cerebrum Flashcards Preview

neuro > cerebrum > Flashcards

Flashcards in cerebrum Deck (18)
Loading flashcards...
1

what is the cerebrum derived from embryologically?

prosencephalon

2

what 2 different types of tissue is the cerebrum composed of?

- grey matter: forms surface of each cerebral hemisphere (cerebral cortex), associated with processing and cognition
- white matter: forms bulk of deeper parts of brain, consists of glial cells and myelinated axons that connect various grey matter areas

3

what are sulci and gyri?

- sulci (grooves, depressions)
- gyri (ridges, elevations)

4

what is the cerebrum divided into 2 by?

longitudinal fissure
falx cerebri descends vertically to fill this fissure

5

what are the main sulci?

- central sulcus: groove separating frontal and parietal lobes
- lateral sulcus: groove separating frontal and parietal lobes form temporal lobe
- lunate sulcus: groove located in occipital cortex

6

what are the main gyri?

- precentral gyrus: ridge directly anterior to central sulcus
- postcentral gyrus: ridge posterior to central sulcus
- superior temporal gyrus: inferior to lateral sulcus

7

what is located at the precentral gyrus?

primary motor cortex

8

what is located at the postcentral gyrus?

primary somatosensory cortex

9

what is the superior temporal gyrus responsible for?

reception and processing of sound

10

what are the association areas of the frontal lobe responsible for?

higher intellect
personality
mood
social conduct and language

11

what do the cortical association areas of the parietal lobe contribute to?

language and calculation
visuospatial functions

12

what are the cortical association areas of the temporal love accountable for?

memory and language
hearing (it is location of primary auditory cortex)

13

what is the cortical association area of the primary visual cortex responsible for?

primary visual cortex located here so its responsible for vision

14

describe the blood supply to the cerebrum

- ant cerebral arteries (branches of internal carotid arteries
- middle cerebral arteries (continuation of internal carotid arteries)
- posterior cerebral arteries (branches of basilar arteries)

15

what do the anterior cerebral arteries supply?

anteriomedial aspect of cerebrum

16

what do the middle cerebral arteries supply?

most of lateral portions of cerebrum

17

what do the posterior cerebral arteries supply?

medial and lateral sides of cerebrum posteriorly

18

describe the venous drainage of cerebrum

via network of small cerebral veins
vessels empty into dural venous sinuses