Anatomy of the Brain Stem

Which part of the brainstem contains important descending tracts?

What is the function of the substantia nigra?

Which structure receives input from the cochlea via the auditory nerve?

What type of fibers occupy the medial part of the crus cerebri?

What is the primary function of the brainstem?

Which part of the brainstem contains the important nuclei of the 3rd to 12th cranial nerves?

What is a result of damage to the substantia nigra?

What is the name of the structure that separates the occipital lobes from the cerebellum?

What is the name of the groove that divides the four colliculi on the posterior surface of the midbrain into superior and inferior pairs?

Which of the following is NOT a region of the brainstem?

What is the location of the trochlear nucleus in the central gray matter?

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

Where do the fibers of the trochlear nerve decussate completely?

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

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

What is the primary function of the superior colliculi?

Which structure is connected to the inferior colliculus by the inferior brachium?

Where do the trochlear nerves emerge from?

What is the region bounded by the crus cerebri on either side?

Where does the oculomotor nerve pass through?

What is the primary function of the fibers emerging from the pretectal nucleus?

Which tract is responsible for transmitting visual information from the superior colliculus to the spinal cord?

What is the name of the nucleus responsible for transmitting signals from the optic nerve to the oculomotor nerve?

Which of the following structures is NOT a component of the midbrain at the level of the inferior colliculi?

What is the primary function of the oculomotor nucleus?

At the level of the superior colliculi, which nucleus contains somatic efferent fibers that control the medial rectus, inferior rectus, superior rectus, inferior oblique, and the striated muscle in the levator palpebrae superioris?

What is the structure that connects the third and fourth ventricles and is lined by ependyma and surrounded by the central gray matter?

Which structure consists of 2 thick nervous cords extending from the forebrain to the pons?

At the level of the superior colliculi, which tract is involved in the transmission of visual information?

Which nucleus is involved in the control of convergence of the eyes?

Which structure receives input from the cerebral cortex and the cerebellum?

Which part of the brainstem is involved in the preservation of muscular tone?

What is the function of the superior colliculus?

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

Which tract originates from the red nucleus?

What is the characteristic of the red nucleus that gives it its reddish hue?

Which nucleus is involved in the accommodation of the lens?

Which structure receives input from the lentiform nucleus, subthalamic and hypothalamic nuclei?

Which nucleus is involved in the coordination of movement and gait?