Cerebellum Anatomy and Functions Quiz

The largest of the deep cerebellar nuclei, shaped like a crumpled bag with its opening facing medially.

An ovoid nucleus located medial to the dentate nucleus.

A nucleus with rounded cell groups medial to the emboliform nucleus.

This nucleus lies near the midline in the vermis and close to the roof of the fourth ventricle.

These serve as the cerebellar outflow, connecting the cerebellum to other parts of the brain.

The two main types of input to the cerebellar cortex.

The terminal fibers of the olivocerebellar tracts.

The terminal fibers of all other cerebellar afferent tracts.

The cerebellum is located in the posterior cranial fossa, covered by the tentorium cerebelli. It is the largest part of the hindbrain and sits behind the fourth ventricle, pons, and medulla oblongata.

The cerebellum has an ovoid shape and a constricted median part. It consists of two cerebellar hemispheres connected by a narrow median vermis.

Three symmetrical bundles of nerve fibers called the superior, middle, and inferior cerebellar peduncles connect the cerebellum to the posterior aspect of the brainstem.

The anterior lobe of the cerebellum includes the lingula, central lobule, culmen, and their counterparts in the cerebellar hemisphere.

The middle lobe of the cerebellum includes the declive, folium, tuber, pyramid, uvula, and their counterparts in the cerebellar hemisphere.

The flocculonodular lobe of the cerebellum includes the nodule and flocculus.

A section through the cerebellum parallel to the median plane shows a branched appearance called the arbor vitae.

The uvulonodular fissure is a deep horizontal fissure separating the superior and inferior surfaces of the cerebellum.

The three bundles of nerve fibers connecting the cerebellum to the brain stem. They are the superior, middle and inferior peduncles.

The pathway that carries signals from the cerebral cortex to the cerebellum through the pons. It's a major route for motor coordination.

Fibers from the cerebral cortex travel through the corona radiata and internal capsule, terminating on the pontine nuclei.

Located in the pons, they receive signals from the cerebral cortex and project to the cerebellum.

These fibers cross the midline and enter the opposite cerebellar hemisphere through the middle cerebellar peduncle.

The pathway that carries signals from the cerebral cortex to the cerebellum through the inferior olivary nuclei. It's involved in motor learning and coordination.

Located in the medulla, they receive signals from the cerebral cortex and project to the cerebellum through the inferior cerebellar peduncle.

These cells are found in the molecular layer and their dendrites branch in the molecular layer. Their axons branch and form synapses with the dendrites of the granular cells.

These fibers run parallel to the long axis of the folia (folds) in the cerebellar cortex and make synaptic connections with the spinous processes of Purkinje cell dendrites.

These cells are located in the molecular layer and are involved in regulating the activity of Purkinje cells.

This layer of the cerebellar cortex contains two types of neurons: outer stellate cells and inner basket cells. It also contains dendrites and axons that run parallel to the folia.

This zone of the cerebellar hemisphere helps control the muscles of the hands and feet. It's located just outside the vermis.

This region of the cerebellar cortex controls the movements of the body's central axis, including the neck, shoulders, and hips.

This zone of the cerebellar hemisphere assists with planning of complex body movements and is involved in the conscious assessment of movement errors.

This structure is involved in coordinating voluntary movements, maintaining balance, and learning motor skills.

The fastigial nucleus primarily affects the extensor muscles on the same side of the body.

Neurons in the fastigial nucleus send their axons through the inferior cerebellar peduncle to connect with neurons in the reticular formation.

The axons in the reticular formation control motor activity in the spinal cord through the reticular tract.

A collection of pathways that carry information from the cerebellum to other parts of the brain and spinal cord.

This pathway influences ipsilateral motor activity by connecting the globose and emboliform nuclei to the rubrospinal tract.

Carries information from the globose and emboliform nuclei to the red nucleus, which then sends signals to the ipsilateral motor neurons in the spinal cord.

A structure in the midbrain involved in motor control and coordination.

A group of motor neurons in the spinal cord that directly innervate skeletal muscles.

The cortico-reticular fibers originate in various areas of the cerebral cortex, especially the sensorimotor regions. They descend and connect to the reticular formation.

The reticular formation, a network in the brainstem, sends fibers to the cerebellum through the inferior and middle cerebellar peduncles.

Connects the cerebellum to the midbrain. It carries information related to movement coordination and balance.

Connects the cerebellum to the pons. It transmits information related to voluntary movements initiated by the cerebrum.

Connects the cerebellum to the medulla oblongata. This peduncle relays sensory information about body position and movement.

It provides the cerebellum with information about balance, head position, and movement from the inner ear. This information is relayed to the cerebellum through the inferior cerebellar peduncle.

These nuclei receive sensory information from the inner ear and relay it to the cerebellum. This helps the cerebellum coordinate movements and maintain balance.