

Answer 1

sulcus limitans

Question 2

Anteriorly, the 3rd ventricle ends at the?

Answer 2

lamina terminalis

Question 3

CSF descends down the __________ side of the spinal cord

Answer 3

posterior

Question 4

Put these structures in order from first to last as used to represent CSF production and flow
-choroid plexus
-lateral ventricle
-3rd ventricle
-4th ventricle
-cerebral aqueduct (sylvius)
-interventricular foramen (monro)
-dural sinus
-subarachnoid space

Answer 4

-choroid plexus
-lateral ventricle
-interventricular foramen (monro)
-3rd ventricle
-cerebral aquaduct (sylvius)
-4th ventricle
-subarachnoid space
-dural sinus

Question 5

The retina of the eye forms from a diverticulum projecting from the _________________?

Answer 5

diencephalon

Question 6

Paired passageways associated with the 4th ventricle:

Answer 6

lateral aperture/foramen of luschka

Question 7

Cisterns are ___________________

Answer 7

subarachnoid spaces

Question 8

Of the following, the item most closely associated with the pons is:
A) mesencephalon
B) myelencephalon
C) metencephalon
D) diencephalon

Answer 8

C) metencephalon

Question 9

T/F: neurulation occurs before gastrulation

Answer 9

false

Question 10

The dural fold that separates the occipital lobe and cerebellum?

Answer 10

tentorium cerebelli

Question 11

A healthy typical human brain has _______ mL of CSF circulating at any given time

Answer 11

150

Question 12

T/F: the obex is the rostral limit of the 4th ventricle

Answer 12

false

Question 13

The wall of the neural tube thickens in which area to produce the basal nuclei?

Answer 13

telencephalon

Question 14

The area outlined on the image is?

Answer 14

lateral aperture/recess

Question 15

The area outlined on the image is?

Answer 15

suprapineal recess

Question 16

CSF can move into dural sinuses via which process?

Answer 16

through arachnoid villi

Question 17

The region of the lateral ventricle where the body, posterior and inferior horns unite is called the ___________

Answer 17

trigone

Question 18

Caudal placodes are?

Answer 18

thickenings of neuroectoderm adjacent to the neural crest

Question 19

What will the neural tube eventually become?

Answer 19

brain and spinal cord

Question 20

Failure of the caudal end of the neural tube to close results in this condition

Answer 20

spina bifida

Question 21

Central pathways from GSAs have 3 neurons, the 3rd order neurons always projects to the ____________?

Answer 21

cerebral cortex

Question 22

Which class of axon would be used to bring info on pH from blood vessels?

Answer 22

GVA

Question 23

Visceral mechanoreceptors and baroreceptors transmit to the CNS via

Answer 23

GVA

Question 24

Which type of nerve fiber is subdivided into alpha, beta, delta, and gamma?

Answer 24

A nerve fibers

Question 25

Peripheral nerves are formed of bundles of axons called ____________, these bundles are wrapped in a _________________

Answer 25

fascicles, perineurium

Question 26

Dense collagen fibers provide support to the _____________?

Answer 26

epineurium

Question 27

Light touch, or feeling the wind enters the CNS via GSAs and then ascending via the _______________?

Answer 27

anterior spinothalamic tract

Question 28

Alpha neurons always innervate _________?

Answer 28

skeletal m.

Question 29

Which sensory modality is transmitted the fastest?

Answer 29

proprioception

Question 30

Which classification system came from direct measurements of axonal diameter?

Answer 30

I, II, III, and IV

Question 31

Only 4 of the 12 cranial nerves contain GVE fibers. These are CN III, ______, ______, and ________

Answer 31

VII, IX, X

Question 32

Arrange these fibers in order from fastest conduction to slowest: -small diameter unmyelinated -large diameter myelinated -medium myelinated -small diameter myelinated

Answer 32

-large diameter myelinated -medium myelinated -small diameter myelinated -small diameter unmyelinated

Question 33

Pain and temp are transmitted from cutaneous receptors to the cortex via?

Answer 33

spinothalamic tract

Question 34

T/F: C fibers are always unmyelinated

Answer 34

true

Question 35

The telencephalon starts as 2 swellings connected medially by a thin membrane called the?

Answer 35

lamina terminalis

Question 36

The brain flexure which develops between the metencephalon and the myelencephalon is called the:

Answer 36

pontine

Question 37

T/F: the basal plate forms the sensory neurons

Answer 37

false

Question 38

The spinal cord develops from the:

Answer 38

caudal neural tube

Question 39

T/F: the medulla and cerebellum form from the same secondary vesicle

Answer 39

false

Question 40

The choroid plexus is a 3 layer tissue. What describes the 2nd layer?

Answer 40

scattered pial cells

Question 41

The type of blood vessel located within the choroid plexus is:

Answer 41

fenestrated capillaries

Question 42

The glial cell associated with the choroid plexus:

Answer 42

ependymal cells

Question 43

T/F: hormones and chemical signals can travel within CSF

Answer 43

true

Question 44

CSF within sinuses drains next into?

Answer 44

jugular veins

Question 45

CSF crosses the membrane of the villi. Villi are formed by?

Answer 45

arachnoid mater