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Human nervous system

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                 Human Nervous System 1) Central Nervous System(C.N.S). 2) Peripheral Nervous System(P.N.S) 3) Autonomic Nervous System(A.N.S) C.N.S- Brain and spinal cord P.N.S- Cranial Nerves and spinal nerves. A.N.S- Ganglion cells that help involuntary action. Brain •It is a delicate organ present in a bony box called Cranium. •Cranium protects the brain from injury and mechanical shocks. •Brain has three membranes: Arachnoid, Pia mater and dura mater. •The fluid-filled b/w the membranes is Cerebrospinal Fluid. • Brain has two hemispheres Called Cerebral hemispheres joined by Corpus Callosum The brain has classified into three parts 1) Forebrain 2) Midbrain  3) Hindbrain Forebrain three parts • Hypothalamus  • Cerebrum • Olfactory Cerebrum- It is the centre of thinking, memory, intelligence, Learning, reasoning and creativity etc. Olfactory- It has a centre of smell. Midbrain It is a centre of visual (seeing) and auditory (liste...

Control and Coordinates

Movement   The Movement is defined as the body parts of the plants moving towards the stimulus. Stimulus Any external factor like light, water, chemical etc. that plant parts responds to. • Plant shows movement only, no locomotion. Phototropism- Photo+tropism= light When a plant's parts show a response toward the light is called Phototropism. Positive Phototropism The stem shows positive phototropism or grows above the soil in the direction of the sun. Negative Phototropism Roots show negative phototropism as they grow below the soil away from the sun. Plant movement 1- Trophism 2- Nastic   1- Trophism  a) Phototropism- Light Ex- Sunflower b) Hydrotropism- water Ex- Roots tve hydrotropism stems ve hydrotropism c) Geotropism- Gravity Ex- Roots Geotrophism Roots ve Geotropism d) Chemotropism- chemical Ex Movement of pollen tubes towards the ovary. e) Thigmotopism- touch Ex- Tendril of money plant 2- Nastic a) Photonastic- light Ex (i)Dandelion (Daylight) (Morning flowe...

Structure of nephron

                 Structure of nephron 1) Glorerucless 2) Bow Man's capsule 3) Proximal Convoculated tubeless (PCT) 4) Loop of Henle a) Ascending b) Descending 5) Distil C.T 6) Collective tube The function of nephron/urine concentration 1) Ultrafiltration 2) Selective Reabsorption 3) Secretion 1) Ultrafiltration The glomerulus filters the deoxygenated blood into oxygenated blood and transports it back out of the kidney. 2) Selective Reabsorption The different parts of the nephron absorb different materials. P.C.T.- 80% water, glucose, salt Ascending loop of Henle- Urine Vasorecta- Glucose, amino acids D.C.T- Facilitated absorption of 20%water with the help of hormones. 3) Secretion Excess waste is secreted out of getting the kidney. 4)Micturition  The process of throwing urine out of the body through the Urethra is called micturition. This action is Controlled by Lorain. Urine • The human urine is yellow due to Bilruvin secreted by the li...

Ch A Triumph of surgery Q/A

Q what kind of a person do you think the narrator is a veterinary surgeon? Would you say he is Artful as well as full of common sense? Ans The narrator seems to be a practical perum with lots of common sense. He is helpful to others as well. The way he treats tricky without a single medicine tells VS about his common sense more over the way he shares eggs, wines & brandy sending miss Pumphrey with his staff, and tells VS about his practised mindset. Q Do you think. I was happy to go home. what do you think will happen now Ans The way the trick jumps in its owner's lap and away shows affection towards the owner and indicates that tricky is happy to go home. Either Mrs Humphrey will want her ways & more trick on agile & healthy dogs or she may go back to her old ways of spoiling trick habits. Q Do you think this is a real-life episode or more fiction? Or fiction or a mixture of both. Ans This can be anything. This can be a real-life story fiction or a mixture of both. Q T...

Sentences Recording

Rearrange the following words and phrases to form meaningful sentences, first has been done for you. 1) extremely/a/Gries/it/is/that/matter/unkindly/ animals/are exploited. Ans it is an extremely a matter of grief that animals are exploited unlikely. 2)killed/theyare/beaten/chained/and/merchilily/trained Ans they are beaten chained trained and killed merchilily. 3) their/need/but/hears/and pays/ nobody/to cry. Ans but nobody hears and to their cries. 4)Sand/auxiliaries/animals /necessary/are hour/and survival/ for you Ans animals are our friends, auxiliaries and necessary for our survival Q5 animals/matters/one visions /world should be/welfare Ans our vision should be a world animal welfare matter.

Letter to Editor

You are Vikrant, a student of class 10th resident of Mumbai. You are interested in learning french during your summer vacations. write a letter to the director of languages learning Institute Colaba, asking him about the various courses offered by the institute for Franch learners during summer vacation. A-49, Colaba Mumbai 10th March 2022 The Director Languages Learning institute Colaba, Mumbai Subject: Enquiry regarding French classes in the summer vacation Sir,        I am a student of class 10th resident in South Mumbai. I came across your advertisement in today's daily newspaper. I am interested in learning French during my summer vacations and would like to know about the beginner's course offered by you in the months of April - June. Kindly send me the detailed information about the course along with the brochure of your Institute. You can send the information by post or at my email address Vicky xx 97@gmail.com. Also, send me the looking forward to your corre...

Letter to Editor

The influence of friends can have both positive and negative impacts on the students. write a letter to the editor of a national daily in 100-120 words. discussing how we can make it more positive and productive you are Arun Arun 24 Mall Road, Chennai. 24 Mall Chennai 12 April, 22 The Editor The times of India New Delhi Subject: Influence of friends Sir,        Through the columns of your newspaper. I wish to draw the attention of the readers towards the increasing influence of friends on the life of youngsters there days. We wear a lot of youngsters referring to "Peer Pressure" that affecting Friendship these Days friendship is a valuable relationship. It establishes a strong bond between two human beings. nowadays stress has become a part, a good friend helps to reduce stress levels. A good friend will also be there. whenever come is in trouble. Contrary, the influence of a friend can be disastrous. one can develop vices like drinking betting etc. To be one among h...