Anatomy of the Brain Stem

What is the function of the brainstem in relation to the spinal cord and forebrain?

Which of the following structures is NOT part of the brainstem?

What is the name of the opening in the tentorium cerebelli that allows the midbrain to pass through?

How many colliculi are found on the posterior surface of the midbrain?

What is the length of the midbrain?

Which structure is bounded on either side by the crus cerebri?

What is the name of the nerve that emerges from a groove on the medial side of the crus cerebri?

What connects the inferior colliculus to the medial geniculate body?

What is the name of the region where many small blood vessels perforate the floor of the interpeduncular fossa?

What is the direction in which the superior and inferior brachia ascend on the lateral aspect of the midbrain?

What is the main function of the oculomotor nucleus?

Which part of the midbrain connects the third and fourth ventricles?

What is the term for the bundle of nerve fibers that connects the cerebral cortex to the spinal cord?

What is the name of the darkly pigmented grey matter in the ventral portion of the midbrain?

Which structure contains the cranial nerve nuclei, including the oculomotor nucleus?

Which nucleus supplies preganglionic parasympathetic fibers to the eye?

What is the function of the red nucleus in relation to movement?

What is the location of the trochlear nucleus in the midbrain?

Which structure carries proprioceptive and fine touch sensations from the opposite side of the body?

Which structure lies in the upper level of the midbrain and is involved in visual reflexes?

What is the origin of the rubrospinal tract and rubroolivary tracts?

Where do the fibers of the trochlear nerve decussate completely?

What is the location of the mesencephalic nuclei of the trigeminal nerve?

Which nucleus contains the primary sensory neurons that innervate the muscle spindle of the masticatory and other muscles?

What is the structure that occupies the central part of the tegmentum, anterior to the cerebral aqueduct?

What is the function of the substantia nigra in the brainstem?

Which of the following structures is situated between the tegmentum and the crus cerebri?

What is the function of the corticospinal and corticonuclear fibers in the crus cerebri?

Which lemniscus carries general sensations from the opposite side of the head and face?

What is the composition of the neurons found in the substantia nigra?

What is the function of the fibers that form the tectospinal and tectobulbar tracts?

Where is the oculomotor nucleus located?

What is the name of the nucleus that receives afferent fibers from the optic nerve and relays them to the parasympathetic nucleus of the oculomotor nerve?

Which of the following structures is NOT a part of the motor tracts found in the transverse section of the midbrain at the level of the inferior colliculi?

What is the name of the nerve that emerges from the medial side of the crus cerebri in the interpeduncular fossa?

Which of the following structures connects the lateral geniculate body to the superior colliculus?

What is the function of the pretectal nucleus in the light reflex pathway?

Which of the following structures is found in the central gray matter of the midbrain?

What is the name of the tract that connects the cerebral cortex to the spinal cord?

Which of the following structures is NOT a part of the sensory tracts found in the transverse section of the midbrain at the level of the inferior colliculi?