Nervous System (Part 6a)
What are the 6 major regions of the brain?
What is the largest part of the brain?
What are the deep grooves in the cerebrum called?
What are the shallow depression in the cerebrum called?
What are the bumps in the cerebrum called?
What part of the brain controls higher mental functions such as conscious thought, intellect, and memory storage?
What is the surface layer of the Cerebrum?
The surface layer of gray matter is called what?
What part of the brain processes somatic sensory and motor information?
Name the brain lobes.
The Lateral sulcus seperates what from what?
frontal lobe from temporal lobe
The central sulcus seprataes what?
anterior frontal lobe from posterior parietal lobe
What are the two large sulci in the brain?
The cerebrum has 3 functional principles. what are they?
receives sensory info, sending motor commands
two hemispheres with different functions
correspondence between a specific function and a specific region of cerebral cortex is not precise due to overlap.
What is the name of the cells that are neurons of motor cortex that direct voluntary motor controlling?
Which gyrus is the primary motor cortex?
The precentral gyrus controls what?
This area receives somatic sensory information.
Primary sensory cortex
What are the four special sensory cortexes?
These are masses of gray matter embedded in the white matter of the cerebrum.
The basal nuclei
These direct subconscious activities.
What is the second largest part of the brain?
This coordinates repetitive body movements like walking.
The cerebellum is covered with gray matter called what?
The surface of the cerebellum is covered in a highly folded neural cortex called what?
the anterior and posterior lobes are separated by what?
These peduncles link the cerebellum with midbrain, diencephalon, and cerebrum.
superior cerebellar peduncles
These peduncles link the cerebellum with sensory and motor nuclei in the pons.
middle cerebellar peduncles
These peduncles connect the cerebellum and medulla oblongata and carry ascending, descending tracts from the spinal cord.
inferior cerebellar peduncles
What is the arbor vitae?
highly branched internal white matter of the cerebellum
what do the cerebellar nuclei embedded in the arbor vitae do?
Relay motor information to Purkinje cells
The Diencephalon is made up of what?
The main job of what is to relay and process sensory information?
The hypothalamus is known for controlling what three things?
this processes olfactory and other sensory information and contains motor nuclei that control reflex eating movements.
The hypothalamus has what three main parts?
This is a narrow stalk posterior to the optic chiasm and connects the hypothalamus to the pituitary gland.
This is the floor of the hypothalamus, located between the infundibulum and mamillary bodies and helps to control the pituitary gland function.
What are the two main structures of the midbrain?
The tectum is made up of two pairs of sensory nuclei. Together, they form the what?
The corpora quadrigemina is made up of two pairs of sensory nuclei. what are these pairs called?
Superior and inferior colliculus
The superior colliculus controls what?
The inferior colliculus controls what?
This structure links the cerebellum with the midbrain, diencephalon, cerebrum, and spinal cord.
The sensory and motor nuclei of what cranial nerves are found inside the pons?
V, VI, VII, VIII
Nuclei in control of respiration are found where?
in the pons, the nuclei that process and relay information send it where?
What kinds of tracts does the pons contain?
This structure coordinates complex autonomic reflexes and visceral functions.