Neuroembryology

Question 1

Cerebellum derives from which part of embryonic brain?

Answer 1

Metencephalon (during week 6)

Question 2

Embryonic brain divided into 3 areas

Answer 2

Forebrain = prosencephalon
Midbrain = mesencephalon
Hindbrain = rhombencephalon

Question 3

Prosencephalon divided into 2 areas

Answer 3

Telencephalon
Diencephalon

Question 4

Rhombencephalon divided into 2 areas

Answer 4

Metencephalon
Myelencephalon

Question 5

Telencephalon consists of

Answer 5

Cerebrum

Question 6

Diencephalon consists of

Answer 6

prethalamus, thalamus, hypothalamus, subthalamus, epithalamus, and pretectum

Question 7

Cerebrum consists of

Answer 7

cerebral cortex, underlying white matter, and the basal ganglia.

Question 8

Another name for Tectum

Answer 8

corpora quadrigemina

Question 9

Mesencephalon consists of

Answer 9

tectum (or corpora quadrigemina), tegmentum, the ventricular mesocoelia, and the cerebral peduncles, as well as several nuclei and fasciculi.

Question 10

Rhombencephalon consists of

Answer 10

medulla, pons, and cerebellum

Question 11

Rhombencephalon = subdivided in a variable number of transversal swellings called rhombomeres - how many and how are they named

Answer 11

Human embryo = eight rhombomeres can be distinguished, from caudal to rostral: Rh7-Rh1 and the isthmus (the most rostral rhombomere)

Question 12

Rhombomeres Rh7-Rh4 form?

Answer 12

Myelencephalon (later becoming the medulla oblongata, a caudal portion of the fourth ventricle, and portions of the cranial nerves VIII, IX, X, XI, XII)

Question 13

Rhombomeres Rh3-Rh1 form?

Answer 13

Metencephalon (later becoming the pons, cerebellum, a portion of the fourth ventricle, and portions of the cranial nerves V, VI, VII, VIII).