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Locomotion And Movement Mcq
Quiz 8
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Q.1
Spinal cord passes through ... ... [ DPMT 2002 ]
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a) Foramen of monro
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b) Iter
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c) Obturator foramen
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d) Foramen magnum
Explanation
Foramen magnum the large opening in the base of the skull forming the passage from the cranial cavity to the spinal canal. Answer : (d)
Q.2
Coxal pelvic girdle is formed by fusion of ... ...[ kerala 2011]
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a) Ilium, ischium and pubis
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b) Scapula and clavicle
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c) Ilium and scapula
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d) Ilium, scapula and ischium
Explanation
Answer : (a)
Q.3
Haversian system is diagnostic feature of .... .... [ JIPMER 2004]
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a) Avian bones
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b) Reptilian bones
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c) Mammalian bones
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d) Bone of all animals
Explanation
Haversian system : A haversian canal, its lamellae and osteocytes form a haversian system. Haversian canals are found in bone matrix of long bone, like humerus of mammals. Haversian canals contain artery and veins, osteoblasts in areolar tissue, nerves and lymph. Answer : (c)
Q.4
Which one is a bone of skull? ... .. [ CBSE 2000 ]
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a) Atlas
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b) Femur
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c) Tibia
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d) Pterygoid
Explanation
The pterygoid is a paired bone forming part of the palate of many vertebrates, behind the palatine bones. In humans it becomes the pterygoid processes of the sphenoid bone Answer : (d)
Q.5
In resting stage, binding sites for myosin on actin filaments are masked by ... .... [ HPPMT 2012]
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a) Troponin
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b) Light meromyosin
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c) Heavy meromyosin
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d) Calcium ions
Explanation
In the resting state a sub-unit of Troponin (Tn-T), masks the active binding sites on the thin filaments for myosin. Answer : (a)
Q.6
The functional unit of contractile system of a striated muscle is .... ... [ JKCMEE 2004]
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a) Sarcomere
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b) Z- band
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c) Cross bridge
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d) Myofibril
Explanation
A sarcomere is the functional unit of striated muscle. It is the repeating unit between two Z lines. The most popular model that describes muscular contraction is called the sliding filament theory. In this theory, active force is generated as actin filaments slide past the myosin filaments, resulting in contraction of an individual sarcomere Answer : (a)
Q.7
Which is correctly matched? ... ... [ CBSE 2005]
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a) Gliding joint-Between zygapophyses of successive vertebrae
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b)Hinge joint - Between vertebrae
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c) Cartilaginous joint - Skull bones
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d) Fibrous joint - Between phalanges
Explanation
The facet joints, (or zygapophysial joints, zygapophyseal, apophyseal, or Z-joints) are a set of synovial, plane joints between the articular processes of two adjacent vertebrae. ( option a is correct and Option b NOT correct) Fibrous joint that is only found in the skull. (option c is NOT correct) There are two sets (except in the thumb) which has one joint: "proximal interphalangeal joints" (PIJ or PIP), those between the first (also called proximal) and second (intermediate) phalanges. "distal interphalangeal joints" (DIJ or DIP), those betweenthe second (intermediate) and third (distal)phalanges. (option d is NOT correct) Answer : (a)
Q.8
Clavicle articulates with ... ... of scapula [ DPMT 2011]
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a) Ball and socket joint
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b) Acetabulum cavity
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c) Acromion process
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d) Glenoid cavity
Explanation
Articulation of clavicle Clavicle articulates Medially with the manubrium of the Sternum at the Sternoclavicular joint. Laterally with the Scapula at the Acromioclavicular joint. Inferiorly with 1St rid at the Costoclavicular joint Answer : (c)
Q.9
Tail vertebrae of birds form ... ... [ Wardha 2002]
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a) Wish bone
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b) Chevron bone
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c) Urostyle
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d) Pygostyle
Explanation
Pygostyle in a bird a triangular plate formed of the fused caudal vertebrae, typically supporting the tail feathers. The wishbone is an oddly-shaped forked bone that's the fusion of two clavicles called the furcula. It's located right between the neck and breast of a bird. A chevron is one of a series of bones on the ventral (under) side of the tail in many reptiles, dinosaurs and some mammals such as kangaroos and manatees. Urostyle a long unsegmented bone that represents a number of fused vertebrae and forms the posterior part of the vertebral column of frogs and toads Answer : (d)
Q.10
Symphysis consists of .... ... [ AFMC 2012]
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a) Hyaline cartilage
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b) Elastic cartilage
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c) Fibrocartilage
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d) Synovial fluid
Explanation
At cartilaginous joints, bones are united by hyaline cartilage to form a synchondrosis or byfibrocartilage to form a symphysis. Answer : (c)
Q.11
Fabellae (bones) are associated with .... ...[ MPPMT 2002]
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a) Elbow joint
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b) Knee joint
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c) Neck joint
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d) Angular joint
Explanation
The fabella is a sesamoid bone in the posterolateral capsule of the human knee joint. Answer : (b)
Q.12
Standing on tip toe is example of .... ... [ DPMT 2009]
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a) Elevation
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b) Flexion
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c) Extension
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d) Retraction
Explanation
Each of the synovial joints gives the anatomical structures the capability to produce specific types of movements. Standing on tiptoe is an example of hinge joint at the ankle that goes into an extension. Answer : (a)
Q.13
Skull of Rabbit/Man is .... ... [ kerala 2010]
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a) Monocondylic
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b) Dicondylic
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c) Tricondylic
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d) Tetracondylic
Explanation
mammals have dicondylic skull. Dicondylic Skull has ‘two’ occipital condyles, with the help of these two condyles skull is connected by first vertebra of vertebral column Answer : (b)
Q.14
Feeling of fatigue after running fast for some time is due to .... .... [ CPMT 1996 ]
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a) Loss of energy
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b) Accumulation of lactic acid in muscles
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c) Formation of succinic acid
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d) Formation of biuret crystals
Explanation
Lactic Acid Buildup Causes Muscle Fatigue and Soreness. Answer : (b)
Q.15
A cricket player is chasing a ball. Which group of muscles is contributing in this movement .... .... [ AIIMS 2006]
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a) Femur, Malleus, Tibia, Metatarsals
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b) Pelvis, Ulna, Patella, Tarsals
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c) Sternum, Femur, Tibia, Fibula
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d) Tarsals, Femur, Metatarsals, Tibia
Explanation
Tarsals, Femur, Metatarsals, Tibia are parts of leg Answer : (d)
Q.16
ere are cervical vertebrae found?
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a) Thorax region
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b) Lumbar region
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c) Throat
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d) Tail
Explanation
Answer:(c)
Q.17
Which are involved in muscle contraction? .... ..... [ JIPMER 1998]
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a) Ca2+ and Mg2+
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b) Ca2+ and Na+
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c) Na+ and K+
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d) Mg2+ and K+
Explanation
When acetylcholine reaches receptors on the membranes of muscle fibers, membrane channels open and the process that contracts a relaxed muscle fibers begins: Open channels allow an influx of sodium ions into the cytoplasm of the muscle fiber. The sodium influx also sends a message within the muscle fiber to trigger the release of stored calcium ions. The calcium ions diffuse into the muscle fiber. The relationship between the chains of proteins within the muscle cells changes, leading to the contraction. Calcium binds to troponin, causing the troponin to change shape and remove the tropomyosin from the binding sites. Magnesium acts as a natural calcium blocker to help muscles relax Answer : (b)
Q.18
Which one is required for muscle contraction and nerve impulse transmission? ... .. [ BHU 2008]
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a) Ca2+
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b) Mg2+
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c) Fe2+
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d) Both a and b
Explanation
When acetylcholine reaches receptors on the membranes of muscle fibers, membrane channels open and the process that contracts a relaxed muscle fibers begins: Open channels allow an influx of sodium ions into the cytoplasm of the muscle fiber. The sodium influx also sends a message within the muscle fiber to trigger the release of stored calcium ions. The calcium ions diffuse into the muscle fiber. The relationship between the chains of proteins within the muscle cells changes, leading to the contraction. Calcium binds to troponin, causing the troponin to change shape and remove the tropomyosin from the binding sites. Answer : (a)
Q.19
Pectoral girdle is made of ... ... [ AFMC 2010]
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a) Two innominate
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b) Two clavicles and two scapulae
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c) One clavicle and one scapula
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d) Two clavicles and one scapula
Explanation
4 bones in the shoulder girdle (clavicle and scapula each side) Answer : (b)
Q.20
EDTA injected into muscles combines with Ca+ and ... ... [ Pb.PMT 2000 ]
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a) Stops contraction
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b) Causes contraction
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c) Slows down contraction
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d) None of the
Explanation
E.D.T.A (Ethylane diamine tetra acetic acid) injected inside muscle combined with Ca+ and stops contraction. Answer : (a)
Q.21
Which one has oxygen storing capacity ... ... [ W.B. 2011]
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a) Myoglobin
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b) Myosin
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c) Actin
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d) Fibrin
Explanation
Myoglobin (symbol Mb or MB) is an iron- and oxygen-binding protein found in the muscle tissue of vertebrates in general and in almost all mammals. It is related to hemoglobin, which is the iron- and oxygen-binding protein in blood, specifically in the red blood cells. Answer : (a)
Q.22
Pick up the correct match ... ....[Har PMT 2002]
Sternum
14
Ribs
1
Pelvis
24
Face
3
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a) a - ii, b - iii, c - iv, d - i
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b) a - ii, b - iv, c - i, d - iii
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c) a - ii, b - iii, c - i, d - iv
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d) a-ii, b - i, c -iii, d - iv
Explanation
Bones of the Appendicular skeleton: 4 bones in the shoulder girdle (clavicle and scapula each side) 6 bones in the arm and forearm (humerus,ulna and radius) 54 bones in the hands (carpals 16, metacarpals 10, phalanges 28) 2 pelvis bones (consists of 3 sections, ilium, ischium, and pubis). 8 bones in the legs (femur, tibia, patella and fibula) 52 bones in the feet (tarsals 14, metatarsals10 , phalanges 28) Some books also mention 4sesamoid bones in hand and leg Bones of the Axial Skeleton The Axial Skeleton is the central core of the human body housing and protecting it’s vital organs. The axial skeleton consists of 80 bones: 29 bones in the head - (8 cranial and 14 facial bones) and then also 7 accociated bones (6 auditory ossicles and the Hyoid Bone) 25 bones of the thorax - (the sternum and 24 ribs) 26 bones in the vertebral column (24 vertebrae, the sacrum and the coccyx) Answer : (a)
Q.23
What is the location of troponin in the process of muscle contraction ... ... [ Guj CET 2011]
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a) Attached to myosin filament
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b) Attached to tropomyosin
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c) Attached to myosin cross-bridges
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d) Attached to T-tubule
Explanation
Troponin is attached to the protein tropomyosin and lies within the groove between actin filaments in muscle tissue. In a relaxed muscle, tropomyosin blocks the attachment site for the myosin crossbridge, thus preventing contraction. Answer : (b)
Q.24
Vertebro-arterial canal occurs in .... ... [ MPPMT 1990]
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a) Cervical vertebrae
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b)Lumbar vertebrae
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c) Thoracic vertebrae
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d) Sacral vertebrae
Explanation
Answer : (a)
Q.25
Example of pivot joint is ... ... [ DPMT 2010]
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a) Ankle joint
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b) upper end of radius and ulna
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c) joint of toe
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d) None of these
Explanation
A pivot joint is a type of synovial joint that rotates joints between the radius and ulna that rotate fore arm.is the pivot joint Answer : (b)
Q.26
A joint made for power is ... ...[ Guj CET 2007]
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a) knee joint
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b) Suture in cranium
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c) Joint between vertebrae
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d) Mandibular joint
Explanation
The mandible, lower jaw or jawbone is the largest, strongest and lowest bone in the face. It forms the lower jaw and holds the lower teeth in place. The mandible sits beneath the maxilla. Used for used for chewing Answer : (d)
Q.27
Number of floating ribs in human body is ... ... [ JIPMER 2000]
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a) 6 pairs
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b) 5 pairs
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c) 3 pairs
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d) 2 pairs
Explanation
The phrase floating rib refers to the two lowermost, the eleventh and twelfth, rib pairs Answer : (d)
Q.28
Stimulation of a muscle fiber by a motor neuron occurs at : …[AIPMT 2014]
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a) the myofibril
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b) the sacroplasmic reticulum
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c) the neuromuscular junction
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d) the transverse tubules
Explanation
Stimulation of a muscle fiber by a motor neuron occurs at the neuromuscular junction Answer:(c)
Q.29
The solid linear cytoskeletal elements having a diameter of 6 nm and made up of a single type of monomer are known as : …[AIPMT 2014]
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a) Intermediate filaments
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b) Lamins
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c) Microtubules
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d) Microfilaments
Explanation
microfilaments are the narrowest, have a diameter of about 6 nm, and are made of two intertwined strands of a globular protein called actin. For this reason, microfilaments are also known as actin filaments. Answer:(d)
Q.30
Select the correct matching of the type of the joint with the example in human skeletal system:… [AIPMT 2014]
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a) Type of joint: Hinge; Example: joint between humerus and pectoral girdle
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b) Type of joint: Gliding; Example: joint between carpals
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c) Type of joint: Cartilaginous; Example: joint between frontal and pariental
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d) Type of joint: Pivot; Example: joint between third and fourth cervical vertebrae
Explanation
Acromioclavicular Joint and Sternoclavicular Joint Example joint between humerus and pectoral girdle (option a is NOT correct) Gliding joint, Example: joint between carpals ( option b correct) Fibrous joint Example joint between frontal and pariental ( option c is NOT correct) Facet joints Example: joint between third and fourth cervical vertebrae ( option d is NOT correct) Answer:(b)
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