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neet > locomotion and movement > Flashcards

locomotion and movement Flashcards

1
Q

cilia helps in movement of food in the

A

cytopharynx

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2
Q

amoeboid movement includes

A

macrophage, amoeba, monocytes, lymphocytes

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3
Q

ciliated movement in

A

paramecium, fallopian tube, bronchioles

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4
Q

about ____% of body weight is due to muscles

A

40-50%

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5
Q

biceps have

A

skeletal muscles

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6
Q

each muscle is made of numerous bundles called ___

A

fascicles

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7
Q

the unit of muscular system is

A

myocyte or muscle fibre

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8
Q

the plasma membrane of muscles is called

A

sarcolemma

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9
Q

the mitochondria of muscles is called

A

sarcosome

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10
Q

____ is the storehouse of Ca2+

A

sarcoplasmic reticulum

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11
Q

A band consists of ___

A

myosin + actin

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12
Q

I band consists of ___

A

actin

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13
Q

both actin and myosin are arranged _____

A

parallel to each other and also to the longitudinal axis of myofibrils

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14
Q

z line bisects

A

i band

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15
Q

the distance between two z line is called

A

sarcomere

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16
Q

during contraction ____

A

i band shortens, h zone disappears, sarcomere shortens, a band remains same

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17
Q

h zone is the

A

central part of a band which is not overlapped by actin filaments

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18
Q

each actin consists of _____

A

two f actin filaments which are helically wounded

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19
Q

each f-actin is a polymer of

A

monomeric g actin (globular)

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20
Q

two filaments of ____ also run close to f actins

A

tropomysoins

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21
Q

troponin is a ___

A

complex protein which is distributed at regular intervals on the tropomyosins

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22
Q

each myosin consists of two ___

A

monomeric meromysoins

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23
Q

heavy meromyosin contains

A

globular head and short arm

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24
Q

light meromyosin contains

A

tail

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25
Q

cross bridge is formed between

A

actin binding site of myosin and myosin binding site of actin

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26
Q

neurotransmitter involved in contraction is

A

acetylcholine

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27
Q

contraction ends when

A

ca2+ is pumped back into the sarcoplasmic reticulum

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28
Q

number of bones in humans is

A

206

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29
Q

number of bones in skull is

A

22

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30
Q

number of cranial bones are

A

8

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31
Q

number of facial bones are

A

14

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32
Q

paired skull bones are

A

temporals and parietals

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33
Q

sella turscia is present in

A

sphenoid

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34
Q

the tongue bone is

A

hyoid

35
Q

first vertebra is

A

atlas

36
Q

second vertebra is

A

axis

37
Q

skull is dicondylic because

A

two occipital condyles articulate with atlas

38
Q

number of vertebrae

A

26

39
Q

vertebral formula in adults is

A

C7 T12 L5 S1 Co1

40
Q

spinal cord runs through the

A

neural canal

41
Q

sternum is located in the

A

ventral midline of thorax

42
Q

prosternum articulates with

A

first rib and clavicle

43
Q

mesosternum articulates with

A

2-7th ribs

44
Q

the pointed end of sternum is called

A

xiphoid process

45
Q

the atlas and axis are connected by

A

odontoid process

46
Q

the ribs are bicephalic because

A

two dorsal articulation surfaces

47
Q

vertebrosternal ribs are

A

1-7th pairs

48
Q

vertebrochondral ribs are

A

8, 9, 10

49
Q

renal ribs are

A

11 and 12

50
Q

ribs and sternum connected by

A

hyaline cartilage

51
Q

cartilage between the vertebrae which act as shock absorbers are

A

hyaline

52
Q

appendicular skeleton includes

A

126 bones

53
Q

each limb has

A

30 bones

54
Q

forelimb has

A

humerus, radius, ulna, 8 carpals, 5 metacarpals, 14 phalanges

55
Q

hindlimb has

A

femur, tibia, fibula, patella, 7 tarsals, 5 metatarsals, 14 phalanges

56
Q

knee cap covers the knee

A

ventrally

57
Q

humerus and ulna articulate by

A

olecaron process

58
Q

humerus and scapula by

A

glenoid cavity

59
Q

scapula is

A

large triangular dorsal bone

60
Q

elevated ridge of scapula is called the

A

spine

61
Q

each clavicle has

A

two curvatures

62
Q

pelvic girdle is formed by

A

two coxal bones

63
Q

each coxal bone has

A

ilium, ischium and pubis

64
Q

_____ connects the two coxal bones

A

pubic symphysis

65
Q

femur and pelvis by

A

acetabulum

66
Q

pelvis is at the level of ____

A

sacrum

67
Q

fibrous joints between

A

cranial bones (sutures)

68
Q

cartilaginous joints

A

ribs and sternum, intervertebral

69
Q

pubic symphysis contains

A

fibrous joint

70
Q

synovial joints is filled with

A

synovial fluid

71
Q

ball and socket between

A

femur and pubis, humerus and scapula

72
Q

hinge joint

A

knee, elbow

73
Q

pivot joint

A

atlas and axis

74
Q

gliding joint

A

carpals and tarsals

75
Q

saddle joint

A

carpals and metacarpals and tarsals and metatarsals

76
Q

ellipsoidal joint

A

phalanages

77
Q

affecting neuromuscular junction and cause paralysis of muscle

A

myasthenia gravis

78
Q

myasthenia gravis is a

A

autoimmune disorder

79
Q

tetany is caused by

A

low ca2+, spasm

80
Q

muscular dystrophy is

A

genetic, progressive degeneration of skeletal muscle

81
Q

osetoporosis caused by

A

decreased estrogen, fractures

82
Q

arthritis

A

inflammation of joints

83
Q

gout is

A

uric acid crystals in joints

84
Q

rheumatoid arthritis is

A

autoimmune

neet (15 decks)

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