Chap.16 Support and movement MCQs

 

1.	Support and  movement
2.	A connective tissue consisting of chondrocytes and type II collagen is: (a) Bone                       (b) Blood (c) Cartilage                 (d) All of them	C
3.	Epiglotis is an example of cartilage: (a) Hyaline                   (b) Elastic (c) Fibro                       (d) None of them	B
4.	30% matrix of a bone is composed of organic material, chiefly: (a) Protein                    (b) Collagen (c) Both of these          (d) None of them
5.	70% matrix of a bone is composed of inorganic salts, chiefly: (a) Calcium Phosphate (b) Sodium (c) Potassium               (d) Bicarbonate	A
6.	Initially the bone is formed by: (a) Osteocyte               (b) Osteoclast (c) Osteoblast               (d) All of them	C
7.	Demineralization of bone resorption is carried by: (a) Osteoclast               (b) Osteoblast (c) Osteocyte               (d) Chondrocyte	A
8.	bones are fused with eachother in an adult. (a) 134                         (b) 124 (c) 144                         (d) 154	C
9.	Axial skeleton of human consist of skull vertebral column and: (a) Fore Arm                (b) Pelvic Girdle (c) Pectoral Girdle        (d) Ribs	D
10.	Skull of human is made up of bones: (a) 18               (b) 28 (c) 8                 (d) 6	C
11.	Muscle fibres are cylanderaced unbranch and with diameter of: (a) 10-80 m                  (b) 20-60 m (c) 10-100 m                (d) 10-60m	C
12.	Bones are held together with each other, and at joints by: (a) Nerves                    (b) Ligament (c) Tendon                   (d) Smooth Muscles	B
13.	Coccyx forms which part of vertebral column? (a) First                                    (b) Middle (c) Last                                    (d) None of them	C
14.	Which one of the following constitute the wrist of man? (a) Tarsal                     (b) Metatarsal (c) Carpals                   (d) Metacarpals	C
15.	The cranium in man consists of bones. (a) 6                             (b) 7 (c) 8                             (d) 9	C
16.	……… pairs of ribs form the rib cage in man (a) 10                           (b) 12 (c) 13                           (d) 11	B
17.	The wrist of a man consist of: (a) Carpels                   (b) Metacarpals (C) Ischium                  (d) Scapula	A
18.	Which of these is a direct source of energy for muscle contraction? (a) ATP                                    (b) Creatine Phosphate © Lactic Acid              (d) Botha and b	D
19.	Which of the following changes occur when skeletal muscle contracts (a) The A Band shorten (b) The I Band shorten. (c) The Z-Line slide farther apart (d) The actin filament contract
20.	Thin filament in myofibrils consist of (a) Actin, Tropomyosin. Troponin (b) Z-Line (c) Chloride ions (d) Sarcomere	A
21.	In the mammalian skeleton, there is a distinct synovial joint between the (a) Bones of the Cranium (b) Humerus and lina (c) Sacrum or ilium (d) Sternum and Floating Ribs	B
22.	Which of the following is a bone of axial skeleton (a) Ribs                                    (b) Shoulder Girdle (c) Pelvis                      (d) Femur	A
23.	Vertebral column includes (a) Sacrum (b) Coccyx (c) Cervical. Thoracic and Lumbar Vertebrae (d) All of these	D
24.	In mammal, the no. of cervical vertebrae are (a) No definite no (b) 7 (c) 11 (d) Varies with the size of the neck	B
25.	Brain is protected by: (a) Cranium                 (b) Skull (c) Orbits                     (d) All of these	A
26.	Which of the following causes muscle fatigue? (a) CO (b) Lactic acid accumulation (c)Fumaric Acid (d) Ethyl Alcohol	B
27.	Cardiac muscles are: (a) Voluntary               (b) Involuntary (c) Both of these          (d) None of them	B
28.	The disorder in which bones are porous and thin but bone composition normal is: (a) Osteomalacia          (b) Osteoporosis (c) Rickets                   (d) Arthritis	B
29.	The organic portion of bone matrix is important in providing all but: (A)Tensile Strength.                 b) Hardness (c) To Resist Stretch                 (d) Flexibility	D
30.	The remodeling of bone is a function of: (a) Chondrocytes and Osteocytes (b) Osteoblasts and Osteoclasts (c) Chondroblasts and Osteoclasts (d) Osteoblasts and Osteocytes	B
31.	In skeletal muscles, calcium facilities contraction by binding to (a) Tropomyosin          (b) Troponin (c) Actin                      (d) Myosin	B
32.	Which of the following statements concerning the role of Ca in the contraction of skeletal muscle is correct? (a) The mitochondria act as a store of Ca for the contractile process (b) Ca entry across the plasma membrane is important in sustaining contraction of skeletal muscle (c) A rise in intracellular Ca allows actin to interact with myosin (d) All of these	C
33.	The function of the T-tubules in muscle contraction is to: (a) Make and Store Glycogen (b) Releases Ca into the cell interior and then pick it up again (c) Make the action potential deep into the muscle cells (d) To hamper the nerve impulse	C
34.	The sites where the motor nerve impulse is transmitted from the nerve endings to the skeletal muscle cell membranes are the (a) Neuromuscular Junction     (b) Sarcomeres (c) Myofilaments                     (d) Z-dises	A
35.	Myoglobin has a special function in muscle tissue (a) It breaks down glycogen (b) It is a contractile protein (c) It holds a reserve supply of oxygen in the muscle (d) None of them	C
36.	V. low levels of calcium in the body results in: (a) Tetanus                   (b) Tetany (c) Cramps                   (d) All of these	B
37.	Writer's cramp first affects an individual by inhibiting their ability to: (a) Speak                     (b) Write (c) Walk                       (d) Move	B
38.	Osteoclasts are: (a) Mononucleated Cells          (b) Multinucleated Cells (c) Without Nucle                    (d) None of them	B
39.	Cartilage matrix consists of: (a) Type I Collagen      (b) Type II Collagen (c) Both types              (d) No Collagen	B
40.	Which of the following is an unpaired bone? (a) Parietal                   (b) Temporal (c) Malleus                   (d) Mandible	D
41.	40) How many individual bones are present in an  adult human? (a) 350 bones               (b) 206 bones (c) 650 bones               (d) 126 bones	B
42.	Bones are held together by: (a) Tendon                   (b) Ligament (c) Both of these          (d) None of these	B
43.	Spondylosis is also known as: (a) Sciatica                   (b) Sprain (c) Spinal Osteoarthritis (d) Disc Slip	C
44.	If the bone ends penetrate the skin and forms a wound, the fracture is (a) Simple Fracture                  (b) Closed Fracture (c) Compound Fracture                        (d) All of these	C
45.	Injury to a ligament is called: (a) Joint Dislocation                 (b) Sprain (c) Sciatica                               (d) Arthritis	B
46.	Muscles of the digestive system are: (a) Striated Muscles                 (b) Smooth Muscles (c) Cardiac Muscles                 (d) Skeletal Muscles	B
47.	Region of a myofibril between two successive Z-lines is called: (A)Sarcolemma.           (b) Sarcomere (c) Cross Bridge           (d) T-Tubule	B
48.	Sliding filament hypothesis was proposed in: (a) 1930                       (b) 1941 (c) 1954                       (d) 1980	C
49.	When the electrical impulses reaching a muscle fibre cease the sarcoplasmic reticulum begins to re-accumulate the calcium ions by: (a) Diffusion                (b) Active Transport (c) Both of these          (d) None of them	B
50.	Cross bridges are found on: (a) Actin                      (b) Myosin (c) Troponin                (d) Tropomyosin	B
51.	Bone formation is called: (a) Petrifaction             (b) Haematoma (c) Mineralization        (d) Ossification	C
52.	How  many carperls forms human writst? (a) 5                             (b) 8 (c) 14                           (d) 20	B