Tag: our skeletal system and the skin

Questions Related to our skeletal system and the skin

Which of the following bones form a link between axial and appendicular skeleton ?

  1. First rib

  2. Clavicle

  3. Scapula

  4. Both (a) and (b)


Correct Option: D
Explanation:

First rib and clavicle forms a link between axial and appendicular skeleton. So, the correct answer is (d).

Acromion process is characteristically found in the __________ of mammals.

  1. pectoral girdle

  2. sperm

  3. pelvic girdle

  4. skull


Correct Option: A
Explanation:

Acromion process is characteristically found in the 'pectoral girdle'.

Collar bone is known as :

  1. scapula

  2. clavicle

  3. pelvic girdle

  4. chevron bone


Correct Option: B
Explanation:

The collar bone is also known as 'clavicle'. So, the correct answer is (b).

Pelvic girdle consists of two coxal bones. Each coxal bone is formed by the fusion of three bones  (i), Ischium, and (ii) . At the point of fusion of the above bones, there is a cavity called (iii) to which the thigh bone articulates. The two halves of the pelvic girdle meet ventrally to form the pubic symphysis containing (iv) cartilage.

  1. (i) Clavicle (ii) Scapula (iii) Sternum (iv) Glenoid 

  2. (i) Ulna (ii) Radius (iii) Tarsal (iv) Acromion

  3. (i) Sacrum (ii) Scapula (iii) Clavicle (iv) Glenoid

  4. (i) Ilium (ii) Pubis (iv) Acetabulum (v) Fibrous


Correct Option: D

The coxal of the pelvic girdle is formed by the fusion by

  1. Ilium, ischium and pubis

  2. Scapula and clavicle

  3. Ilium and scapula

  4. Ilium, scapula and ischium

  5. Clavicle and pubis


Correct Option: A
Explanation:

The hip bone or innominate bone or coxal bone is a large, flattened, irregularly shaped bone. It consists of three parts, the ilium, ischium, and pubis, which are fused in the adult. 

The coxal bone of the-pelvic girdle Is formed by the fusion of 

  1. Ilium, ischium, and pubis

  2. scapula and clavicle

  3. ilium and scapula

  4. ilium, scapula and ischium


Correct Option: A
Explanation:

The coxal bone of the pelvic girdle is formed by the fusion of three bones - 'ilium, ischium and pubis'.

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


Column I(Skeletal Part)   Column II(Number of bones)
A.Cranium   (i) 22
B. Skull(Cranial and facial bones)  (ii) 8
C. Face (iii) 14
D. Hind limb  (iv) 24
E. Ribs (v)  30

  1. A-(i), B-(ii), C-(iii), D-(v), E-(iv)

  2. A-(ii), B-(i), C-(iii), D-(v), E-(iv)

  3. A-(i), B-(ii), C-(iii), D-(iv), E-(v)

  4. A-(v), B-(iv), C-(iii), D-(ii), E-(i)


Correct Option: B

In newborn roofing bones of the skull leave soft gaps called as the ______

  1. Sutures

  2. Fontanelle

  3. Symphasis

  4. gap junctions


Correct Option: B
Explanation:
An infant's skull is made up of 6 separate cranial (skull) bones:
  • Frontal bone
  • Occipital bone
  • Two parietal bones
  • Two temporal bones
These bones are held together by strong, fibrous, elastic tissues called sutures. Also, the soft spaces between the bones that remain open in babies and young children are called fontanelles. Sometimes, they are called soft spots. These spaces are a part of normal development. 

So, the correct option is 'Fontanels'.

Tube feet is the locomatory organ of

  1. Starfish

  2. Jellyfish

  3. Crop fish

  4. Silverfish


Correct Option: A
Explanation:

Tube feet move the star fish around. They are part of the water vascular system.

Which of the following &fare not correctly matched pairs ?

(i) Ball and socket joint - Between humerus and pectoral girdle
(ii) Pivot joint - Between carpal and metacarpal
(iii) Saddle joint - Between atlas and axis 
(iv) Gliding joint  - Between the carpals
(v) Fibrous joint - In flat skull bones
  1. (ii) and (iii)

  2. (i) and (iv)

  3. (v) Only

  4. (ii) Only


Correct Option: A
Explanation:

In the given table options i and iv are correctly matched.

So, the correct option is '(i) and (iv)'.