Human Physiology Test

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Human Physiology Test - 4

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Question 1
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There are different types of movements. The universal property of which of the following types of movements is to exert a force by alternate contraction and relaxation?

A
Ciliary movement

B
Muscular movement

C
Amoeboid movement

D
Flagellar movement

Solution

The universal property of muscular movement is to exert a force by alternate contraction and relaxation. Humans need muscular movement to move jaws, tongue etc.
Question 2
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Which of the following muscles are found in the posterior part of oesophagus, stomach, intestine, lungs, urinogenital tract, urinary bladder etc?

a. Skeleton muscles
b. Visceral muscles
c. Cardiac muscles

A
Only a

B
Only a and c

C
Only b

D
Only c

Solution

Visceral muscles are found in the posterior part of oesophagus, stomach, intestine, lungs, urinogenital tract, urinary bladder etc. Autonomic nervous system controls these muscles.
Question 3
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Which of the following proteins is a globulin protein, has low molecular weight and occurs in monomeric and polymeric forms?

A
Actin

B
Tropomyosin

C
Troponin

D
Myosin

Solution

Actin is found in all eukaryotic cells and is a globulin protein, has low molecular weight and occurs in two forms - monomeric and polymeric G-actin and F-actin, respectively. During cell division, both of them are essential for mobility and contraction of cells.
Question 4
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Consider the following statements and choose the correct answer.

a. The most abundant mineral element found in muscles is sodium. Potassium, calcium, phosphorus etc. are present only in traces.
b. Binding of other components of troponin and inhibition of F-actin-myosin interaction are the functions of Troponin I.

A
Both the statements are true.

B
Both the statements are false.

C
Statement 'a' is false and 'b' is true.

D
Statement 'b' is false and 'a' is true.

Solution

This is the correct option as statement 'a' is false. The most abundant mineral element found in muscles is potassium. Sodium, calcium, phosphorus etc. are present only in traces.
Question 5
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Skeletal muscles are of different types based on the movement they bring. Which of the following muscles bends one part of a limb on another at a joint?

A
Abductor

B
Adductor

C
Extensor

D
Flexor

Solution

Flexor muscle bends one part of a limb on another at a joint. Example of flexor muscle is the elbow joint. The forearm is brought towards the upper arm by this muscle.
Question 6
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Antagonistic muscles act in opposition to other muscles. Which of the following are the antagonist muscles of dilators?

A
Elevators

B
Pronators

C
Sphincters

D
Depressors

Solution

Sphincters are the antagonist muscles of dilators. Sphincters decrease the size of an opening whereas dilators enlarge the size. Pyloric sphincter is an example.
Question 7
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Skeleton is the hard internal or external structure of an animal's body. Which of the following is/are the function(s) of skeleton?

A
It helps in breathing and hearing.

B
It is a mineral reserve.

C
It helps in blood cells formation.

D
All of these

Solution

All of these are the functions of skeleton.
Calcium and phosphorus levels are maintained by bones of the skeleton. When in demand, excessive amounts are released.
Breathing is helped by the soft cartilages of larynx, trachea, sternum and ribs.
RBCs and WBCs are produced by the bone marrow. Hematopoietic stem cells produce these blood cells.
Question 8
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There are 6 ear ossicles present in the skull. Which of the following options mentions them correctly?

A
2 zygomatic, 2 maxilla and 2 lacrimal

B
2 palatine, 2 lacrimal, 1 mandible and 1 vomer

C
2 malleus, 2 incus and 2 stapes

D
2 parietal, 2 temporal, 1 occipital and 1 ethmoid

Solution

This is the correct option as 2 malleus, 2 incus and 2 stapes are the 6 ear ossciles in the skull.
Question 9
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Which of the following vertebrae are five in number, are present in the abdomen and are the largest and strongest in the vertebral column?

A
Lumbar vertebrae

B
Thoracic vertebrae

C
Cervical vertebrae

D
Sacrum

Solution

Lumbar vertebrae begin about five or six inches below the shoulder blades, are five in number, are present in the abdomen and are the largest and strongest in the vertebral column. Their function is protection and support of spinal cord and spinal nerves. Lumbar vertebrae comprise of five individual cylindrical bones.
Question 10
1 / -0

Human body consists of 12 ribs. Which of the following are called true ribs because they are attached directly to the sternum by costal cartilages?

A
The eighth, ninth and tenth pairs

B
The first seven pairs

C
The last two pairs

D
The fourth, fifth and sixth pairs

Solution

The first seven pairs are called true ribs because they are attached directly to the sternum by costal cartilages. The first seven pairs are attached directly to the breastbone.
Question 11
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Which of the following bones of the legs is the longest and the strongest bone of body?

A
Patella

B
Tibia

C
Femur

D
Fibula

Solution

Femur is the longest and the strongest bone of the body. It allows motion of the leg and supports body weight. Its head fits into the hip socket.
Question 12
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There are four categories of bones according to their shape and size. Which of the following are the examples of flat bones?

A
Carpals of wrist, tarsals of ankle and cranial bones

B
Phalanges of fingers and toes, metatarsals of sole and carpals of wrist

C
Radius of ulna and forearm, tibia and fibula of shank and metatarsals of sole

D
Scapula of pectoral girdle, sternum and cranial bones

Solution

Scapula of pectoral girdle, sternum and cranial bones are the examples of flat bones. The function of flat bones is extensive protection. They provide broad surfaces for muscular attachment. They also protect internal organs.
Question 13
1 / -0

Synovial joints are according to the shape of the bone and types of movement they allow. A spool like surface of one bone fits into the concave surface of another bone in which of the following joints?

A
Hinge joint

B
Gliding joint

C
Pivot joint

D
Ellipsoid joint

Solution

In hinge joints, a spool like surface of one bone fits into the concave surface of another bone. Elbow joint, ankle joint etc. are examples of hinge joints. Hinge joints move the joints that need extension and flextion.
Question 14
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Consider the following statements and choose the correct option.

a. The main characteristic of rheumatoid arthritis is the progressive erosion of articular cartilage at synovial joint.
b. The cause of gouty arthritis is a defect in purine metabolism that causes an excess of uric acid and its salts.

A
Both the statements are true.

B
Both the statements are false.

C
Statement 'a' is false and 'b' is true.

D
Statement 'b' is false and 'a' is true.

Solution

This is the correct option as statement 'a' is false. The main characteristic of osteoarthritis is the progressive erosion of articular cartilage at synovial joint. The most common symptom of this is joint pain in the hands, neck, lower back, knees or hips.
Question 15
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Which of the following is the characteristic of pelvic girdle that supports the posterior region of the trunk?

A
It has no articulation with vertebral column.

B
Its bones are thick as it is subjected to much stress.

C
Each bone has a glenoid cavity into which the head of humerus is articulated.

D
There are two separated pelvic girdles. Each consists of two bones: one clavice and one scapula.

Solution

This is the correct option as this is the characteristic of pelvic girdle. Its bones are thick as it is subjected to high stress.

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Human Physiology Test - 4

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Human Physiology Test - 4

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Question 1

Ciliary movement

Muscular movement

Amoeboid movement

Flagellar movement

Solution

Question 2

Only a

Only a and c

Only b

Only c

Solution

Question 3

Actin

Tropomyosin

Troponin

Myosin

Solution

Question 4

Both the statements are true.

Both the statements are false.

Statement 'a' is false and 'b' is true.

Statement 'b' is false and 'a' is true.

Solution

Question 5

Abductor

Adductor

Extensor

Flexor

Solution

Question 6

Elevators

Pronators

Sphincters

Depressors

Solution

Question 7

It helps in breathing and hearing.

It is a mineral reserve.

It helps in blood cells formation.

All of these

Solution

Question 8

2 zygomatic, 2 maxilla and 2 lacrimal

2 palatine, 2 lacrimal, 1 mandible and 1 vomer

2 malleus, 2 incus and 2 stapes

2 parietal, 2 temporal, 1 occipital and 1 ethmoid

Solution

Question 9

Lumbar vertebrae

Thoracic vertebrae

Cervical vertebrae

Sacrum

Solution

Question 10

The eighth, ninth and tenth pairs

The first seven pairs

The last two pairs

The fourth, fifth and sixth pairs

Solution

Question 11

Patella

Tibia

Femur

Fibula

Solution

Question 12

Carpals of wrist, tarsals of ankle and cranial bones

Phalanges of fingers and toes, metatarsals of sole and carpals of wrist

Radius of ulna and forearm, tibia and fibula of shank and metatarsals of sole

Scapula of pectoral girdle, sternum and cranial bones

Solution