Рет қаралды 219
Aslam o alikum
I am Hassam ur Rahman and I am teaching Fsc biology since 2014 .I am always trying to improve myself and provide best lecture to students.i am taking content for the lecture from authentic and relevant sources but human errors are possible . you are requested to please highlight the mistakes.My lectures are equally reliable for Fsc and mdcat students
#visiblescience #mdcatbiology #alevelbiology #neetbiology #fscbiology
My personal channel, I am sure it will change your life and very beneficial for you
/ @hassamurrahman
My Facebook page link
www.facebook.c...
This lecture is about
Disorders Of Nervous System
Disorders of nervous system can be categorized into two main types i.e. vascular disorders e.g.
paralysis and functional disorders e.g. epilepsy. Vascular disorders are due to any disturbance in
the blood supply to nervous system while functional disorders are due to disturbance in nerve
impulse generation and transmission.Paralysis
Paralysis is the complete loss of function by one or more
muscle groups. It is most often caused by damage to
the central nervous system (brain or spinal cord). The
damage may be due to stroke (rupture in a blood vessel
of brain or spinal cord), blood clotting in these blood
vessels, or poison produced by polio viruses.
Patient may have weak paralysis throughout his / her
body or have paralysis in one side of body. There may
also be paralysis in the lower extremities or in all four
limbs. During a seizure attack, objects should
never be placed in a patient’s mouth as it
can result in serious injury. It is possible
that the patient will bite his/her own
tongue. 12.5.2 Epilepsy
Epilepsy is a nervous disorder in which there is abnormal
and excessive discharge of nerve impulses in brain. It causes unprovoked seizures in patient. A
seizure of epilepsy is a temporary abnormal state of brain marked by convulsions.
In younger people, epilepsy may be due to genetic or developmental causes. In people over age
40 years, brain tumours are more likely to cause epilepsy. Head trauma and central nervous
system infections may cause epilepsy at any age.
There is no known cure of epilepsy but medicines can control seizures. Patients of epilepsy have
to take medicines daily for the treatment as well as prevention of seizures. These are termed
“anticonvulsant” or “antiepileptic” drugs.
The knowledge of the composition and functioning of nervous system has helped man in the diagnosis
and treatment of nervous disorders including paralysis and epilepsy. Man has discovered the areas
of brain that receive information from different sense organs and the areas that send messages to
different effectors. Such knowledge helps a lot in identifying the malfunctioning areas of brain.