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Locomotion and movement

155 Questions Start Allen Test
All Exams Allen
Q101 Allen INVOLUTARY, CARDIAC MUSCLES, DISORDERS MCQ
Functionally, cardiac muscles are similar to-
A.
Unstriped muscles
B.
Striped muscles
C.
Striped & Unstriped muscles
D.
None
Q102 Allen INVOLUTARY, CARDIAC MUSCLES, DISORDERS MCQ
Mitochondria in cardiac muscles :-
A.
More than other muscles fibres
B.
Less than other muscles fibres
C.
Equal than other muscles fibres
D.
None
Q103 Allen INVOLUTARY, CARDIAC MUSCLES, DISORDERS MCQ
Unstriped muscle are also known as :-
A.
Visceral
B.
Smooth
C.
Involuntary
D.
All
Q104 Allen INVOLUTARY, CARDIAC MUSCLES, DISORDERS MCQ
Cardiac muscles Fibres :-
A.
Involuntary
B.
Non-fatigue
C.
Striated like
D.
All
Q105 Allen INVOLUTARY, CARDIAC MUSCLES, DISORDERS MCQ
Smooth muscles fibres are :-
A.
Spindle shaped
B.
Unbranched & Involuntary
C.
Uninucleated
D.
All of above
Q106 Allen INVOLUTARY, CARDIAC MUSCLES, DISORDERS MCQ
Which filamentous proteins are found in muscle?
A.
Leucine & myosin protein
B.
Actin & myosin protein
C.
Actin & leucine protein
D.
Actin protein only
Q107 Allen INVOLUTARY, CARDIAC MUSCLES, DISORDERS MCQ
I. Sarcoplasmic reticulum are abundant. II. Myoglobin content is high. III. Sarcoplasmic reticulum are moderate. IV. Aerobic muscles. V. Depends on anaerobic respiration for energy. VI. Less myoglobin content. Select the option with correct statements for red muscle.
A.
I, II and IV
B.
I, II and III
C.
II, III and IV
D.
II and IV
Q108 Allen PRACTICE TEST MCQ
Stimulation of a muscle fiber by a motor neuron occurs at :
A.
the neuromuscular junction
B.
the transverse tubules
C.
the myofibril
D.
the sacroplasmic reticulum
Q109 Allen PRACTICE TEST MCQ
Sliding filament theory can be best explained as :-
A.
Actin and Myosin filaments shorten and slide pass each other
B.
Actin and Myosin filaments do not shorten but rather slide pass each other
C.
When myofilaments slide pass each other, Myosin filaments shorten while Actin filaments do not shorten
D.
When myofilaments slide pass each other Actin filaments shorten while Myosin filament do not shorten
Q110 Allen PRACTICE TEST MCQ
Lack of relaxation between successive stimuli in sustained muscle contraction is known as:-
A.
Spasm
B.
Fatigue
C.
Tetany
D.
Tonus
Q111 Allen PRACTICE TEST MCQ
Smooth muscles are :-
A.
Involuntary, cylindrical, striated
B.
Voluntary, spindleā€”shaped, uninucleate
C.
Involuntary, fusiform, non-striated
D.
Voluntary, multinucleate, cylindrical
Q112 Allen PRACTICE TEST MCQ
Name the ion responsible for unmasking of active sites for myosin for cross-bridge activity during muscle contraction.
A.
Sodium
B.
Potassium
C.
Calcium
D.
Magnesium
Q113 Allen PRACTICE TEST MCQ
Select the correct match :- A B C
A.
A-Skeletal muscles ā†’ biceps, striated muscles, involuntary
B.
B-Smooth muscles ā†’ walls of stomach, voluntary
C.
C-Cardiac muscles ā†’ heart, dorsal wall of aorta, voluntary
D.
A-Skeletal muscle ā†’ biceps, striated, voluntary
Q114 Allen PRACTICE TEST MCQ
Calcium is important in skeletal muscle contraction because it :-
A.
binds to troponin to remove the masking of active sites on actin for myosin.
B.
activates the myosin ATPase by binding to it
C.
detaches the myosin head from the actin filament.
D.
prevents the formation of bonds between the myosin cross bridges and the actin filament
Q115 Allen PRACTICE TEST MCQ
Which of the following diseases is an autoimmune disorder?
A.
Myasthenia gravis
B.
Arthritis
C.
Osteoporosis
D.
Gout
Q116 Allen PRACTICE TEST MCQ
Which of the following muscular disorders is inherited?
A.
Tetany
B.
Muscular dystrophy
C.
Myasthenia gravis
D.
Botulism
Q117 Allen PRACTICE TEST MCQ
Chronic autoimmune disorder affecting neuro muscular junction leading to fatigue, weakening and paralysis of skeletal muscle is called as :-
A.
Arthritis
B.
Muscular dystrophy
C.
Myasthenia gravis
D.
Gout
Q118 Allen PRACTICE TEST Match the Columns
Match the following columns and select the correct option. Match Column - I with Column - II:
Column-IColumn-II
(A)Gout
(B)Osteoporosis
(C)Tetany
(D)Muscular dystrophy
(I)Decreased levels of estrogen
(II)Low $Ca^{++}$ ions in the blood
(III)Accumulation of uric acid crystals
(IV)Auto immune disorder
(V)Genetic disorder
A.
(A)-(II), (B)-(I), (C)-(III), (D)-(IV)
B.
(A)-(III), (B)-(I), (C)-(II), (D)-(V)
C.
(A)-(IV), (B)-(V), (C)-(I), (D)-(II)
D.
(A)-(I), (B)-(II), (C)-(III), (D)-(IV)
Q119 Allen PRACTICE TEST MCQ
Which of the following statements wrongly represents the nature of smooth muscle?
A.
These muscle have no striations
B.
They are involuntary muscles
C.
Communication among the cells is performed by intercalated discs
D.
These muscles are present in the wall of blood vessels
Q120 Allen PRACTICE TEST MCQ
During muscular contraction which of the following events occur ?
(a) 'H' zone disappears
(b) 'A' band widens
(c) 'I' band reduces in width
(d) Myosin hydrolyzes ATP, releasing the ADP and Pi
(e) Z-lines attached to actins are pulled inwards
Choose the correct answer from the options given below.
A.
(a), (c), (d), (e) only
B.
(a), (b), (c), (d) only
C.
(b), (c), (d), (e) only
D.
(b), (d), (e), (a) only
Q121 Allen PRACTICE TEST MCQ
Which of the following is a correct match for disease and its symptoms ?
A.
Tetany - high CaĀ²+ level causing rapid spasms.
B.
Myasthenia gravis - Genetic disorder resulting in weakening and paralysis of skeletal muscle
C.
Muscular dystrophy - An auto immune disorder causing progressive degeneration of skeletal muscle
D.
Arthritis - Inflammed joints
Q122 Allen PRACTICE TEST MCQ
According to the sliding filament theory:
A.
Actin and myosin filaments slide over each other to increase the length of the sarcomere.
B.
Length of A-band does not change.
C.
I-band increases in length
D.
The actin filaments slide away from A-band resulting in shortening of sarcomere.
Q123 Allen PRACTICE TEST MCQ
Which of the following statements are correct regarding skeletal muscle ?
(A) Muscle bundles are held together by collagenous connective tissue layer called fascicle.
(B) Sarcoplasmic reticulum of muscle fibre is a store house of calcium ions.
(C) Striated appearance of skeletal muscle fibre is due to distribution pattern of actin and myosin proteins.
(D) M line is considered as functional unit of contraction called sarcomere.
Choose the most appropriate answer from the options given below:
A.
B and C only
B.
A, C and D only
C.
C and D only
D.
A, B and C only
Q124 Allen PRACTICE TEST MCQ
Three types of muscles are given as a, b and c. Identify the correct matching pair along with their location in human body :- (a) (b) (c) Name of muscle/location
A.
a) Smooth - Toes, b) Skeletal - Legs, c) Cardiac - Heart
B.
a) Skeletal - Triceps, b) Smooth - Stomach, c) Cardiac - Heart
C.
a) Skeletal - Biceps, b) Involuntary - Intestine, c) Smooth - Heart
D.
a) Involuntary - Nose tip, b) Skeletal - Bone, c) Cardiac - Heart
Q125 Allen PRACTICE TEST MCQ
Which of the following are Autoimmune disorders?
(A) Myasthenia gravis.
(B) Rheumatoid arthritis.
(C) Gout
(D) Muscular dystrophy.
(E) Systemic Lupus Erythematosus (SLE).
Choose the most appropriate answer from the options given below :-
A.
A, B & D only
B.
A, B & E only
C.
B, C & E only
D.
C, D & E only