General Organization of the Central Nervous System Lobes 2

Question 1

What are the 3 external gyri of the temporal lobe?

What are the 2 internal sulci and gyrus of the temporal lobe?

Answer 1

Superior temporal gyri
Middle temporal gyri
Inferior temporal gyri.

Occipitotemporal gyrus
Occipitotemporal sulcus
Collateral sulcus.

Question 2

Temporal functions

What is the fuction of the primary auditory cortex?

Answer 2

Initial auditory sensory input

Question 3

What is the importance and side of residence of Wernicke’s Area?

Answer 3

Comprehension of language.

Left hemisphere.

Question 4

Much of th temporal lobe, especially the inferior surface is…

Answer 4

involved with higher order processing of visual information.

Question 5

The medial side of the temporal lobe is…

Answer 5

involved in complex aspects of learning and memory. (Occipitotemporal gyrus)

Question 6

Where is the occipital lobe located and what is its primary responsibility?

Answer 6

Back of the cortex.

Primary area responsible for vision and for the coordination of eye movements.

Question 7

What are the borders of the occipital lobe?

Answer 7

Laterally; Imaginary line of parietooccipital sulcus to the preoccipital notch

Medially; Parietooccipital sulcus and line from the preoccipital notch to the splenium of the corpus callosum.

Question 8

What is the unusual name of the occipital lobe primary visual cortex?

Answer 8

V-1

Brodmann’s area 17

Question 9

What are the 3 general functions of the occipital lobe?

Answer 9

Integrates movements in focusing the eye.
Correlating visual images with previous visual experiences and other sensory stimuli
Conscious perception of vision

Question 10

Limbic Lobe Borders

Answer 10

A strip of cortex encircling the junction of the telencephalon/diencephalon (from a midline sagital view.)
Starting anteriorly, its inner border is with the Corpus Callosum and the Callosasl sulcus. Its outer border is the cingulate sulcus and continues with the subparietal sulcus and circluing in an imaginary arc to the collateral suclus inferiorly with the temporal lobe border.

Question 11

What 2 gyri make up the Limbic Lobe?

Answer 11

Cingulate Gyrus

Parahippocampal Gyrus

Question 12

What are the 3 functions of the Limbic Lobe?

Answer 12

Emotional Response
Drive-related Behavior
Memory

Question 13

Explain the Hippocampus’s relationship to the Limbic system. 2

Answer 13

Hippocampus is functionally a part fo the limbic system although not a part of the limbic lobe.

A lot of short term memory.

(The hippocampus is folded into the temporal lobe at the hippocampal sulcus)

Question 14

What is the primary and 2 other functions of the Insular Lobe?

Answer 14

Monitor’s the body’s perception of its physiological states and needs.
Memory
Integration of other cerebral activities

Question 15

What is the Cranial Nerve that does not go to the thalamus?

Answer 15

Olfactory Nerve

Question 16

While Cranial Nerves pass through the Thalamus, what else passes through the Thalamus?

Answer 16

Looped information from the Motor System synapse in Thalamus. Cerebellum to cortex and Basal ganglia to cortex.
Limbic Projections to the Cortex pass through Thalamus.

Question 17

The Hypothalamus forms what part of the ventricles and has what two features that can be seen from the inferior brain?

Answer 17

Forms the floor of the 3rd ventricle.

Projects the Infundibular Stalk and 2 rounded Mammillary bodies.

Question 18

What is the function of the Hypothalamus?

Answer 18

Major visceral control center of the brain and is involved in limbic system. (Communicates w/ pituitary gland for hormones and ANS.

Question 19

What are the 2 Basal Ganglia in the brainstem?

Answer 19

Substantia nigra

Subthalamic Nucleus

Question 20

What do the Cerebral Peduncles do and what is the name of their pathway type?

Answer 20

Connect parts of the brain

Projection fibers.