Sternum

Q.

The ______, also known as the breast bone, is a long flat bone that lies in the middle of the front part of the chest.

1. humerus

2. patella

3. sternum

4. femur

Q. The 11th and 12th pairs of ribs are attached to the sternum.

1. False
2. True

Q.

Match the following details of Cartilage with their terms :

$\begin{array}{cc}ColumnI& ColumnII\\ 1.\text{Outer covering layer of cartilage}& a.\text{Chondroitin}\\ 2.\text{Cells of cartilage}& b.\text{Chondrin}\\ 3.\text{Locatione space of cells in cartilage}& c.\text{Perichondrium}\\ 4.\text{Matrix of cartilage}& d.\text{Chondrocytes}\\ 5.\text{Protein in cartilage}& e.\text{Lacunae}\end{array}$

1. 1.$\Rightarrow$ e, 2.$\Rightarrow$ b, 3.$\Rightarrow$ d, 4.$\Rightarrow$ a, 5.$\Rightarrow$ c.

2. 1.$\Rightarrow$ a, 2.$\Rightarrow$ c, 3.$\Rightarrow$ b, 4.$\Rightarrow$ d, 5.$\Rightarrow$ e.

3. 1.$\Rightarrow$ c, 2.$\Rightarrow$ d, 3.$\Rightarrow$ e, 4.$\Rightarrow$ b, 5.$\Rightarrow$ a.

4. 1.$\Rightarrow$ d, 2.$\Rightarrow$ c, 3.$\Rightarrow$ a, 4.$\Rightarrow$ e, 5.$\Rightarrow$ b.

Q. How many ribs are called false ribs ?

1. 10
2. 4 pairs
3. 12
4. 3 pairs

Q. How many false ribs present in Human being:

1. 6
2. 4
3. 8
4. 12

Q.

What kind of circulatory system is found Mollusca phylum?

Q. What are the different types of rib bones that form the rib cage?

Q. The rib cage has twelve pairs of ribs. The last two pairs are known as ........... ribs.

1. Sternum
2. Girdle
3. Incomplete
4. Floating

Q. .......... and .......... pairs of ribs are called floating ribs.

Q. Ribs attached to sternum are?

1. First seven pairs
2. All ten ribs
3. First five rib pairs
4. First ten rib pairs

Q.

Number of pairs of non-floating ribs in human rib cage

1. First seven pairs

2. All twelve pairs

3. First ten pairs

4. First five pairs

Q. _________________ are the curved bones which form the rib cage.

1. Spine
2. Ribs
3. Skull
4. None of the above

Q. 11th and 12th pair of ribs which are imperfectly formed and do not reach the sternum are called

1. pseudo ribs
2. false ribs
3. floating ribs
4. visceral ribs

Q. Out of 'X' pairs of ribs in humans only 'Y' pairs are true ribs. Select the option that correctly represents values of X and Y and provides their explanation.

1. $X=24,Y=12$ True ribs are dorsally attached to vertebral column but are free on ventral side
2. $X=12,Y=7$ True ribs are attached dorsally to vertebral column and ventrally to the sternum
3. $X=12,Y=5$ True ribs are attached dorsally to vertebral column and sternum on the two ends
4. $X=24,Y=7$ True ribs are dorsally attached to vertebral column but are free on ventral dise

Q. The head of the rib which articulates with the transverse process of thoracic vertebrae is called

1. Capitulum
2. Tuberculum
3. Centrum
4. Shaft

Q. The last two pairs of ribs are named floating ribs because

1. Their sternal parts are attached to the sternum directly.
2. Their sternal parts are attached on the 7th pair of ribs.
3. Their sternal parts remain free and do not even reach the sternum.
4. They float in the body cavity.

Q. Match column I with column II and select the correct option from the codes given below.

Column I	Column II
A. True ribs	(i) 3 pairs
B. False ribs	(ii) 2 pairs
C. Floating ribs	(iii) 7 pairs

1. A-(i), B-(ii), C-(iii)
2. A-(iii), B-(i), C-(ii)
3. A-(iii), B-(ii), C-(i)
4. A-(ii), B-(i), C-(iii)

Q. Very short answer type.
Which are true ribs, false ribs, and floating ribs?

Q. Assertion :Both true ribs and floating ribs are present in mammals. Reason: By nature, sternal ribs are true ribs as they possess all the characters of ribs.

1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
3. If the assertion is true but the reason is false
4. If both the assertion and reason are false

Q.

Is human a chordate?

Q. Number of pairs of floating ribs in human body is

1. 6 pairs
2. 5 pairs
3. 2 pairs
4. 3 pairs

Q. SHORT ANSWER TYPE
What is the difference between a true rib and a floating rib ?

Q. The floating ribs are

1. 11${}^{th}$ and 12${}^{th}$
2. 7${}^{th}$ and 8${}^{th}$
3. 9${}^{th}$ and 10${}^{th}$
4. 1${}^{st}$ and 2${}^{nd}$

Q. The branch of study dealing with joints is

1. Osteology
2. Chondrology
3. Craniology
4. Arthrology

Q. Bone marrow occurs in ________________.

1. Ribs and sternum
2. Ribs, sternum and cranium
3. Ribs and cranium
4. Only ribs

Q.

The cage like structure that protects the vital organs in our upper body and moves forward and outward during inhalation is ______.

1. rib cage

2. diaphragm

3. alveoli

4. lungs

Q. There are $11$ pairs of ribs in man.

1. True
2. False

Q.

Ribs are attached to

1. Scapula

2. Clavicle

3. Sternum

4. Ilium

Q.

Short note on rib cage.

Q. The total number of ribs in human body are

1. 10
2. 12
3. 24
4. 36