Saturday, July 18, 2015

MUSCULO SKELETAL SYSTEM ASSIGNMENT

MUSCULO SKELETAL SYSTEM
1. Coxal bone of man is formed by the fusion of                                                                                               
           1) Scapula, coracoid and clavicle                 2) Ilium, ischium and pubis
           3) Glenoid cavity, clavicle and sternum      4) Acetabulum, pubis, and ischium                    
2. Acromian process is                                                                                                                                           
          1) Flat expanded process of spine of scapula                                          
           2) Triangular bone associated with the vertebral column             
           3) Large, triangular flat bone of pectoral girdle                              
           4) A strong projecting process of the second cervical vertebra            
3. In the human skull, the bone that articulates with all other bones of cranium is                                 
           1) Temporal                2) Occipital                 3) Ethmoid                  4) sphenoid                      
4. Match the following and choose the correct combination
            List I                                                                          List II
           A) syndesmoses                                             i) Between epiphyses and diaphyses
           B) Condyloid joint                                        ii) Between humerus and glenoid cavity
           C) Synchondroses                                         iii) Between tibia and fibula
           D) Ball and socket joint                              iv) Between carpal and metacarpal of thumb
                                                                                    v) Between occipital condyles and atlas                                 A     B    C    D                                                    A    B     C    D                                                
           1)     iii     v     iv   i                                           2)    ii     iii      v     i            
           3)     iii     v     i     ii                                          4)    iii    iv      ii     i           
5. Study the following       
     Disorder                                                   Symptoms                                         Cause
     I) Osteoporosis                       Inflammation of joints                      Accumulated uric acid
     II) Tetany                               Wild contractions in muscles            Hypoparathyrodism         
    III) Myasthenia gravis          Fatigue, weakening and                    Genetic & nutritional disorders
                                                       paralysis of skeletal muscles           
    IV) Arthritis                          Inflammation of joints                        Loss of calcium due to                                                                                                               reabsorption                                    
            1) All except IV are correct                                    2) Only II is correct 
            3) All except II are correct                          4) All are correct
6.       Identify the correct statement with reference to ribs in human.        
          1) All bicephalic ribs are true ribs                2) 8th and 9th pair of ribs are floating ribs
          3) The first nine pairs of ribs are connected to sternum directly            
          4) Floating ribs are free ventrally
7.       Match the following:
          List - I                                                                     List - II
          A) Gliding Joint                                                     1) Radiocarpal Joint
          B) Condyloid joint                                                 2) Joint between tarsals
          C) Gomphoses                                                        3) Knee joint
          D) Hinge Joint                                                        4) Dentoalveolar joint
                                                                                             5) Hip joint
                A      B         C         D                                                         A         B         C           D       
          1)  1      2          3          4                                               2)       2          1          4           3
          3)  2      1          3          4                                               4)       2          1          4           5
8.       In a relaxed muscle fibre the H zone is less dense than the rest of the A band, because it consist
          1) Myosin filaments only                                      2) Both myosin and actin filaments
          3) Actin filaments only                                          4) Without actin and myosin filaments
9.    White muscle fibre is with
       1. Plenty of mitochondria                                   2. More sarcoplasmic reticulum
       3. More myoglobin                                            4. More utilization of O2 molecules
10. H-zone of a myofibril comprises
       1. Only actin                                                       2. Both actin and myosin
       3. Troponin and tropomyosin                          4. Only myosin
11Study the following:
       I. All true ribs are bicephalic.
       II. Fibrous joints are composed of fibrocartilage.
       III. Clavicle articulates with the acromion process of scapula.
       Correct ones of the above is/are
       1. Only I and III             2. Only II and III         3. Only I and II            4. I, II and III
12.  Which of the following is a paired bone in the skull?
       1. Mandible                   2. Vomer                      3. Lacrimal                  4. Sphenoid
13. During muscle contraction     
           1) Myofilaments shorten, I bands retain their length.
           2) Myofilaments not shorten, A bands shorten
          3) A bands retain their size/ length, I bands get reduced in size/ length, H bands become narrow
           4) Myofilaments do not actually shorten, A bands shorten, H bands become broad            
14. In an healthy man, blood flowing through the hepatic veins is relatively less in sugar level, compared to Hepatic portal vein due to
           1) Gluconegogenesis in liver                         2) Glycogenolysis in liver
           3) Glycogenesis in blood and Glycogenolysis in liver
          4) Glycogenesis in liver                                                                      
15. Acromion process is associated with            
            1) Scapula                 2) Clavicle                 3) Ilium                      4) Ischium    
16. In the striated muscle which is considered as functional unit of contraction.             
           1) Sarcosome              2) Sarcocyte                3) Sarcomere              4) Sarcoplasmic reticulum
17. Sarcolemma invaginates into cytoplasm and form transverse tubule (T-tubulus) at the level of Z line in  
           1) Mammals                                                      2) Non – mammalian vertebrates           
           3) Man                                                               4) All of the above
18. The smallest and longest bones of the facial region respectively                                                        
           1) Mandible, Lacrimal                                    2) Lacrimal, Mandible
           3) Lacrimal, Palatine                                       4) Mandible, Maxillae
19.   Identify the set of synarthroses in which the joint is made up of cartilage and dense irregular connective tissue respectively
         1) gomphoses, synchondroses                        2) synchondroses, sutures
         3) symphysis, gomphoses                                4) sutures, syndesmoses
20.   Identify correct set of matching
         List-I                                                                   List-II
         A) Gliding joint                                                i) carpal and metacarpal of thumb
         B) Condyloid joint                                           ii) inter tarsal joint
         C) Ball and socket joint                                  iii) occipital condyles and atlas
         D) Hinge joint                                                   iv) humerus and ulna
         E) Saddle joint                                                  v) atlas and axis
                                                                                      vi) humerus and glenoid cavity
         1) A-ii, B-v, C-vi, D-iv, E-i                              2) A-ii, B-iii, C-vi, D-iv, E-i
         3) A-ii, B-v, C-iv, D-vi, E-i                              4) A-ii, B-iii, C-vi, D-i, E-iv
21.   The tissue which resists stretching and prevents dislocation of joints is
         1) densefibrous irregular connective tissue 2) areolar tissue
         3) synovial fluid                                                4) elastic tissue
22.          Study the following statements about muscle contraction and choose the incorrect ones
1)Structural and functional unit of muscle contraction is a sarcomere
2)A sarcomere consists of three different types of  regions based on their intensity of darkness
3)During the muscle contraction myofilaments decrease in their length
4)Repeated activation of the skeletal muscles increases the rate of anaerobic glucose breakdown
23.          Assertion(A): Sphenoid bone is the keystone bone.
Reason(R ): Sphenoid bone is present in the middle of the roof of the skull and articulates with all other bones
1) A&R are true R does not explain A                  2) A & R are true R explains A
3) A is false but R is true                                        4) A is true but R is false
24.          Match the following and choose the correct answer
A)Vertebro-chondral rib                                      I)Odontoid process
B)Spine of scapula                                                  II)8th rib
C)Syndesmose                                                         III)Tibia and fibula
D)Axis                                                                       IV)Acromion process
                                                                                    V)6th rib
            A         B         C         D                                 A         B         C         D
1)        III        II          I           V                     2)        II          IV        III        I
3)        II          IV        III        V                     4)        III        I           V         IV
25.          Type of inter-carpal and inter-tarsal joints is
1)Pivot joints                  2)Gliding                         3)Condyloid                     4)Hinge joint
26.          Cori cycle is concerned with
1)Glycogenolysis                                                     2)Glycogenesis
3)Glucogenesis                                                         4)Gluconeogenesis
27. Identify the correct combinations
Bones                               Their number           Position
                                          I. Occipital               2                                        Base of cranium                       
                                          II. Parietals              2                                        Sides and roof of crianial cavity
III. Temporal                 2                                  Lateral parts of cranium
                                          IV. Sphenoid             1                                        Midline of cranial floor
1) I & II                            2) II & III                    3) I & III                           4) I, II & IV
28.    Identify the correct statements
         I. All true ribs are vertebro-chondral ribs
         II. All false ribs are floating ribs
         III. All vertebrochondral ribs are false ribs
         IV. Only first seven pairs of ribs are attached to vertebrae
         1) All                                2) I, II, IV                   3) Only IV                       4) Only III
29.    Identify the mismatch
         1) Glenoid cavity – Head of humerus             2)Acetabulum- Head of femur
         3) Acromian process –Sacrum                         4) Odontoid process – Odontoid canal
30.    Number of movable bones in skull
            1) 8                             2) 7                             3)4                                          4) 1
31.    Identify the correct  statements
         I. M-line is the middle of ‘A’ band
         II. M-line is the middle of the sarcomere
         III. H zone is darkest region of a sarcomere
         IV. Z line is the middle of sarcomere
      1.All                                 2. I, II & IV                          3.I & II only            4. III & IV only
32. Assertion (A): Troponin and tropomyosin are the regulatory proteins
      Reason(R): Masking and unmasking of active sites of actin molecules are due to troponin and  tropomyosin
          1) Both A and R are true and R is the correct explanation of A.  
          2) Both A and R are true and R is not the correct explanation of A.     
         3) A is true but R is false.    4) Both A  and R are false
33. Match
      A. Motor protein                                               I. LMM
      B. Motor end plate                                            II. HMM
      C. Cross arm                                                      III. Myosin
      D. Tail                                                                  IV. Neuromusular junction
                                                                                    V. Troponin
      1. I  II  III  V                     2. III  IV  I   II             3. IV  III  II I                           4. III  IV  II   I
34. Pick up the events that occur during contraction of a muscle
      A. Active sites are exposed                             B. Active sites are masked
      C. Ca+ bind to TnC                                            D. Ca++ detach from TnC
      E. Formation of cross bridges                       F. Heads of myosin fail to bind with active sites
      1. A, C, E, F                     2. A, C, E                    3.B, C, E                           4. A, C, F
35.    Match the following
          List – A                                               List – B
          A. Acromion process                       1. Odontoid process
          B. Axis                                                2. Movable bone of the skull
          C. Mandible                                       3. Frontal bone and parietal bone
          D. Lambdoid suture                         4. Scapula
                                                                                     5. Parietal bone and occiput
                                      A              B            C                       D                             A            B              C        D
          1)         4             1             2              3                      2)              3             2             4              1
          3)         4             1             2              5                      4)              2             3             4              5
36.    Active site on the thin filament is exposed when
          1) Troponin –I binds with tropomyosin               2) Tropomyosin is attached to calcium
          3) Troponin- C binds with thin filament
          4) Troponin- Tropomyosin complex moves away from active site
37.    If the foramen ovale does not close properly after birth, it is called
          1) Patent foramen ovale                                         2) Fossa ovalis
          3) Fenestra ovalis                                                    4) Foramen magnum
38.    Which of the following vessel contain blood with relatively more concentration of bicarbonates
          1) Internal Jugular vein                                          2) Pulmonary artery
          3) Hepatic portal vein                                             4) Coronary artery
39.    Arrange the following in correct sequence from the shoulder to the metacarpals of the forelimb
          a. Gliding joint                                                b. Ball and socket joint    
          c. Condyloid joint                                           d. Hinge joint
          1) d-c-a-b                         2) b-d-a-c                       3) a-b-d-c                     4) b-a-c-d
40.    Joint between atlas and skull is
          1) gliding                     2) pivot                        3) hinge                       4) condyloid
41.    Hyperglycemic condition in blood is due to
          a) low levels of glucagon                              b) low levels of insulin
          c) low levels of adrenocorticoids                d) high levels of glucocorticoids
          1) b and d                    2) a, b and c                3) b and c                    4) a and c
42.    Read the following statements about the vertebrae of humans and pick out the correct statements.
          I)   Thoracic vertebrae consist of articular facets for capitulum and tuberculum of ribs.
          II)  Sacrum is a triangular bone formed by the fusion of three sacral vertebrae.
          III) Odontoid process of first vertebrae fits into the odontoid canal of second vertebra.
          IV) The largest and strongest free vertebrae of human vertebral column provide surface for the  attachment of the large back muscles.
          1) II & III                      2) I, II, III                      3) I & IV                      4) II, III & IV
43.    Mitochondria are few but amount of sarcoplasmic reticulum is more in
          1) White muscle fibres                                   2) Red muscle fibres
            3) Aerobic muscles                                      4) Both white and red muscle fibres



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