Locomotion and Movement Test

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Locomotion and Movement Test - 16

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Question 1
1 / -0

If two bones of shank region are broken, they must be

A
Femur and humerus

B
Tibia and fibula

C
Radius and ulna

D
Metacarpals

Solution

The bones of the axial skeleton form the structural framework of the body. Shank region is the part of the leg between knee and ankle which is made up of two major bones named tibia and fibula.
Therefore, the correct answer is B.
Question 2
1 / -0

Angular joints are present in between

A
Two skull bones

B
Metacarpal and a phalange

C
Rib and a vertebrae

D
The atlas and axis vertebrae

Solution

Joints in the human body are freely movable and consist of the joint capsule, articular cartilage, synovial membrane, and synovial (joint) cavity. Joint movements are also divided into four types-angular, gliding, rotation and circumduction. During angular motion, the angle between joints is either increased or decreased. This type of joint is found in between the metacarpal and phalange.
Question 3
1 / -0

Calcium hydroxyapatite is a major component of

A
Muscle fibre

B
Bone

C
Cartilage

D
Nerve cells

Solution

Seventy percent of bone is made up of the inorganic mineral hydroxyapatite, which includes calcium phosphate, calcium carbonate, calcium fluoride, calcium hydroxide and citrate. Calcium hydroxyapatite is a complete bone building food. Calcium hydroxyapatite can help to reduce bone loss and is the most easily absorbed calcium source.
Therefore, the correct answer is option B.
Question 4
1 / -0

Which one of the following is the correct matching of three items and their grouping category?

A
Actin, myosin, rhodopsin : Muscle proteins

B
Cytosine, uracil, thiamine : Pyrimidines

C
Malleus, incus, cochlea : Ear ossicles

D
None of these

Solution

Actin and myosin are muscle proteins, while rhodopsin is a photoreceptor protein.
Cytosine, uracil, and thiamine are pyrimidines, that along with purines make up the genetic material.
Malleus, incus, and stapes together form the ear ossicles.
Question 5
1 / -0

Myasthenia gravis is caused due to

A
Interferon

B
Autoantibody

C
Antigen

D
Toxins

Solution

Myasthenia gravis a chronic autoimmune disease in which weakness of the skeletal muscles of the body occurs. In Myasthenia gravis, antibodies block the receptors for acetylcholine at the synapse, which prevents the muscle contraction.Therefore, the correct answer is option B.
Question 6
1 / -0

Out of the following pairs of the human skeletal parts, identify the wrongly matched pair

A
Humerus and ulna - Appendicular skeleton

B
Clavicle and glenoid cavity - Pelvic girdle

C
Sternum and ribs - Axial skeleton

D
Malleus and stapes - Ear ossicles

Solution

The human skeleton is made up of 206 bones of which the vertebral column is made up of 33 bones. The pelvic girdle that is a part of the appendicular skeleton. Two hip bones along with sacrum and coccyx form the pelvic girdle which surrounds the pelvic cavity. The humerus and ulna from the elbow joint, the clavicle and glenoid cavity form the bones of the shoulder joint.
Question 7
1 / -0

Chemical ions responsible for muscle contraction are:

A
$${ Ca }^{ ++ }$$ and $${ K }^{ + }$$

B
$${ Na }^{ + }$$ and $${ K }^{ + }$$

C
$${ Na }^{ + }$$ and $${ Mg }^{ ++ }$$

D
$${ Ca }^{ ++ }$$ and $${ Mg }^{ ++ }$$
Solution
- Calcium ions play a significant role in muscle contraction. These activate the interaction of myosin and actin, through the intervention of tropomyosin and troponin.
- Magnesium, in muscle contraction, stimulates calcium re-uptake by the calcium-activated ATPase of the sarcoplasmic reticulum. It also affects the translocation of calcium ions through the smooth muscle cell membrane.
Hence, the correct option is D.
Question 8
1 / -0

Red muscle fibres are more in

A
Smooth muscles

B
Skeletal muscles

C
Cardiac muscles

D
None of the above
Solution
- Muscle which is the soft tissue found in animals contains protein filaments of actin and myosin.
- The muscle tissues are of three main types- skeletal, smooth and cardiac. Based on the color, the skeletal muscles are classified into the red muscle or slow muscle and white muscle or fast muscle.
- The red muscles are thin muscle fibers and the red color is due to large amounts of myosin.
  
  Hence, the correct answer is B .
Question 9
1 / -0

Contractile unit of muscle fibres is

A
Muscle fibre

B
Sacromere

C
Myofibril

D
Sacrosome

Solution

The entire cross section of the muscle fibre is taken up by long, cylindrical strands of contractile proteins called myofibrils. One myofibril is divided into segments called sarcomeres. These are the contractile units of a muscle. A dark stripe called a Z disc marks the ends of one sarcomere and the beginning of the next.
Question 10
1 / -0

Symptoms of Lathyrism is/are

A
Bone deformation

B
Muscular dystrophy and paralysis

C
Asphyxia

D
Cardiac arrest

Solution

Lathyrism is a neurological disease of humans and domestic animals. It is caused by consumption of legumes of genus Lathyrus sativus (Kesari Dal). Common symptoms include leg weakness, leg paralysis, muscular dystrophy, rigidity and spasticity in leg muscles. Hence option B is correct.

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Locomotion and Movement Test - 16

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Locomotion and Movement Test - 16

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Question 1

Femur and humerus

Tibia and fibula

Radius and ulna

Metacarpals

Solution

Question 2

Two skull bones

Metacarpal and a phalange

Rib and a vertebrae

The atlas and axis vertebrae

Solution

Question 3

Muscle fibre

Bone

Cartilage

Nerve cells

Solution

Question 4

Actin, myosin, rhodopsin : Muscle proteins

Cytosine, uracil, thiamine : Pyrimidines

Malleus, incus, cochlea : Ear ossicles

None of these

Solution

Question 5

Interferon

Autoantibody

Antigen

Toxins

Solution

Question 6

Humerus and ulna - Appendicular skeleton

Clavicle and glenoid cavity - Pelvic girdle

Sternum and ribs - Axial skeleton

Malleus and stapes - Ear ossicles

Solution

Question 7

$${ Ca }^{ ++ }$$ and $${ K }^{ + }$$

$${ Na }^{ + }$$ and $${ K }^{ + }$$

$${ Na }^{ + }$$ and $${ Mg }^{ ++ }$$

$${ Ca }^{ ++ }$$ and $${ Mg }^{ ++ }$$

Solution

Question 8

Smooth muscles

Skeletal muscles

Cardiac muscles

None of the above

Solution

Question 9

Muscle fibre

Sacromere

Myofibril

Sacrosome

Solution

Question 10

Bone deformation

Muscular dystrophy and paralysis

Asphyxia

Cardiac arrest

Solution

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