Biology · General Awareness

Skeletal and Muscular System

1,098 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 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.

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

The second vertebra, the axis which helps in a rotatory
movement of the head has a knob like process called

  1. Hypapophysis

  2. Metapophysis

  3. Odontoid process

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

First cervical vertebra is called atlas. Second cervical vertebra is known as axis. The atlas supports the head. Axis has a peg like process called Odontoid  process / Dens.

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

What is the difference between the bone of rabbit and that
of frog

  1. In the bone of rabbit haversian canal is foun

  2. Yellow marrow is found

  3. Osteocytes are of different types

  4. Bone of frog is spongy
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Within the matrix of the compact bone of the shaft of long mammalian bones. (like humerus, femur, tibia), a network of branching canals (called haversian canals) is present in which lie the blood vessels.

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

Extremities of long bones possess 

  1. Calcified cartilage

  2. Fibrous cartilage

  3. Elastic cartilage

  4. Hyaline cartilage
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Long bones are hard, dense bones that provide strength, structure, and mobility. For example, The thigh bone (femur) is a long bone.
  • Articular cartilage is hyaline cartilage that is found on the articular surfaces of bone i.e where bones meet and form joints.
  • Hence  Extremities of long bones possess Hyaline cartilage(articular cartilage).
  • So, the correct answer is 'Hyaline cartilage'.
Multiple choice biology our skeletal system and the skin bones and movements joints in the human body joints

Long bones function in

  1. Support

  2. Support, erythrocyte and leucocyte synthesis

  3. Support and erythrocyte synthesis

  4. Erythrocyte formation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Long bones are hard, dense bones that provide strength, structure, and mobility, typically found in the upper and lower extremities (arms and legs). For example, the femur (thigh bone) is a good example of a long bone.
  • Haemopoiesis(production of blood cells) takes place in epiphyses of long bones.
  • As long bones are hard and dense they provide support and they function as the synthesis of erythrocyte and leucocyte due to the presence of red bone marrow.
  • So, the correct answer is 'Support, erythrocyte, and leucocyte synthesis',.
Multiple choice biology our skeletal system and the skin bones and movements joints in the human body joints

Yellow bone marrow occurs in medullar cavity of

  1. Short bones

  2. Spongy bones

  3. Long bones

  4. All the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • The central cavity of long bone shafts where red bone marrow and/or yellow bone marrow(adipose tissue) is stored is called the medullary cavity.
  • Hence yellow bone marrow occurs in the medullary cavity of long bones.
  • The amount of yellow bone marrow increases with age.
  • So, the correct answer is 'Long bones'.