Topic-7
Science
Biology
1. How many total bones are there in the Skull of human beings?-29
2. How many facial bones are there in the Skull of human beings?-14
3. How many ear ossicles are there in the Skull of human beings?- 6
4. How many bones are there in the Cervical of human beings?- 7
5. How many bones are there in chest of human beings ?- Sternum-1 , Ribs -24 ( 12 Pairs )
6. How many bones are there in the shoulders of human beings ?- 4
7. How many bones are there in the wrists of human beings ?-16
8. How many bones of thigh of human beings (Femur) ?- 2
9. How many bones are there in the knee of human beings (Patella)?- 2
10. List of Types of Joints :
I. Bones of Skull – Immovable
II. Slightly movable – Public Bones of Pelvic Girdle
III. Hinge – Ankle, Knee, Elbow.
IV. Ball and Socket – Shoulder and Hip
11. What is the joint of muscle and bones called ?- Tendon
12. Which muscle join bone with bone ?-Ligament
List of Diseases of Skeletal System (13 to 16 )
13. In which disease there is the hard tissue deposits over articular cartilage along with higher secretion synovial fluid causing pain and stiffness ? Rheumatoid Arthritis
14. In which kind of disease there is tearing of articular cartilage and development of bony lumps at places causing pain , stiffness and permanent bending ?-Osteoarthritis
15. In which disease there is loss of bone density due to excessive absorption of calcium and phosphrous from the bone ?- Osteoporosis
16. Which disease is the hereditary disease in which the bone gets abnormally dense and the common occurrence of fractures of affected bone ?- Osteopetrosis
17. What are the sponge bones of the birds filled with the air called ?- Pneumatic Bones
18. What is the state of the body stiffening called after death ?- Rigor Mortis
19. What are the reasons of the Chronic Fatigue ?
· The inability of a muscle to contract due to a depletion of its chemicals.
· Accumulation of the Lactic Acid .
20. How many types of muscles are there in the human body ?-639
21. How many types of muscles of contraction are there in the human body ?= Three
· Striated
· Un-striated
· Cardiac
22. Which types of muscles are called voluntary muscles ?- Striated Muscles like in Limbs , Tongue and Pharynx
23. Which types of muscles are called involuntary muscles ?- Un-Striated Muscles like in Urinary Bladder , In walls of large blood vessels and Alimentary Canal.
24. Cardiac Muscles are found in which part of the human body ?- Heart
25. Which kind of material is removed from the human body by the Excretory System ?- Nitrogenous
26. What is the excretory organ in the Amoeba ?- Contractile Vacuole
27. What is the excretory organ in the Tapeworm ?- Flame Cells /Solenocytes
28. What is the excretory organ in the Earthworm?- Nephridia
29. Which animals excrete nitrogenous waste in form of Ammonia ?- Amoeba , Hydra, Prawn, Freshwater Fishes, Frog’s Tadpole
30. Which animals excrete nitrogenous waste in form of Urea ?- Mammal , Frogs , Toads, Amphibians , Cartilaginous Fishes
31. Which animals excrete nitrogenous waste in form of Uric Acid?- Reptiles , Snakes , Lizards , Crocodiles and Birds
32. Human Excretory System include :
I. Kidneys – Two
II. Ureters- Two
III. Urinary Bladder- One
IV. Urethra- One
33. What is the colours of kidneys in our body ?-Chocolate Brown
34. Which kidney is placed little higher in our body?- Left Kidney
35. What is the functional unit of Kidney ? –Nephron
36. What are the constituents of Nephrons ?- Bowman’s Capsule and Renal Tube
37. Which organ of the excretory system brings urine down ?-Ureters
38. What is the holding capacity of Urinary Bladder ?- 0.5-1.0 Liters
39. In which class of animals Urinary Bladder is absent ?- Birds
40. In both reptiles and birds , ureters and rectum opens into a common sac called ---- Cloca
41. What is the function of Urethra in Female ?- Carrying Urine
42. What is the function of Urethra in Male ? – Carrying Urine and Spermatic Fluids
43 Due to which pigment the colour of urine is yellow pale ?- Urochrome
44. What is the nature of Urine ?- Acidic
45. What is the pH of Urine ?-6.0
46. Chemical Composition of Urine
Water -95-96%
Urea- 2 %
Other Substances – 2-3% Uric Acid , Creatinine etc.
47. Bacteria converts urea into which form ?- Ammonia
48. What is the process of removing urea artificially from human body is called ?- Haemodialysis
49. What are Kidney Stones ?- Crystals of Calcium Oxalate
50. What are the two parts of the Nervous System ?- Central And Peripheral Nervous System.