NB 1 Exam Review and Terminology

Question 1

Notochord induction

Answer 1

Neural Plate

Question 2

From which of the
following would the epithalamus most likely develop?
A. Telencephalon
B. Diencephalon
C. Mesencephalon
D. Myelencephalon
E. Metencephalon

Answer 2

B. Diencephalon

Question 3

Diencephalon forms which structures?

Answer 3

Thalamus, Hypothalamus, and epithalamus

Question 4

In development of the forebrain which of the following structures most likely develops from telencephalon?
A. Mamillary bodies
B. Lateral ventricle
C. Anterior pituitary
D. Massa Intermedia
E. Third ventricle

Answer 4

Lateral Ventricle

Question 5

Cranial nerve nuclei situated more laterally in the brainstem develop from the ___1________ and most likely _____2________ neurons

Answer 5

1. Alar plate
2. Sensory

Question 6

What are the two main arteries that supply the brain?

Answer 6

Vertebral and internal carotid arteries

Question 7

What does the Circle of Willis made up of (which vessels)?

Answer 7

-Proximal posterior cerebral arteries
-The posterior communicating arteries
-Internal carotid arteries
-Just before bifurcations, the proximal anterior cerebral arteries, and the anterior communicating artery

Question 8

The anterior spinal artery is formed as a branch of the vertebral artery and supplies the _______

Answer 8

Medial medulla

Question 8

The posterior inferior cerebellar artery (PICA) supplies: ______________

Answer 8

Lateral aspect of medulla and parts of the cerebellum

Question 9

The anterior inferior cerebellar artery (AICA) supplies: _____________

Answer 9

Lateral aspect of pons, including region of middle cerebellar peduncle and cerebellum

Question 10

The superior cerebellar artery supplies: ______________

Answer 10

region of superior cerebellar peduncle, cerebellum, and parts of midbrain

Question 11

Circle of Willis is formed by proximal branches of:

Answer 11

-Posterior cerebral artery
-Posterior communicating arteries
-Part of internal carotid artery prior to its bifurcation (blood supply to the brain is important because it supplies the nerves that innervate the body from top to bottom–ascending, and also bottom to top–descending tracts)

Question 12

Anterior cerebral artery supplies:

Answer 12

Rostral part of cerebral cortex and its medial aspect

Question 13

Middle cerebral artery supplies:

Answer 13

Lateral aspect of cerebral cortex

Question 14

Posterior cerebral artery supplies:

Answer 14

The occipital and posterior aspects of parietal cortex and lateral aspect of midbrain

Question 15

Serotonin containing neurons may play a role in mediating affective processes such as:

Answer 15

aggressive behavior and arousal

Question 16

Fluoxetine (Prozac) mechanism of action:

Answer 16

Selectively blocks reuptake of serotonin and enhances 5-HT levels in the brain.