Biology 8

നാഡീ വ്യൂഹം, ഹൃദയം എന്നിവയെ കുറിച്ചുള്ള ചോദ്യങ്ങളാണ് ഇന്നത്തെ പാഠത്തിൽ

• Nervous actions initiated by Spinal cord for quick movements to avoid danger is called

                    Reflex actions

• Basic functional unit of nervous system is

                    Neuron

• Neurons carry messages in the form of

                    Electrical impulses

• Part of Neurons that carry impulses is called

                    Axon

• Part of Neurons that receive impulses is called

                    Dendrites

• Chemical which helps in transmission of impulses is called

                    Acetyle Colin

• Protective layer of Axon

                    Myelin Sheath

• Color of Myelin sheath

                    White

• Disease that causes due to loss of neuron in the brain is

                    Alzheimer's disease

• Disease that causes due to loss of neuron which receive signals from brain and spinal cord

                    Parkinson's disease

• Meningitis is affected to 

                    Meninges

• Encephalitis is an infection in brain is caused by 

                    Virus

• Disability of brain to recognize letters and words properly is known as

                    Dyslexia

• Clotting of blood in blood vessels of brain is called

                    Cerebral Thrombosis

• Bleading caused by the breakage of blood vessels of brain is called

                    Cerebral Hemorrhage

• Blockage of blood to brain for what duration will cause unconsciousness

                    5 Seconds

• Biological death means

                    Death of brain cells

• Instrument used to record changes in electrical potential of brain

                    EEG (Electro Encephalo Gram)

• CT scan stands for

                    Computerized Tomographic scan

• MRI scan stands for

                    Magnetic Resonance Imaging scan

• PET scan which used for studying the brain stands for

                    Positron Emission Tomography scan

• Study of heart and its diseases is known as

                    Cardiology

• Busiest organ of the body

                    Heart

• Size of human heart is same as the size of his

                    Fist

• Normal heart beat rate in human

                    70-72 times per minute

• Mean time required for a single cardiac cycle

                    0.8 Sec

• Circulation of blood in body is regulated by

                    Heart

• 2 upper chambers of the heart is called

                    Auricles

• 2 lower chambers of the heart is called

                    Ventricles

• Double membrane that covers heart

                    Pericardium

• Fluid filled in Pericardiam

                    Pericardial fluid

• Which part of the heart is filled with pure blood (carrying Oxygen)

                    Left chambers

• Direction of the blood flowing through the heart is

                    From Auricle to ventricle

• Number of chambers in human heart

                    4

• Chamber that receives the impure blood

                    Right Auricles

• Blood vessel that carries pure blood

                    Artery

• Blood vessel that carries impure blood (carrying CO2)

                    Vein

• Only artery that carries impure blood

                    Pulmonary artery

• Only vein that carries pure blood

                    Pulmonary vein

• Blood vessels that connects arteries and veins are called

                    Cappillaries

• Largest blood vessel (artery) in human body 

                    Aorta

• Largest blood vein in human body 

                    Inferior Venacava

• Average length of blood vessels in human

                    1 Lakh Kms

• Only organ in human body that is not affected by cancer 

                    Heart

• Heart beat in human being start when growth of embryo is

                    4 weeks

• Restless muscles in human body

                    Cardiac muscles

• Muscles that helps heart to beat in same rythm

                    Myocardial muscles

• Condition of more than 100 heart beats per minute

                    Tachycardia

• Condition of less than 60 heart beats per minute

                    Bradycardia

• First heart transplantation surgery was conducted by

                    Dr. Christian Bernad

• First heart transplantation surgery was conducted on

                    3rd December 1967

• First heart transplantation surgery was conducted at

                    Groote Shchuur Hospital, South Africa

• First heart transplantation surgery in India was conducted by

                    Dr. P Venugopal

• First heart transplantation surgery in India was conducted on

                    3rd August 1994

• First heart transplantation surgery in India was conducted at

                    AIIMS, New Delhi

• First heart transplantation surgery in Kerala was conducted by

                    Dr. Jose Chacko Periyappuram

• First heart transplantation surgery in Kerala was conducted on

                    13th May 2003

• First heart transplantation surgery in Kerala was conducted at

                    Medical trust hospital, Cochi

• First heart- lung transplantation surgery was conducted by

                    Dr. Bruce Reits (March 9, 1981)

• First heart- lung transplantation surgery in Kerala was conducted by

                    Dr. Jose Chacko Periyappuram

• First heart- lung transplantation surgery in Kerala was conducted at

                    Lisie Hospital, Ernakulam (16 January 2017)

• First artificial heart

                    Jarvik-7 (By Robert K Jarvik)

• Number of chambers in heart of Mammals, birds, Crocodile

                    4

• Number of chambers in heart of Cockroach

                    13

• Number of chambers in heart of Amphibians and Reptiles

                    3

• Number of chambers in heart of fish

                    2

• Hormone which stimulates heart beat

                    Adrenaline

• Which is known as heart of hearts

                    Pace Maker

• Which is called as the pace maker of the heart

                    SA Node (Sino Atrial node)

• First biological artificial pacemaker was developed in which country

                    Canada

• Disease which damages heart valves

                    Rheumatic Fever

• Instrument used for checking heart alignment

                    ECG ( Electro Cardio Graph)

• ECG was invented by

                    William Enthovan
                                                                                  (To be Continued...)