Rib Cage

Q.

(i) With respect to rib cage, explain the following

bicephalic ribs

(ii)

With respect to rib cage, explain the following

true ribs

(iii) With respect to rib cage, explain the following

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

Q. The vertebrochondral ribs are attached to

1. sternum
2. 7th rib
3. thoracic vertebrae
4. 11th rib

Q. Assertion: The 8th, 9th and 10th pairs of ribs are called false ribs
Reason: They are not directly attached to the sternum

1. Both assertion and reason are false
2. Both assertion and reason are true but reason is not the correct explanation of assertion
3. Both assertion and reason are true and reason correctly explains assertion
4. Assertion is true but reason is false

Q. The number of floating ribs in the human body is

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

Q. Intercostal muscles are found between/attached to

1. lungs
2. ribs
3. vertebrae
4. diaphragm

Q. _________ pairs of ribs are called false ribs.

1. First 7 pairs of ribs
2. 8th, 9th and 10th pair of ribs
3. None of the above
4. 11th and 12th pair of ribs

Q. Ribs attached to sternum are

1. First seven pairs
2. First ten pairs
3. First five pairs
4. All twelve pairs

Q. Ribs 11 and 12 are called ribs because they have no connection to the sternum.

1. intercostal
2. true
3. false
4. floating

Q. Assertion: The 8th, 9th and 10th pairs of ribs are called false ribs
Reason: They are not directly attached to the sternum

1. Both assertion and reason are true and reason correctly explains assertion
2. Both assertion and reason are true but reason is not the correct explanation of assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false

Q. The U- shaped bone present at the base of the buccal cavity is

1. ethmoid bone
2. conchae
3. incus
4. hyoid

Q. Which of the following form the thoracic cage of a human being?

1. Ribs
2. Costal cartilage
3. Sternum
4. Skull

Q. Intercostal muscles are found in

1. Fingers
2. Thoracic ribs
3. Femur
4. Radius-Ulna

Q. Match the following:
$\begin{array}{cc}\text{Type of ribs}& \text{Location}\\ \text{1. True ribs}& \text{a. 8th, 9th and 10th pair}\\ \text{2. False ribs}& \text{b. 11th and 12th pair}\\ \text{3. Floating ribs}& \text{c. First 7 pairs}\end{array}$

1. 1-c, 2-b, 3-c
2. 1-a, 2-c, 3-b
3. 1-a, 2-b, 3-c
4. 1-c, 2-a, 3-b

Q.

How many true ribs are present in the rib cage?

1. 7

2. 2

3. 10

4. 12

Q.

Ribs are attached to

(a) scapula (b) sternum (c) clavicle (d) ilium

Q. Dorsally ribs are connected to ________

1. cervical vertebrae
2. thoracic vertebrae
3. coccyx vertebrae
4. lumbar vertebrae

Q. Which of the following form the thoracic cage of a human being?

1. Ribs
2. Costal cartilage
3. Sternum
4. Skull

Q. Inter-vertebral disc is a

1. Fibro-cartilage that lies between adjacent vertebrae in the vertebral column
2. Hyaline cartilage in the nose
3. Hyaline cartilage in the trachea
4. Hyaline cartilage in the ear

Q. Read the assertion and reason carefully to mark the correct option in question.
Assertion: Cervical vertebrae, ribs and sternum together form the rib cage.
Reason: The bones of the limbs along with the girdles constitute the axial skeleton.

Q.

How many true ribs are present in the rib cage?

1. 10

2. 7

3. 2

4. 12

Q. Assertion :8th, 9th and 10th pair of ribs are called vertebro chondral ribs. Reason: They articulate directly with the stemum.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. Intercostal muscles are found in

1. Fingers
2. Thoracic ribs
3. Femur
4. Radius-Ulna

Q. The number of floating ribs in the human body is

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

Q. Match the following and mark the correct option.

Column I Column II

(a) Sternum (i) Synovial fluid
(b) Glenoid cavity (ii) Vertebrae
(c) Freely movable joint (iii) Pectoral girdle
(d) Cartilaginous Flat bone joint (iv) Flat bone

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

Q. Ribs 11 and 12 are called ribs because they have no connection to the sternum.

1. intercostal
2. true
3. false
4. floating

Q. Intercostal muscles are found in

1. Fingers
2. Thoracic ribs
3. Femur
4. Radius-Ulna

Q. In isometric contraction ;-

1. Tone changed but length same
2. Length changed but tone same
3. Length and tone both same
4. Length and tone both change

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

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