Intro And Sagittal Brain

Front 1

brain and spinal chord develop embryologically from what type of structure

Back 1

tube

Front 2

proencephelon consists of

Back 2

telencephelon (top)
diencephelon (below)

Front 3

below the diencephelon is the ______

Back 3

mesencephelon

Front 4

below the mesencephelon is the ______ which consists of ______ & _______

Back 4

rhombencephelon consists of metencephelon (superior) & myencephelon

Front 5

below the myencephelon is the _________

Back 5

spinal chord

Front 6

rostral means

Back 6

towards snout

Front 7

caudal mans

Back 7

towards tail

Front 8

the brainstem consists of (inferior to superior)

Back 8

medula, pons, midbrain

Front 9

The prominent posterior (dorsal) part of the midbrain is the

Back 9

tectum

Front 10

The 4th ventricle

Back 10

overlies the pons and rostral 1/2 of the medulla

Front 11

The cerebral aqueduct passes through

Back 11

the midbrain

Front 12

Cerebellum overlies

Back 12

the 4th ventricle

Front 13

Diencephalon

Back 13

-just rostral to midbrain
-at the core of the cerebral hemisphere

Front 14

3 parts of the diencephelon

Back 14

thalamus, hypothalamus, epithalamus

Front 15

The thalami are usually

Back 15

connected across the midline by a mass intermedia

Front 16

3rd ventricle

Back 16

lies between the thalami and surrounds the massa intermedia

Front 17

Anterior wall of 3rd ventricle (lamina terminalis) includes

Back 17

anterior commissure

Front 18

Components of epithalamus

Back 18

pineal gland and posterior commissure

Front 19

Parts of the hypothalamus include

Back 19

mammillary bodies & pituitary stalk

Front 20

A major landmark just rostral and inferior to hypothalamus

Back 20

is optic chiasm

Front 21

A large white matter tract arching over the thalamus is

Back 21

the body of the fornix

Front 22

Underlying the gray matter is the largest white matter structure

Back 22

corpus callosum

Front 23

Stretching between the corpus callosum and fornix is a thin semitransparent membrane which separates the left & right lateral ventricles

Back 23

septum pellucidum

Front 24

Four of the brain lobes can be seen in mid-sagittal section

Back 24

temporal
occipital
parietal
frontal

Front 25

The epithalamus

Back 25

not an integrated funtional unit, but has structures which function in several systems

Front 26

Pineal gland

Back 26

-a small gland floating in CSF between midbrain & corpus callosum
-It is attached to the brain by a stalk with dorsal and ventral walls
- The 3rd ventricle extends up into the stalk

Front 27

On the dorsomedial thalamus is a bump (habenula) overlying the ________

Back 27

habenular nucleus

Front 28

Arching over the dorsomedial thalamus is the

Back 28

stria medullaris thalami

Front 29

The _______ is in the dorsal wall of the pineal stalk

Back 29

habenular commissure

Front 30

Stria medullaris thalami arches over the

Back 30

dorsomedial thalamus

Front 31

Stria medullaris thalami

Back 31

is a complex afferent fiber bundle to the habenula

Front 32

Habenular commissure probably includes both

Back 32

commissural and decussating fibers

Front 33

The pineal gland projects into

Back 33

a large subarachnoid space

Front 34

Because it develops calcifications ("brain sand"), at one time it proved instrumental as a landmark to plane film radiologists. These calcifications are also visable on CT.

Back 34

pineal body

Front 35

Pineal tumor compresses what?
What symptoms will it cause?

Back 35

the midbrain tectum (rostral part is visual system) which in turn compresses (closes) the cerebral aqueduct.

Produces simultaneous symptoms of hydrocephalus (increased CSF pressure) and eye movement disorders

Front 36

Posterior commissure

Back 36

- attaches between the ventral wall of the pineal stalk and the midbrain tectum near the junction of the 3rd ventricle and cerebral aqueduct

- Fibers interconnect various nuclei involved in the visual system

Front 37

PC fibers interconnect

Back 37

midbrain nuclei involved in the visual system