Lab Quiz 5

Question 1

rostral vs caudal?

Answer 1

rostral: towards the head, upper
caudal: towards the feet, lower

Question 2

what areas of the brain can be viewed on the midbrain?

Answer 2

superior colliculi, cerebral aqueduct, oculomotor nuclei, periaqueductal gray, spinothalamic tract, cerebral peduncle, inferior colliculi, and medial lemniscus

Question 3

what areas of the brain can be viewed on the pons?

Answer 3

abducen nuclei and basal pons

Question 4

what areas of the brain can be viewed on the medulla?

Answer 4

inferior cerebellar peduncle, inferior olivary nucleus, pyramids, hypoglossal nuclei, spinothalamic tract, 4th ventricle, medial lemniscus, nucleus gracilis, and nucelus cuneatus

Question 5

what are the segments of the corpus callosum?

Answer 5

rostrum: bottom tip of the corpus callosum
genu: anterior horn of the corpus callosum
body: main section above 3rd ventricle of the corpus callosum
splenium: posterior horn of the corpus callosum
lamina terminalis: thin membrane that descends from the rostrum, makes the nose bridge of the seahorse
anterior commissure: bump that lies on the back of the lamina terminalis
pineal gland: lies under splenium above tectum
septum pellucidum: thin membrane over the lateral ventricle

Question 6

what are the areas viewed on a coronal brain slice?

Answer 6

corpus callosum: arch over the ventricle
septum pellucidum: septum separating the ventricle
lateral ventricle: space
anterior commissure: white arch below the lateral ventricles

Question 7

what are the structures of the diencephalon from a sagittal view?

Answer 7

optic chiasm: bump at the tip of the nose of the seahorse
hypothalamus: nose of the seahorse
hypothalamic sulcus: groove between hypothalamus and thalamus
thalamus: head of the seahorse below corpus callosum
interthalamic adhesion: bump in the thalamus