Tag: our skeletal system and the skin

Questions Related to our skeletal system and the skin

Which of the following does not have corresponding bones?

evs our skeletal system and the skin bones and movements joints in the human body joints

  1. Pelvic and pectoral girdle

  2. Atlas and coccyx

  3. Carpals and tarsals

  4. Humerous and femur

Show answer
Correct Option: B
Explanation:

The atlas ($C _1$) is the most superior (first) cervical vertebra of the spine. The atlas's chief peculiarity is that it has no body. It is ring like and consists of an anterior and a posterior arch and two lateral masses. The coccyx commonly referred to as the tailbone is the final segment of the vertebral column in humans and apes. It comprises of three to five separate or fused coccygeal vertebrae below the sacrum. As, both atlas and coccyx are the two first and last bones respectively of the vertebral column they do not have corresponding bones.

So, the correct answer is 'Atlas and coccyx'

Find out the correct order of number of bones in the parts of skull such as cranial bone, facial bone, hyoid bone and middle ear bone respectively

evs our skeletal system and the skin bones and movements joints in the human body joints

  1. 14, 8, 1 and 3

  2. 3, 8, 14 and 1

  3. 14, 8, 3 and 1

  4. 8, 3, 14 and 1

  5. 8, 14, 1 and 3

Show answer
Correct Option: E
Explanation:

Of the 206 bones in the human body, 22 bones are in the skull. The skull consists of 8 cranial bones and 14 facial bones. The hyoid bone (lingual bone) is a horseshoe-shaped bone situated in the anterior midline of the neck between the chin and the thyroid cartilage. The middle ear contains three tiny bones known as the ossicles: malleus, incus, and stapes.

Total number of skull bones in rabbits are

evs our skeletal system and the skin bones and movements joints in the human body joints

  1. 53

  2. 40

  3. 39

  4. 29

Show answer
Correct Option: A
Explanation:

Skull is the part of bony endoskeleton, which protects the brain. Skull is made up of two parts- cranial and facial. In humans, skull consists of 29 bones. Rabbit skull is made up of 53 bones.

Which of following helps in rotation of the neck?

evs our skeletal system and the skin bones and movements joints in the human body joints

  1. Atlas

  2. Axis

  3. Cervical

  4. Occipital condyle of skull

Show answer
Correct Option: B
Explanation:

There are 7 cervical vertebrae, $C _1$ - $C _7$.  First cervical vertebrae, i.e., atlas and second cervical vertebrae, i.e., axis, and seventh vertebrae are modified; third through sixth are typical; all contain transverse foramina. Atlas supports head, permits "yes" motion of head at joint between skull and atlas; axis permits "no" motion, i.e., rotation movement at joint between axis and atlas.

Which one of the following is a flat bone?

biology our skeletal system and the skin bones and movements joints in the human body joints

  1. Carpal

  2. Vertebrae

  3. Incus

  4. Ribs

Show answer
Correct Option: D
Explanation:
  • Flat bones are made up of a layer of spongy bone between two thin layers of compact bone. They have a flat shape, not rounded
  • The flat bones are the occipital, parietal, frontal, nasal, lacrimal, vomer, hip bone (coxal bone), sternum, ribs, and scapulae.
  • Hence ribs are flat bones.
  • So, the correct answer is'Ribs'.

Which of the following is responsible for the protection of soft tissues?

biology our skeletal system and the skin bones and movements joints in the human body joints

  1. Long bones

  2. Flat bones

  3. Irregular bones

  4. Both A and C

Show answer
Correct Option: B

The main types of bones in terms of shape are

biology our skeletal system and the skin bones and movements joints in the human body joints

  1. Flat bones

  2. Irregular bones

  3. Short bones

  4. All of the above

Show answer
Correct Option: D
Explanation:
  • There are 6 Types of bone. They are classified by shape as:
  1. Long Bones.
  2. Short Bones.
  3. Flat Bones.
  4. Irregular Bones.
  5. Sesamoid Bones.
  6. Sutural Bones. Hence, The main types of bones in terms of shape are flat bones, Irregular bones and Short bones.
So, the correct answer is 'All of the above'.

Which of the following human bones is the knee bone?

biology our skeletal system and the skin bones and movements joints in the human body joints

  1. Stapes

  2. Clavicle

  3. Patella

  4. Phalanx

Show answer
Correct Option: C
Explanation:

The patella, also known as the kneecap, is a thick, circular-triangular bone which articulates with the femur (thigh bone) and covers and protects the anterior articular surface of the knee joint. So, the correct option is C. ( Patella )

The spaces in between the trabeculae of long bone,contains highly vascularised red bone marrow which take part in forming erythrocytes and granular leucocytes.It is not present in which of the following?

biology our skeletal system and the skin bones and movements joints in the human body joints

  1. Proximal ends of long bones

  2. Vertebrate

  3. Skull bones

  4. Calvicles

Show answer
Correct Option: C

The smallest bone in mammals is

biology our skeletal system and the skin bones and movements joints in the human body joints

  1. SeptomaxiIIary

  2. Dentary

  3. Femur

  4. Stapes

Show answer
Correct Option: D
Explanation:

The stapes is the third bone of the three ossicles in the middle ear. The stapes is a stirrup-shaped bone, and the smallest in the human body. It rests on the oval window, to which it is connected by an annular ligament. Thus, option D is correct.