The Central Nervous System Flashcards
How are the brains ventricles connected?
The lateral ventricles, located in the cerebrum and separated by the septum pellucidum, are connected to the third ventricle by the interventricular foramina. The third and fourth ventricles connected by the cerebral aqueduct.
What is the role of the Gyri?
Increase the surface area of the brain.
What are Sulci and Fissures?
Sulci are a shallow depression while fissures are deep depressions in the surface of the brain.
What are the Four lobes of the brain?
The Frontal, Parietal, Occipital, and Temporal.
What is the Somestheic Motor Cortex?
Located on either side of the central sulcus, it consists of the Primary Motor Cortex localed on the precentral gyrus and the Somato-sensory cortex located on the postcentral gyrus. The number of receptors in the cortex is not proportional to the size of the body part.
What is the general name of a brain area that is involved in the conscious awareness of sensation?
Sensory Area
What Lobe contains the visual association area?
Occipital Lobe
What is a general area when we analyze, recognize, and act on sensory inputs based on past experiences?
Association Areas
What is Broca’s Area involved with?
Motor Speech
What is associated with the Prefrontal Cortex?
Cognition, Recall, and Personality.
What are the fibers that connect the left and right hemispheres of the brain called?
Commissural Fibers
What are the fibers called that connect parts in the same hemisphere called?
Association Fibers
What fibers connect the cortex to the rest of the Central Nervous system?
Projection Fibers
What is the function of the largest part of the diencephalon?
The role of the thalmus is to be a filter for the brain. It decides if a stimulus is important enough to pass to the cerebrum as it is impossible for the brain to respond to every stimulus.
What is the role of Mammillary Bodies?
Recollective Memory
What is the role of the Infundibulum?
To connect the pituitary gland to the hypothalamus.
What is the role of the hypothalamus?
Not only does it serve as a link between the endocrine and nervous system, but it is home to many essential centers such as thirst, body temperature, and hunger. Additionally, it also takes in sensory information to determine mood.
What gland determines the onset of puberty?
The Pineal Gland
What type of neurons make up the Cerebral Cortex?
Interneurons