Brain- General

Question 1

Embryonic Development of the Brain week 4

Answer 1

brain arises from rostral part of the neural tube. 
3 primary vesibles:
prosephalon- forebrain
mesencephalon- midbrain
rhombencephalon- hindbrain

Question 2

Embryonic Development of brain week 5

Answer 2

secondary brain vesicles form.
procephalon becomes- telecephalon and diencephalon
mesencephalon remains
rhombencephalon becomes- metencephalon and myelencephalon

Question 3

Telencephalon

Answer 3

cerebral hemispheres

Question 4

Dienchephalon

Answer 4

thalamus, hypothalamus, epithalamus

Question 5

Mesencephalon

Answer 5

midbrain

Question 6

Metencephalon

Answer 6

cerebellum and pons

Question 7

myelencephalon

Answer 7

medulla oblongata

Question 8

Paired lateral ventricle

Answer 8

cerebral hemispheres. Horseshoe shaped. anterior, posterior and inferior horn. Each one is separated by the septum pellucidum

Question 9

septum pellucidum

Answer 9

separates the lateral ventricles

Question 10

Ventricles (order)

Answer 10

paired lateral ventricles–> 3rd ventricle (diencephalon) –> cerebral aqueduct–> 4th ventricle (hindbrain) –> subarachnoid space or central canal

Question 11

interventricular foramen

Answer 11

connects the paired lateral ventricles with the 3rd ventricle

Question 12

paired lateral apertures and medial aperture

Answer 12

paired later- side walls
median- roof
openings that connect the ventricles with the subarachnoid space which allows the CSF to fill ventricles and subarachnoid space

Question 13

choroid plexus

Answer 13

lies in roof of the ventricles.
knot of porous capillaries surrounded by a single ependymal layer.
makes CSF

Question 14

cerebral spinal fluid

Answer 14

filtrated plasma by ependymal cells. contains glucose, O2, vitamins, and ions
500 ml/day

Question 15

hydrocephalus

Answer 15

excess accumulation of CSF in ventricles or subarachnoid space.