Locomotion and Movement Test

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Locomotion and Movement Test - 35

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Question 1
1 / -0

The major advantage of bipedal locomotion is that it

A
Releases forelimbs for other purposes

B
Increases speed

C
Reduces body weight

D
Provides better support to the body

Solution

Bipedalism is a form of terrestrial locomotion where an organism moves by means of its two rear limbs or legs. The major advantage of bipedal locomotion is that it releases forelimbs for other purposes.
So, the correct answer is 'Releases forelimbs for other purposes.'
Question 2
1 / -0

What does the given graphical representation show about the mechanism of skeletal muscle contraction?

A
Summation and fatigue

B
TetanizatIon and fatigue

C
Summation and tetanization

D
Summation and contracture
Question 3
1 / -0

This disease is diagnosed by the presence of IgM:

A
Osteoporosis

B
Gout

C
Osteoarthritis

D
Rheumatoid arthritis
Question 4
1 / -0

Which of the following indicates tetany?

A
Spasm

B
Muscular cramps

C
Tremors

D
All of the above

Solution

Tetany is a condition marked by intermittent muscular cramps and spasms, caused by malfunction of parathyroid glands and due to deficiency of calcium. Tremors are also seen.
So, the correct answer is 'All of the above'.
Question 5
1 / -0

Statement I : Microtubules are formed only in animal cells.
Statement II : Microtubules are made up of a protein called myosin.
Choose the correct option.

A
Statement I is correct and statement II is incorrect.

B
Statement II is correct and statement I is incorrect.

C
Both statements are correct.

D
Both statements are incorrect.

Solution

Microtubules are found in both animal and plant cells and are formed of protein tubulin.
Question 6
1 / -0

Phalangeal formula of hand of man is

A
1, 2, 2, 2, 2

B
2, 1, 1, 1, 1

C
2, 3, 3, 3, 3

D
2, 3, 3, 2, 2

Solution

The skeletal system is of two types axial and appendicular. Axial skeletal consists of the skull, rib cage, and vertebral column. It consists of limbs and girdles. In humans, the forelimbs contain 30 bones. Humerus, radius and ulna, carpals, metacarpals, digits or phalanges are the constituents of forelimbs. The phalanges in forelimb (hand) are 14 in number which is disturbed as 2,3,3,3,3.
So, the correct answer is option C.
Question 7
1 / -0

Which of the following are the reasons(s) for rheumatoid arthritis? Choose the correct option
(i) Lymphocytes become more active
(ii) Body attacks self cells
(iii) More antibodies are produced in the body
(iv) The ability to differentiate pathogens or foreign molecules from self cells is lost

A
(i) and (ii)

B
(ii) and (iv)

C
(iii) and (iv)

D
(i) and (iii)

Solution

Rheumatoid arthritis is chronic pain due to inflammation of the synovial membrane of many joint simultaneously. It usually starts in the small joints in the hand and progressive and centripetal an asymmetric manner.
It involves erosion of the joints.
The major cause of this the lymphocytes become more active and the body cells lose the ability to differentiate between the self and the foreign cells. The lymphocytes start attacking the body cells.
So, the correct option is '(i) and (ii)'
Question 8
1 / -0

Mark the odd one w.r.t girdle bones

A
Clavicle

B
Ischium

C
Ileum

D
Pubis

Solution

Bones in the shoulder consists of the clavicle, scapula, and coracoid.
So, the correct option is 'Clavicle'.
Question 9
1 / -0

The functional unit of myofibril is made up of?

A
Complete A-band

B
Complete I-band

C
Complete I-band and two half A-band

D
Complete A-band and two half I-band

Solution

Myofibrils of skeletal muscles contain dark and light bands. The dark band is called Anisotropic or A-band and the light band is called Isotropic or I-band. The I-band is cut in the middle by a dark Z-line. The portion between two successive Z-lines is called sarcomere. Sarcomere is the functional unit of myofibrils. Hence, sarcomere contains one complete A-band and two half I-bands.
So, the correct answer is D.
Question 10
1 / -0

Which of the following components is a part of the pectoral girdle?

A
Acetabulum

B
Glenoid cavity

C
Ilium

D
Sternum

Solution

The shoulder girdle or pectoral girdle is the set of bones in the appendicular skeleton which connects to the arm on each side. In humans, it consists of the clavicle and scapula. There are three joints in the pectoral girdle: sternoclavicular, acromioclavicular, and glenohumeral.
Out of these, the glenohumeral joint joins the head of the humerus to the glenoid cavity. It’s a ball-and-socket joint that allows for a wide range of movement for the arm.
So, the correct option is 'Glenoid cavity'.

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Locomotion and Movement Test - 35

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Locomotion and Movement Test - 35

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SHARING IS CARING

Question 1

Releases forelimbs for other purposes

Increases speed

Reduces body weight

Provides better support to the body

Solution

Question 2

Summation and fatigue

TetanizatIon and fatigue

Summation and tetanization

Summation and contracture

Question 3

Osteoporosis

Gout

Osteoarthritis

Rheumatoid arthritis

Question 4

Spasm

Muscular cramps

Tremors

All of the above

Solution

Question 5

Statement I is correct and statement II is incorrect.

Statement II is correct and statement I is incorrect.

Both statements are correct.

Both statements are incorrect.

Solution

Question 6

1, 2, 2, 2, 2

2, 1, 1, 1, 1

2, 3, 3, 3, 3

2, 3, 3, 2, 2

Solution

Question 7

(i) and (ii)

(ii) and (iv)

(iii) and (iv)

(i) and (iii)

Solution

Question 8

Clavicle

Ischium

Ileum

Pubis

Solution

Question 9

Complete A-band

Complete I-band

Complete I-band and two half A-band

Complete A-band and two half I-band

Solution

Question 10

Acetabulum

Glenoid cavity

Ilium

Sternum

Solution

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