11th Class Biology Human Skeletal and Muscular Systems MCQs

1.Which structures are part of the appendicular skeleton?

2.The term muscle fibre or myofibre refers to;

3.Which of these extends the entire length of a muscle fibre?

4.Actin filaments are made of proteins;

5.In a muscle, the Z-line are the proteins for the attachment of the ends of;

6.Sarcomere is a part between;

7.Which part of muscle fibre releases calcium ions which trigger contraction?

8.Which statement is correct to describe sliding filament model of muscle contraction?

9.When a muscle fibre shortens, which of the following also shortens?

10.Which statement correctly describes an event of muscle contraction?

11.Tendons connect bone and:

12.What is true about antagonistic pair of muscles?

13.The broad ends of a bone are called:

14.The middle part of long bone along the length is called:

15.A dense layer of vascular connective tissue enveloping the bones except at the surface of the joints is called:

16.The thick layer under the periosteum; made up of hard material, osteocytes, collagen is called:

17.The basic structural units of compact bone are called:

18.The concentric layers of mineralized extra cellular matrix that contains collagen fibres & needle shaped crystals of calcium phosphate is:

19.The concentric layers of lamellae surround a central canal are called:

20.Red marrow is found in:

21.Yellow marrow:

22.Which of the following is incorrect about yellow marrow?

23.The body mass formed by bones is:

24.The type of bone cells which secrete unmineralized ground substances are:

25.The bone cells which maintain healthy bone tissue by secreting enzymes and bone mineral content, also regulate calcium release from bones are:

26.The cells of bones which are important to the growth and repair of bone are:

27.Identify the cell:

28.The process of formation of bone is called:

29.The step of osteogenesis by which cartilage is replaced by bone by the deposition of minerals is called:

30.Layer of connective tissue that surrounds the cartilage having blood vessels and nerves is called:

31.The cells that make the cartilage matter are:

32.The type of cartilage which is found in areas of the body that experience high stress and tension is:

33.The most abundant and the most common type of cartilage is:

34.Which of the following is found in epiglottis?

35.Having limited repair-ability, no direct blood vessels/supply, the most likely it is:

36.The adult human skeletal system consists of __ bones.

37.Which of the following is NOT the part of axial skeleton?

38.All of the following belongs to brain box (except):

39.Inferior nasal concha belongs to:

40.The number of paired and unpaired facial bones are:

41.Pick the odd one:

42.Small single bone, which lies at the base of skull below tongue, does not articulate with any other bone is:

43.Which of the following shows the correct sequence of vertebrae?

44.The 8th, 9th and 10th pairs of ribs are attached to the sternum by means of:

45.Clavicle articulates with:

46.Long bone, having spherical head, which fits into glenoid cavity is:

47.The total number of phalanges in an adult is:

48.The type of joint in which bones are directly connected to each other by collagen are called:

49.Sutures occur between:

50.Which of the following is an example of cartilaginous joints?

51.The most common type of joints in the human body are:

52.The joint which allow movement in two planes, one bone having concave surface, other having convex surface is:

53.Rotational movement around single axis is the characteristic of:

54.The procedure in which a healthy joint from a donor is transplanted to replace the damaged joint, is called:

55.The human vertebral column has a distinctive ________ curve.

56.Which problems can arise due to improper posture?

57.What will be your probable diagnosis if a patient present to you with pain, numbness, tingling in affected area, bowel and bladder dysfunction?

58.Choose the incorrect statement about disc slip.

59.The most common cause of spondylosis is:

60.A female presented to you with pain in lower back, buttocks & legs. She has difficulty in moving the legs. What is your possible diagnosis?

61.The most common type of arthritis is:

62.An autoimmune synovial disorder in which synovial membrane becomes inflamed, most commonly wrist and hands, is:

63.A male of 63 years comes to Dr. Asif (Orthopedic physician), complains of severe pain in the tarsometatarsal joint. His blood reports show high levels of uric acid. What will be most likely the discords he is suffering from?

64.A condition characterized by weakened bones, bone density decreased, is most likely:

65.Which of the following class of drugs may cause osteoporosis?

66.Dislocated joint can only be successfully corrected by a:

67.An injury to the ligament is called as:

68.An injury to tendon is called:

69.The first aid treatment for joint dislocation and sprain includes:

70.The study of muscles is called:

71.Which of the following tissue has the ability to contract in a coordinated way to produce movements?

72.The individual cells of the muscles are called:

73.The tissue responsible for providing the force that pushes substances, such as blood and food through the body is:

74.Regularly striped, cylindrical, voluntary control are the key features of:

75.Un-stripped, spindle shaped, one nucleus per cell are the characteristics of:

76.The commonality between skeletal muscles and cardiac muscles is:

77.The similarity between smooth and cardiac muscles is:

78.The collagen fibres and connective tissue which attach the muscle to bone are:

79.Sarcolemma is

80.Each muscle fibre contains elongated thread like structures called myofibrils.

81.The thick myofilaments create:

82.The thin active filaments are attached to protein discs called:

83.The smallest unit of muscle contraction is called:

84.The correct summary of structural organization of a skeletal muscles are

85.There are __ types of myofilaments

86.The thin filaments overlap with thick filaments which creates

87.The dark line in the center of H-band is called:

88.Thick myofilaments are about ____ in diameter:

89.Thin myofilaments are about ____ in diameter:

90.The protein stand which wrap about active core and stiffen it, is

91.Twisted strand of pearls is the characteristic of:

92.When a nerve impulse reaches sarcolemma ____ is released by motor neuron at synapse.

93.Sliding filaments model explains

94.The 2nd step of sliding filament model is:

95.When a muscle contracts, what does not happen?

96.The stiffening of muscles after death is called:

97.The end of skeletal muscle which is attached to stationary bone during contraction is:

98.The muscle which bends the bone at joint during contraction is:

99.Flexion or bending of lower leg is done by.

100.The hamstring muscle originates at;

101.The extensors of lower leg are

102.Decline in muscle performance after prolonged or intense physical activity with pain, decreased muscle strength and reduced endurance indicates.

103.Sudden, involuntary painful tanic contraction of muscle or group of muscles most commonly in feet and legs, occurs in:

104.Involuntary muscle contractions or spasm due to increased muscle tone and hyperexcitability of the nerves

105.The most common cause of tetany is:

106.Pick the disease which is potentially life-threating and more serious.

107.In human skeleton, joints serve as ______ and bones act as ______

Unit 12: Unit 12: Human Skeletal and Muscular Systems — Mcqs