-
What are the four external lobes of the brain?
- Frontal
- parietal
- temporal
- occipital
-
What is considered by some authors to be a fifth external lobe of the brain?
the insula
-
Insula
- The part of the brain that is folded inside
- it is only visible when we cut the lateral surface of the brain away
-
Sulci (singular sulcus)
- Latin: "Furrows, groove, ditch, trench"
- Fissures or grooves in the surface of the cortex
-
Deep grooves are called _______.
fissures
-
Gyri (singular gyrus)
bumps on the surface of the cortex
-
________ and ________ form the borders between the lobes.
Sulci, fissures
-
The ______ lobe and _______ lobe are separated by the central sulcus.
frontal, parietal
-
On either side of the central sulcus are two parallel, almost identical-looking gyri. They are called the ...
- precentral gyrus (rostrally part of the frontal lobe)
- -involved in the motor systm
- postcentral gyrus (caudally, part of the parietal lobe
- -involved in sensations from the face and body surfaces (the somatosensory system)
-
the frontal and parietal lobes are separated from the temporal lobe by the _____ _____, also called the Lateral sulcus or the Sylvian fissure.
lateral fissure
-
parieto-occipital sulcus
- Separates the parietal and occipital lobes
- only visible on the midsagittal surface
- not evident on the lateral surface of the brain
-
Medial longitudinal fissure
separates the brain into two hemispheres
-
Transverse fissure
separates the cerebrum form the cerebellum
-
What German scientist in the late 1800s early 1900s , started slicing a brain and looking at the sections through a microscope?
Korbinian Brodmann
-
Brodmann's Areas:
Parietal Lobe Areas 3, 1, and 2 (postcentral gyrus):
- Primary somatosensory cortex
- receiving information about the face and body surface.
- no one knows why we list them in this order
- Taste is also here, and nearby in area 43
NEED TO KNOW
-
Brodmann's Areas:
Frontal Lobe, Area 4 (precentral gyrus):
- primary motor cortex
- sending axons to the alpha motor neurons of the spinal cord (executing movement)
- NEED TO KNOW
-
Brodmann's Areas:
Frontal Lobe, Area 44 and 45: Broca's area
- In most people, located on the left side
- responsible for the production of speech (movement of the throat and tongue).
NEED TO KNOW
-
Brodmann's Areas:
Occipital Lobe, Area's 17, 18, and 19.
- Visual cortex (sensory, sight)
- Area 17 is also called primary visual cortex or striate cortex.
- NEED TO KNOW
-
Brodmann's Areas:
Parietal Lobe, Area 43
Taste is found here, near primary somatosensory cortex
GOOD TO KNOW
-
Brodmann's Areas:
Frontal Lobe, Area 6 supplementary motor area
planing or imagining movement
GOOD TO KNOW
-
Brodmann's Areas:
Frontal Lobe, Area 8 Frontal eyelids
Eye movement
GOOD TO KNOW
-
Brodmann's Areas
Temporal Lobe Area 41 and 42: Primary auditory cortex
sensory, hearing
GOOD TO KNOW
-
Brodmann's Areas
Temporal Lobe Area 22p (posterior part of 22) Wernicke's area
Responsible for the understanding of speech and sounds.
GOOD TO KNOW
|
|
