Define central nervous system, Biology

Assignment Help:

Q. Define Central nervous system?

The nervous system begins as a simple tube during embryonic development (then anterior part expands and also ventricles are formed). 

Forebrain -> L. and R. cerebral hemispheres (subdivided into frontal, parietal, occipital, temporal lobes).

These centers include the cerebral cortex and are responsible for motor skills, perception, thinking, memory, speech, ...and other cognitive functions.

Diencephalon -> Thalamus and Hypothalamus. 

The thalamus acts as a major relay station for sensory input.

Hypothalamus regulates autonomic functions (e.g. body temp., water balance, metabolism, appetite, sex drive, ...)

Brain Stem -> Midbrain, Pons, Medulla Oblongata and Cerebellum.

Midbrain:  reflex centers for hearing and vision (occulomotor nerve)

Pons:  main center for control of breathing

Medulla:  regulate vital visceral activity (e.g. HR, BP, breathing, swallowing, sneezing, vomiting,..)

Cerebellum -> precise control of motor skills and spatial positioning (fine tuning of skeletal muscles/ Proprioreception).


Related Discussions:- Define central nervous system

Cytological approach, Write an essay on cytological approach in taxonomy.

Write an essay on cytological approach in taxonomy.

Horse diseases-epidemiology, Epidemiology Infection is transmitted   b...

Epidemiology Infection is transmitted   by direct contact between infected domestic and wild animals and susceptible livestock; by arthropod vector (Phlebotomus, Aedes and Cul

What percentage of the father''s body was covered by burns, The Jones famil...

The Jones family was caught in a fire but escaped. Unfortunately the father and daughter suffered burns. The father had second degree burns on his chest, abdomen, and both arms, an

Define components of total parenteral nutrition, Define Components of Total...

Define Components of Total parenteral nutrition? Glucose: Initiated at the rate of 6 mg/kg/min and increased upto 12-1.4 mg/kg/min, but care to be taken to prevent hyperglyce

#ALIMENTARY SYASTEM.., #in which part of alimentary canal oblique muscle fo...

#in which part of alimentary canal oblique muscle found?

Hominid phylogeny, In the above sections we discussed in detail the fossil ...

In the above sections we discussed in detail the fossil record of primates in general and more particularly those of apes and the humans. Despite the fact that in recent years a nu

Give detail explanation about swimming, Give detail explanation about Swimm...

Give detail explanation about Swimming Swimming is an excellent form of exercise. Swimming can improve the posture and circulation. It is a healthy activity. There are certain

Explain the criteria for assessment of folate status, Explain the Criteria ...

Explain the Criteria for Assessment of Folate Status Red cell folate, continues to be used as an important index of folate status. It is suggested that adequate folate status i

Excretory organs, why the excretory organ of prawn is called ''green gland'...

why the excretory organ of prawn is called ''green gland''?

Chloroplasts , Chloroplasts Like mitochondria, chloroplasts are also di...

Chloroplasts Like mitochondria, chloroplasts are also distinctive organelles of eucaryotic cell. But they are found only in plant cells. Chloroplasts contain membranes forming

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd