Tag: our skeletal system and the skin

Questions Related to our skeletal system and the skin

Mark the odd one w.r.t girdle bones

  1. Clavicle

  2. Ischium

  3. Ileum

  4. Pubis


Correct Option: A
Explanation:

Bones in the shoulder consists of the clavicle, scapula, and coracoid.

So, the correct option is 'Clavicle'.

Which of the following components is a part of the pectoral girdle?

  1. Acetabulum

  2. Glenoid cavity

  3. Ilium

  4. Sternum


Correct Option: B
Explanation:

The shoulder girdle or pectoral girdle is the set of bones in the appendicular skeleton which connects to the arm on each side. In humans, it consists of the clavicle and scapula. There are three joints in the pectoral girdle: sternoclavicular, acromioclavicular, and glenohumeral. 

Out of these, the glenohumeral joint joins the head of the humerus to the glenoid cavity. It’s a ball-and-socket joint that allows for a wide range of movement for the arm. 
So, the correct option is 'Glenoid cavity'.

Human vertebral column consists of 33 vertebrae and______bones.

  1. 33

  2. 26

  3. 27

  4. 29


Correct Option: B
Explanation:

The human vertebral column  consists of 33 vertebrae: 24 presacral vertebrae (7 cervical, 12 thoracic, and 5 lumbar) followed by the sacrum (5 fused sacral vertebrae) and the coccyx (4 frequently fused coccygeal vertebrae). The spine, also known as the vertebral column or spinal column, is a column of 26 bones in an adult body — 24 separate vertebrae interspaced with cartilage, and then additionally the sacrum and coccyx.


So the correct option is '26'.

The vertebral column is connected to the pelvic girdle in the:

  1. coccygeal region

  2. sacral region

  3. cervical region

  4. lumbar region


Correct Option: B
Explanation:

The vertebral column is connected to the pelvic girdle in the 'sacral region'.

In thoracic cavity of man which one is present

  1. Lungs only

  2. Lungs + Heart

  3. Lungs + heart + stomach

  4. Hearts only


Correct Option: B
Explanation:
The thoracic cavity is also known as the chest cavity. It is a chamber in the body of the animal that is protected by the ribcage, skin and the muscles.
The essential organs that are present in the thoracic cavity are the lungs, the heart, a small part of the oesophagus and various lymph nodes and blood vessels.
So, the correct option is 'lungs+heart'

Appendicular skeleton includes

  1. girdles and their limbs

  2. vertebrae

  3. skull and vertebral column

  4. ribs and sternum.


Correct Option: A
Explanation:

Appendicular skeleton includes 'limbs along with their girdles'.

Identify the incorrectly matched pair.  

  1. Pair of skeletal parts - Sternum and ribs

    Category - Axial skeleton

  2. Pair of skeletal parts - Clavicle and glenoid cavity

    Category - Pelvic girdle

  3. Pair of skeletal parts - Humerus and ulna

    Category - Appendicular skeleton

  4. Pair of skeletal parts - Malleus and stapes

    Category - Ear ossicles


Correct Option: B
Explanation:

Clavicle and glenoid cavity are related to pectoral girdle but not pelvic girdle. So, the correct answer is (b).

Winch of the following components is a part of the pectoral girdle ? 

  1. Sternum

  2. Acetabulum

  3. Glenoid cavity

  4. Ilium


Correct Option: C
Explanation:

'Glenoid cavity' is a part of the pectoral girdle. So, the correct answer is (c).

The shoulder blade is made of :

  1. clavicle

  2. humerus

  3. Ilium

  4. scapula


Correct Option: D
Explanation:

The shoulder blade is made of 'scapula'. So, the correct answer is (d).

Acetabulum is located in:

  1. collar bone

  2. hip bone

  3. shoulder bone

  4. thigh bone


Correct Option: B
Explanation:

The acetabulum is located in 'hip bone'. So, the correct answer is (b).