0

Introduction to skeletal system - class-V

Attempted 0/25 Correct 0 Score 0

Neutrophils and lymphocytes originate from __________.

  1. Kidney tubule

  2. spleen

  3. bone marrow

  4. lymph node


Correct Option: C

Absorption of water in the human body can be found in 
1) renal tubule in kidney
2) hepatic cells in liver
3) large intestine
4) pancreatic duct
Select the correct answer using the codes given below.

  1. 1 , 2 and 3

  2. 1 and 3

  3. 2 and 4

  4. Only 3


Correct Option: D

Whilst doing research, objectivity has to be attained being aware at same time, that sociology always deals with human life and people are

  1. Ethical responsibility

  2. Value relevance

  3. Tools

  4. Honesty


Correct Option: A

Consider the following statements:
$1$. Bones and blood are mesodermal in origin.
$2$. Mast cells are modified basophils and secrete heparin.
$3$. Adipose cells store fat.
Which of the statements given are correct?

  1. $1$ and $2$

  2. $2$ and $3$

  3. $1, 2$ and $3$

  4. None of these


Correct Option: C

Consider the following statements:
$1$. Femur is the longest bone in human body.
$2$. Stapes is the smallest bone found in ear.
$3$. Stapedius is the smallest muscle in our body.
$4$. Turbinal bones can be traced in forelimbs.
Which of the statements given are correct?

  1. $3$ and $4$

  2. $1, 2$ and $4$

  3. $2$ and $3$

  4. All of these


Correct Option: B

Consider the following statements:
$1$. The element found in bone and teeth is calcium and phosphorus.
$2$. Bones join with muscles with the help of tendons.
$3$. Bone of man became weak in old age due to deficiency of calcium.
Which of the statement(s) given is/are correct?

  1. $1, 2$ and $3$

  2. $2$ and $3$

  3. $1$ and $2$

  4. Only $1$


Correct Option: A

Consider the following statements:
$1$. Calcium phosphate is found in bones is largest in amount.
$2$. Longest bone is found in thigh region of human body.
$3$. Longest bone found in man is Femur.
Which of the statement(s) given is/are true about bone?

  1. Only $1$

  2. Only $2$

  3. $1, 2$ and $3$

  4. None of these


Correct Option: C

Consider the following statements:
$1$. Humerus is found in human leg.
$2$. Smallest bone of human body is Stapes.
Which of the statement(s) given is/are correct?

  1. Only $1$

  2. Only $2$

  3. $1$ and $2$

  4. None of these


Correct Option: B

Study the following statements:
$1$. Study of bones is called Osteology.
$2$. Process of bone formation is known as Ossification.
$3$. Sesamoid bones are formed by ossification in tendons.
Which of the statements given are correct about bones?

  1. $1, 2$ and $3$

  2. $2$ and $3$

  3. $1$ and $3$

  4. $1$ and $2$


Correct Option: A

Study the following statements:
$1$. Tendons connect bone to muscles.
$2$. Bone forming cells are osteoblasts.
$3$. Ligament connect bone to bone.
Which of the statements given are correct?

  1. $1$ and $2$

  2. $2$ and $3$

  3. $1, 2$ and $3$

  4. None of these


Correct Option: C

Match List I with List II and select the correct answers using the codes given the lists.

List I List II
A. Coating on the crown of a tooth $1$. Dentine
B. Mineralized material that forma bulk of a tooth $2$. Enamel
C. Top of a tooth $3$. Tooth root
D. Base of a tooth $4$. Tooth crown
  1. A-$1$, B-$3$, C-$4$, D-$2$

  2. A-$2$, B-$1$, C-$4$, D-$3$

  3. A-$3$, B-$4$, C-$2$, D-$1$

  4. A-$4$, B-$2$, C-$1$, D-$3$


Correct Option: B

Bones of old persons are brittle and fractured more readily occur because they contain more _________.

  1. lacunae

  2. organic matter

  3. inorganic matter

  4. bone marrow


Correct Option: C

Consider the following statements:
$1$. Bones and blood are mesodermal in origin.
$2$. Serum is plasma minus clotting factor.
$3$. Five types of leucocytes are found in mammals.
$4$. Bone forming cells are called Osteoblast.
Which of the statements given are correct?

  1. $1$ and $2$

  2. $2$ and $3$

  3. $1, 3$ and $4$

  4. $1, 2, 3$ and $4$


Correct Option: D

Which one of the following carries out the function in human being similar to the one which Malpighian tubules perform in cookroach and other insects ?

  1. Lung

  2. Kidneys

  3. Heart

  4. Reproductive organs


Correct Option: B

Choose the correct answer from the alternatives given.
Bile is stored in

  1. Gall bladder

  2. Duedenum

  3. Liver

  4. Spleen


Correct Option: A

Which of the following is not a function of skeletal system?

  1. Production of eythrocytes

  2. Storage of minerals

  3. Production of body heat

  4. Locomotion


Correct Option: C
Explanation:

  • The adult human skeletal system consists of 206 bones, as well as a network of tendons, ligaments and cartilage that connects them.
  •  The skeleton serves six major functions: support, movement, protection, production of blood cells, storage of minerals and endocrine regulation. Hence, Production of body heat is not a function of the skeletal system.
 So, the correct answer is 'Production of body heat

The protein content of skeletal muscles is ............ %.

  1. 10

  2. 20

  3. 40

  4. 30


Correct Option: B
Explanation:

Skeletal muscle represents the majority of muscle tissue. It is the type of muscle, that powers movement of the skeleton. Their composition is 75-80 percent water, 15-20 percent proteins, 1 percent glycogen, 1 percent lipids and 1 percent mineral salts.

Water content of skeletal muscles is ............... %.

  1. 25

  2. 50

  3. 75

  4. 90


Correct Option: C
Explanation:

The water and electrolyte content of skeletal muscle was an average of 78.8 gm. of water, 4.96 milliequivalent (meq.) of sodium, 8.32 meq. of potassium, 4.04 meq. of chloride, 0.445 meq. of magnesium, and 3.88 meq. of phosphorus per 100 gm. of wet tissue or muscle. Hence, the percentage of water content in skeletal muscle can vary from 75-78%.

Which one of the following is the correct description of a certain part of a normal human skeleton?

  1. Parietal bone and the temporal bone and the skull are joined by fibrous joint.

  2. First vertebrae is axis, which articulates with the occipital condyles.

  3. The 9th and 10th pairs of ribs are called the floating ribs.

  4. Glenoid cavity is a depression to which the thigh bone articulates.


Correct Option: A
Explanation:

A suture is a type of fibrous joint, which only occurs in the skull. These joints are synarthroses. One parietal bone is located on each side of the skull just behind the frontal bone. The temporal bones are situated at the sides and base of the skull, and lateral to the temporal lobes of the cerebrum.

Which of the following is not a function of the skeleton system?

  1. Production of erythrocytes

  2. Storage of minerals

  3. Production of body heat

  4. Locomotion


Correct Option: C
Explanation:

Skeletal system is the articulation bones to give perfect shape to the body. They help in locomotion by attaching with muscles. 

Bones are made up of minerals like Ca++ and po4-. So they act as store house of minerals. 
Bones have bone marrow which contain stem cells. Stem cells are the precursors of blood form cells like RBC, WBC and platelets,
Skeletal system doesn't play any role in production of heat. Heat production is regulated by metabolic processes. 
So the correct option is C.

- Hide questions