How many lumbar vertebrae present in the vertebral column of humans?

  •   7

  •   11

  •   6

  •   5 

The U-shaped bone present at the base of the buccal cavity is

  •   Skull

  •   Hyoid

  •   Incus

  •   stapes 

Which of the following are involved in the formation of acetabulum?

a. llium

b. ischium

c. Pubis

  •   a & b only

  •   b & c only

  •   a & c only

  •   a, b & c 

How many bones are present in the human body?

  •   205

  •   206

  •   201

  •   200 

The skeleton of the head is called

  •   Hyoid

  •   Skull

  •   Ossicle

  •   Cartilage 

The anaerobic contraction of skeletal muscle causes deposition or accumulation of

  •   Gluconic acid

  •   Lactic acid

  •   Pyruvic acid

  •   Hydrochloric acid 

Muscle fatigue occurs due to the accumulation of

 

  •   CO2

  •   Myosin ATPase

  •   Lactic acid

  •   Creatine phosphate 

Globular head of myosin molecule act as

  •   ATPase

  •   CTPase

  •   TTPase

  •   GTPase 

Contractile unit of muscle is part of myofibril between

  •   Z-line and l-band

  •   Z-line and Z-line

  •   Z-line and A-band

  •   A-band and l-band 

The ion that must be present in an adequate amount for binding of cross-bridges with actin is 

  •   Ca+2

  •   Na+

  •   K+

  •   Mg+2

According to the sliding filament theory of muscle contraction, the filament that move to shorten a muscle are 

  •   Myosin

  •   Actin

  •   Collagen

  •   Creatine phosphate 

In a contracted skeletal muscle fiber

  •   M line disappears

  •   H-zone elongates

  •   l-band remains constant

  •   A-band disappears 

Sheet or broadband of fibrous connective tissue that is deep to the skin and surrounds entire muscles and other organs of the body are

  •   Epimysium

  •   Fascicule

  •   Endomysium

  •   Fascia 

The muscle is a specialised tissue which is originated from

  •   Endoderm

  •   Mesoderm

  •   Ectoderm

  •   Yolk sac 

A collagenous connective tissue layer hold the muscle bundles together.

  •   Perimysium

  •   Endomysium

  •   Epimysium

  •   Fascia 

The plasma membrane of the muscle fibre is called

  •   Sarcoplasma

  •   Sarcolemma

  •   Sarcoplasmic Reticulum

  •   Syncytial 

The dark band present on myofibril is

  • Isotropic band

  • Anisotropic band

  • Hensen's zone 

  • M-line

The structural and functional unit of myofibril which contracts to cause movement is called

  •   Sarcolemma

  •   Sarcomere

  •   Fascia

  •   Myosin

Which of the protein is not a part of the thin myofilament?

  • Myosin

  •   Actin

  •   Troponin

  •   Tropomyosin 

Select the true statement 

  •   A band is present in the middle of the sarcomere

  •   H zone is present in the middle of A-band 

  •   M line is present in the middle of the H-zone

  •   All of these 

Which one is not the character of red skeletal muscle?

  •   Smaller diameter

  •   More mitochondria

  •   More sarcoplasmic reticulum

  •   More blood capillaries 

Match the following columns and select the correct option

        Column - I               Column - II

(a) Gout                         (i) Decreased levels of estrogen

(b) Osteoporosis              (ii) Low Ca++ ions in the blood

(c) Tetany                       (iii) Accumulation of uric acid crystals

(d) Muscular dystrophy     (iv) Autoimmune disorder

                                       (v) Genetic disorder

  • (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)

  • (a)-(iii), (b)-(i), (c)-(ii), (d)-(v)

  • (a)-(iv), .(b)-(v), (c)-(i), (d)-(ii)

  • (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

Match each item in Column I with one item in Column II and chose your answer from the codes given below:
Column I                                  Column II
I. Smooth muscle                1. Striated, voluntary
II. Skeletal muscle              2. Non-striated,involuntary
III. Cardiac muscle              3. Striated, involuntary

Codes:

I

II

III

1.

1

2

3

2.

3

1

2

3.

2

1

3

4.

1

3

2

  • 1
  • 2
  • 3
  • 4

Chronic auto immune disorder affecting neuro muscular junction leading to fatigue, weakening and paralysis of skeletal muscle is called as:

  • Myasthenia gravis

  • Gout

  • Arthritis

  • Muscular dystrophy

Match List-I with List-II

List-IList-II
(a) Scapula(i) Cartilaginous joints
(b) Cranium(ii) Flat bone
(c) Sternum(iii) Fibrous joints
(d) Vertebral column(iv) Triangular flat bone

Choose the correct answer from the options given below.

 (a)(b)(c)(d)
1.(iv)(ii)(iii)(i)
2. (iv)(iii)(ii)(i)
3.(i)(iii)(ii)(iv)
4.(ii)(iii)(iv)(i)
  • 1
  • 2
  • 3
  • 4

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.

  • (b), (c), (d), (e) only

  • (b), (d), (e), (a) only

  • (a), (c), (d), (e) only

  • (a), (b), (c), (d) only

In a healthy human adult, what contributes maximum to the total body weight?
 
  • Muscle
  • Bone
  • Fat
  • Hair
The relaxation of muscle after contraction is related to:
 
  • Hydrolysis of ATP by the myosin head
  • binding of calcium ions to Troponin C
  • Pumping of calcium ions back to the sarcoplasmic cisternae
  • Release of acetylcholine at the neuro-muscular junction
The given diagram shows a representation of a synovial joint found between atlas and axis vertebrae. What is this type of synovial joint called?
  • Hinge
  • Ball and socket
  • Pivot
  • Saddle
Which of the following bones is not a part of human cranium?
  • Sphenoid
  • Maxilla
  • Ethmoid
  • Occipital
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