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251.

Vertabra prominens is present withA. First thoracic vetabraeB. First lumber vertebraeC. Seventh cervical vertebraeD. First cervical vertabrae

Answer» Correct Answer - C
252.

Which one of the following is a viral disease that weakens the muscles ?A. AtrophyB. PoliomylitisC. DystrophyD. Muscular hypertrophy

Answer» Correct Answer - B
B. poliomyelitis
253.

Cori cycle involvesA. LiverB. MusclesC. Liver and Muscles bothD. None of these

Answer» Correct Answer - C
254.

cori cycle involvesA. LiverB. MusclesC. Liver and muscles bothD. None the these

Answer» Correct Answer - C
255.

To one of the lateral surface of humerus, a muscle is ateached calledA. Biceps brachiiB. DeltoidiusC. SertoriusD. Messeter

Answer» Correct Answer - B
256.

Which one of the following is a viral disease that weakens the muscles ?A. AtrophyB. PoliomuyelitisC. DystrophyD. Muscular hypertrophy

Answer» Correct Answer - B
257.

Amoeba shows movement with help ofA. PseudopodiaB. FlagellaC. CiliaD. Muscle

Answer» Correct Answer - A
258.

Cyclosis is a characteristic of plant cells such as Amoeba and vertebrate WBCs. This movement is due toA. Sliding microtubuleB. Cytoplasmic streamingC. Beating of ciliaD. Podia formation

Answer» Correct Answer - B
259.

ATP provides energy of muscle contraction by allowing forA. Cross-bridge attachment of myosin to actinB. Cross-bridge datachment of myosin from actinC. An actin potential formation in the muscle cellD. Release of `Ca^(+)` from sarcoplasmic reticulum

Answer» Correct Answer - B
260.

Contractile unit of muscle is part of myosfibril betweenA. X-line and I-bandB. Z-line and Z-lineC. Z- line and A-bandD. A-band and I- band

Answer» Correct Answer - B
261.

Which of the following statements about the striated muscles is ture ? In the centre of each I-Band is an elastic fiber(Z-line ) which bisects it M-line is a fibrous memebrane in the middle of A bonds Thin filament are firmly attached to the M-line A sarcomere comprises one full A - bondsA. iiB. ivC. `i and iii`D. `i and ii`

Answer» Correct Answer - D
262.

Which is correct statement for white muscle fibreA. It contains low amount of haemoglobin and mitochondriaB. It contains higher amount of myoglobinC. It contains low amount of myoglobin and mitochondriaD. It possesses only actin type of protein.

Answer» Correct Answer - C
263.

A bundle of muscle fibre is calledA. FasciaB. Glenoid cavityC. myocyteD. Fasciculus

Answer» Correct Answer - D
264.

A bone is connected to another byA. TendonB. LiagamentC. CartilageD. Muscle

Answer» Correct Answer - B
A bone is connected to another by ligament.
265.

Joint where synovial capsule and synovial fluid are lacking isA. Carpal-carpelB. Public symphysis in femalsC. Finger and toes in malesD. Femur and pelvis in femals

Answer» Correct Answer - B
Joint where synovial capsule and synovial fluid and lacking is public symphysis in females.
266.

Which of the following statements are correct regarding muscle proteins ? (i) Actin is a thin filament and is mde up to two F-actin (ii) The complex protein, tropomyosin is distributed at regular intervals on the troponin (iii) Myosin is a thick filament which is also a polymerised protein. (iv) The globular head of meromyosin consists of light meromyosin (LMM).A. ii,iii and iv are correctB. iand iii are correct C. i, ii and iii are correct D.  i, ii and iv are correct

Answer» Correct Answer - B
.Complex protein, troponin is distributed at regular in- tervals on the tropomyosin.
.Globular head of meromyosin consists of heavy meromyosin (HMM).
267.

The monomeric protein which polymerises to form myosin isA. ActinB. MeromyosinC. TropomtosinD. Troponin

Answer» Correct Answer - B
268.

Centrum of man isA. ProcoelusB. AmphicoelusC. AmphiplateusD. Ophisthocoelous

Answer» Correct Answer - C
269.

Centrum is absent inA. Atlas vertebraB. Typical vertebraC. Sacral vertebraD. Ninth vertebra.

Answer» Correct Answer - A
270.

Name the structure used By Hydra to capture to capture food.

Answer» Correct Answer - Tentacles
271.

What is gout ?

Answer» Gout is a type arthritis where inflammation of joint ocurs to accumulation to acid crystals.
272.

Which movement is involved is involved in the passage of ovum through the oviduct ?

Answer» Correct Answer - Ciliary movement
273.

Skull of Rabbit `//` Man is `:-`A. MonocondylicB. DicondylicC. TricondylicD. Tetracondylic.

Answer» Correct Answer - B
274.

Skull of man isA. monocondylicB. dicondylicC. tricondylicD. tetracondylic.

Answer» Correct Answer - B
Skull of man is called dicondylic because it has two small protuberances know as occipital condyles at the posterior end. These condyles articulate with the atlas vertebra.
275.

Refer to the given graph carefully and answer the following question. Which of the labelled parts on the graph represents rigor mortis?A. XB. WC. ZD. Y

Answer» Correct Answer - D
Rigor mortis is the rigidity that develops in dying muscle as ATP becomes depleted and cross-bridges remain attached.Rigor mortis can be relieved only by removal of `Ca^(2)` and addition of ATP.
276.

Rigor mortis in due toA. Depeletion of ATPB. Excess of ATPC. Excess availability if CalciumD. Release of Magnesium

Answer» Correct Answer - A
. Chemical changes in the muscles after death causes stiffness of limb muscles called rigor mortis Rigor mortis is due to depletion of ATP.
277.

Identify the parts labelled as A to E in the given figure of a vertebral column and select the correct option. A. `{:(A,B,C,D,E),("Thoracic vertebrae","Cervical vertebrae","Lumbar vertibrae","Sacrum","Coccyx"):}`B. `{:(A,B,C,D,E),("Thoracic vertebrae","Cervical vertebrae","Lumbar vertibrae","Coccyx","Sacrum"):}`C. `{:(A,B,C,D,E),("Lumbar vertebrae","Thoracic vertebrae","Cervical vertibrae","Coccyx","Sacrum"):}`D. `{:(A,B,C,D,E),("Cervical vertebrae","Thoracic vertebrae","Lumbar vertibrae","Sacrum","Coccyx"):}`

Answer» Correct Answer - D
278.

During muscle contractionA. Chemical energy is changed into electrical energyB. Chemical energy is changed into mechanical energyC. Chemical energy is changed into physical energyD. Mechanical energy is changed into chemical energy

Answer» Correct Answer - B
279.

The given figure indicates vertebral column of human (right lateral view). Parts labelled as A,B,C and D respectively represent . A. Cervical vertebra, Intervertebral disc, Sacrum and Lumber vertebraB. Cervical vertebra, Intervertebral disc, Lumbar vertebra and CoccysC. Cervical vertebra, Intervertebral disc, Sacrum and CoccysD. Lumber vertebra, Intervertebral disc, Sacrum and Coccys

Answer» Correct Answer - C
280.

The figures given here repesent three diferent conditions of sarcomeres. Identify these conditions and select the correct option A. `{:("(A)",(B),(C),),("(Contractin)",("Relaxed"),("Maximally contracted"),):}`B. `{:("(A)",(B),(C),),("(Relaxed)",("Contracting"),("Maximally contracted"),):}`C. `{:("(A)",(B),(C),),("(Maximally contracted)",("Contracting"),("Relaxed"),):}`D. `{:("(A)",(B),(C),),("(Relaxed)",("Contracted"),("Contracting"),):}`

Answer» Correct Answer - B
In the given figure A, the length of the two sarcomeres is normal i.e., the muscle is in relaxed state. In figure B. the length of sarcomeres, shortens, H-zone narrows and size of l-band decreases i.e., the muscle is contracting. In figure C, the length of sarcomere further shortens and H-zone disappears and l-band further decreases i.e., the muscle is maximally contracted.
281.

Following is given a randomly arranged list of events that occur at neuromuscluar junction to trigger mucle contraction. (i) Receptor sites on sarcolemma Nerve impulse (iii) Release of `Ca^(+2)` from sarcoplasmic reticulum (iv) The neurotransmitter acetylcholine is released (v) Sarcomere shorten (vi) Synaptic cleft (vii) Spread of impulses over sarcolemmna on T-tubules Which of the following gives the correct sequence of these steps?A. `(ii)rarr(iv)rarr(i)rarr(vi)rarr(vii)rarr(iii)rarr(v)`B. `(ii)rarr)(iv)rarr(vi)rarr(i)rarr(vii)rarr(iii)rarr(v)`C. `(i)rarr(ii)rarr(iii)rarr(iv)rarr(v)rarr(vi)rarr(vii)`D. `(vii)rarr(vi)rarr(v)rarr(iv)rarr(iii)rarr(ii)rarr(i)`

Answer» Correct Answer - B
282.

Which of the following sarcomeres is labelled correctlyA. B. C. D.

Answer» Correct Answer - D
283.

Electron microscopic studies of the sarcomeres have revealed that during muscle contractionA. The width of A-band remains constantB. The width of the H-zone becomes smallerC. The width of I-band increasesD. The diameter of the fibre increases

Answer» Correct Answer - A
284.

Which of the following statements about the striated muscle is incorrectA. In the centre of each I-band is an elastic (Z-line) which bisects it.B. Thin filaments are firmly attached to the Z-line.C. M-line is a fibrous membrane in the middle of A-bands.D. none of these

Answer» Correct Answer - D
A myofibril has dark and light bands. The dark band called A-band has at the centre, a comparatively less dark zone called H-zone. In the centre of H-zone is the M-line (mittleschebe line). Each l-band has at its centr a dark membrane called Z-line (Zwischenschiebe line). The part of the myofibril between two successive Z-lines is called sacromere. In fact each sacromere is a bundle of thick and thin myofilaments.
285.

Which of the following sarcomeres is lablled correctly ?A. B. C. D.

Answer» Correct Answer - A
286.

In tetany patients the level of _______ decreases in the extra cellular matrix

Answer» Correct Answer - Calcium
287.

Where does uric acid deposit in gout ?

Answer» Correct Answer - Synovial joint
288.

Gout is due to accumulation ofA. Uric acidB. Calcium carbonateC. Oxalic acidD. Lactic acid.

Answer» Correct Answer - A
289.

The muscle is a specuialised tissue which is originated fromA. EndodermB. MesodermC. EctodermD. Yolk sac

Answer» Correct Answer - B
290.

The cells of the body which show pseudpodial movement areA. RBC and WBCB. WBC and macrophagesC. Liver cell and WBCD. Marcrophages and liver cell

Answer» Correct Answer - B
291.

Which of the following structures contract and relax rhythically to produce movement ?A. FlagellaB. CiliaC. MusclesD. Pseudopodia

Answer» Correct Answer - C
292.

How many curvature(s) is/are present in clavicle bone?A. 1B. 2C. 3D. 4

Answer» Correct Answer - B
Each clavicle is a long slender bone with two curvatures.
293.

Select the true statementA. A band is present in the middle of sarcomereB. H zone is present in the middle of A - bandC. M line is present in the middle of H-ZoneD. All of these

Answer» Correct Answer - D
294.

Which one is bone of fore limb ?A. HumerusB. FemurC. TibiaD. Fibula.

Answer» Correct Answer - A
295.

What is sprainA. More pulling of tendonB. Less pulling of tendonC. More pulling of ligamentD. Less pulling of ligament

Answer» Correct Answer - C
296.

Read the following statements and find out the incorrect statement(s). A. Siiding filament theory states that contraction of a muscle fibre takes place by the sliding of the thick filaments over the thin filaments. B. Muscle contraction is initiated by a signal sent by the CNS via a sensory neuron. C.  A motor neuron along with the muscle fibre connected to it constitute a motor-end plate.D. All of the above

Answer» Correct Answer - D
.Sliding filament theory states that contraction of a muscle fibre takes place by the sliding of the thin filaments over the thick filaments.
.Muscle contraction is initiated by a signal sent by the CNS via a motor neuron.
.A motor neuron along with the muscle fibre connected to it constitute a motor-unit.
297.

Nucleus pulposus occurs inA. BrainB. LiverC. KidneyD. Intervetebral disc.

Answer» Correct Answer - D
Nucleus pulposus occurs in intervertebral disc.
298.

Sternum is present on the ventral side of the body.

Answer» Correct Answer - True
299.

At rest, when mucsle is relaxed, thin filaments interdigitate with thick filaments onlyA. Outsine A- bandB. Outside H- bondC. Inside A- bandD. Inside M-line

Answer» Correct Answer - B
300.

The ion that must be present in adequate amount for the binding of cross bridges with actin isA. `Ca^(+)`B. `Na^(+)`C. `K^(+)`D. `Mg^(+2)`

Answer» Correct Answer - A