Biology · General Awareness

Skeletal and Muscular System

1,141 Questions

The skeletal and muscular system is a core topic in human biology. It covers the structure and function of bones, joints, and muscles. These concepts frequently appear in general science sections of various competitive exams. Master this topic to score higher.

Types of jointsHuman body bonesSkeletal fracturesMuscle anatomy

Skeletal and Muscular System Questions

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

Which of following helps in rotation of the neck?

  1. Atlas

  2. Axis

  3. Cervical

  4. Occipital condyle of skull
Reveal answer Fill a bubble to check yourself
B Correct answer
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.

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

Which one of the following is a flat bone?

  1. Carpal

  2. Vertebrae

  3. Incus

  4. Ribs
Reveal answer Fill a bubble to check yourself
D Correct answer
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'.
Multiple choice biology our skeletal system and the skin bones and movements joints in the human body joints

The main types of bones in terms of shape are

  1. Flat bones

  2. Irregular bones

  3. Short bones

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
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'.
Multiple choice biology our skeletal system and the skin bones and movements joints in the human body joints

Which of the following human bones is the knee bone?

  1. Stapes

  2. Clavicle

  3. Patella

  4. Phalanx
Reveal answer Fill a bubble to check yourself
C Correct answer
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 )

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

The smallest bone in mammals is

  1. SeptomaxiIIary

  2. Dentary

  3. Femur

  4. Stapes
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

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

Epiphyseal disks, which are present at the ends of long bones, are responsible for________________.

  1. Bone elongation

  2. Growth of thickness of the bone

  3. Remodeling the shape of bone

  4. Formation of Haversian system
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Answer is option A i.e. "Bone elongation"
Epiphyseal disk is also called as growth plate. Epiphyseal plate (growth plate), is the region between the diaphysis and epiphysis. Epiphyseal plate/ disk is responsible for the lengthwise growth of long bones. Long bones continue to lengthen, potentially until adolescence, through the addition of bone tissue at the epiphyseal plate

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

Which bones protects the spinal cord? 

  1. Flat

  2. Irregular

  3. Long

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Irregular bones have complex shape and hence, cannot be classified as long, short or flat. Their shape is due to the function they carry out it the body. They provide mechanical support to the body but also protect the spinal cord. Therefore, (b) is the correct answer. 

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

In man ribs are attached to

  1. Clavicle

  2. Ileum

  3. Sternum

  4. Scapula
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The first seven pair are attached directly to the sternum 8th, 9th and I0th pairs are attached indirectly to the sternum, and the last two pairs of ribs are called floating ribs because their anterior ends are not attached to either the sternum or the cartilage of another ribs.