Forebrain - cerebrum, Biology

CEREBRUM -

  1. Largest part of brain. 2/3 of brain. 4/5 of brain's weight.
  2. Cerebrum is devided into 2 cerebral hemispheres by longitudinal cerebral fissure.
  3. Gyri and sulci are present on surface to bring neuron closer.
  4. Surface area is increased. It occupies 2200 cm2, nearly 3 times to inner surface of cranium.
  5. Both hemispheres are connected by a largest commissure i.e. corpus callosum.
  6. Its function is to tell one side of the brain what the other side is doing.
  7. Anterior and posterior ends curved downward forming genu & splanium.
  8. Splanium is attached to fornix.
  9. Between callosum splanium & fornix 5th ventricle or pseudo ventricle is present.
  10. Outer part of wall is cortex and inner part is medulla.
  11. Dorsal wall of cerebrum is thick known as neopellium.
  12. Lumen is lat. ventricules or Ist (right) or 2nd (left) ventricle open in to diocoel by foramen of monaro.
  13. A central fissure divide each hemisphere into frontal lobe and parietal lobe.
  14. A perietooccipital fissure demarcates the parietal lobe from occipital lobe.
  15. A lateral or sylvian fissure demarcates the frontal & parietal lobe from temporal lobe.
  16. So total 4 lobes present -   Ant. - Frontal lobe, Middle - Parietal lobe, Post. - Occipital lobe, Lat. - Temporal lobe.
  17. Temporal lobes are concerned with sound & smell.
  18. Parietal lobe is concerned with pain, touch, temp. & taste.
  19. Frontal lobes controls volumtary actions and some involuntary actions.
  20. Visual and auditory areas in the occipital lobes are centre of sight and hearing.
  21. Speech and smell areas lie in frontal lobe, speech area is broca's area.

FUNCTIONS -

1.      Intelligency, memory, thinking, reasoning, learning, decission taking.

2.      Seeing, speaking, laughing & weeping.

3.      To control voluntary acitons.

Posted Date: 10/3/2012 1:25:05 AM | Location : United States







Related Discussions:- Forebrain - cerebrum, Assignment Help, Ask Question on Forebrain - cerebrum, Get Answer, Expert's Help, Forebrain - cerebrum Discussions

Write discussion on Forebrain - cerebrum
Your posts are moderated
Related Questions
detail information about ave?

reproduction mode

Define Reagents for Measurement of pH? Buffer solutions of pH 4, pH 7 and pH 9.18 for calibration and an unknown solution (i.e. solution of unknown pH) You can prepare these

Preliminary screening stage of battery During the preliminary screening stage in the development of the battery, items in the original pool that did not attain satisfactory int

The interior of the right atrium has a rough anterior part, the atrium proper and a smooth part called the sinus venarum. Also it has an appendage called the auricle. All the large

Tabulate macro & micro nutrients on the basis of -elements, source, synthesis site, symptoms

Explain the Composition of MacConkey Agar? Bactopeptone - 17.0 gm Protease Peptone - 3.0 gm Lactose - 10.0 gm Bile salt mixture - 1.5 gm Sodium chloride - 5.0 gm

Does the trend of the change in shape of the graph as temperature increases differ when a different gas is examined?

TYPES OF DISEASE     communicable Caused by infective agents disease

During mitotic anaphase is there separation of homologous chromosomes or separation of identical chromatids? In the anaphase of mitosis the identical chromatids separate and co