bio 315 lab exam 2 study guide questions and answers 2024

medulla oblongata "legs" of seahorse olives pink, smooth structure pyramids medial, anterior "shins" of the seahorse inferior cerebellar peduncles posterior "calves" of seahorse glossopharyngeal nerve lateral and superior to olives (little circle) vagus nerve lateral to olive, inferior to glossopharyngeal nerve hypoglossal nerve longer (hotdog bun), medial to olive spinal accessory nerve 2 v-shapes on sides of "legs" Pons "belly" of the seahorse middle cerebellar peduncles circular flat portion on side of pons superior cerebellar peduncles posterior archway (9) fourth ventricle "triangle" seen inside brain rhomboid fossa depression on the anterior side of the "triangle" cerebellar part of the 4th ventricle posterior superior portion of the "triangle" abducens nerve lines on pons (abs) facial nerve medial line lateral to abducens nerve vestibulocochlear nerve two lines lateral to facial nerve trigeminal nerve snowman shape on lateral side of pons midbrain neck on seahorse corpora quadrigemina posterior butterfly (collective structure) superior colliculi top "wings" of corpora quadrigemina inferior colliculi bottom "wings" of corpora quadrigemina substantia nigra dark lines seen on the brain steak associated with Parkinson's disease cerebral aqueduct hole seen on other side of steak oculomotor nerve internal "necklace" (choker) trochlear nerve external "necklace" Diencephalon head/hat thalamus brain/eye of seahorse