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

Human skeleton altogether contains 206 bones. Some bones are fused in adults, an example of fused bones would be   

  1. Coccyx

  2. Ear ossicles

  3. Carpals

  4. Metacarpals
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • The coccyx, commonly referred to as the tailbone, is the final segment of the vertebral column in all apes, and analogous structures in certain other mammals.
  •  Depending on an individual's development, the coccyx may consist of three to five different bones connected by fused or semi-fused joints and/or disc-like ligaments.
  •  The individual bones also fuse together to form a single coccyx throughout adulthood. Hence, Human skeleton altogether contains 206 bones. Some bones are fused in adults, an example of fused bones would be  Coccyx.
    • So, the correct answer is 'Coccyx'.
Multiple choice biology our skeletal system and the skin bones and movements joints in the human body joints

Smallest bone in the body of humans is 

  1. Incus

  2. Stapes

  3. Malleus

  4. Maxilla
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Stapes is the third bone of ear ossicles in the middle ear. It is the smallest bone measuring 3*2.5mm roughly. 

Incus and malleus are the other two ear ossicles in middle ear larger than stapes.
The maxilla is the bone that holds the upper teeth. It is bigger than Stapes.
So the correct option is B.

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

Which of the following bones are the longest in the body?

  1. Two fibulas

  2. Two femurs

  3. Two tibias

  4. Two ulnas
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The head of the femur articulates with the acetabulum in the pelvic bone forming the hip joint, while the tibia and kneecap forming the knee joint. By most measures, the femur is the strongest bone in the body. The femur is also the longest bone in the human body.

So, the correct option is 'Two femurs'.

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

Haversian canal is present in all of the following except

  1. Diaphysis (compact) bone of rabbit

  2. Epiphysis (spongy bone) of rabbit

  3. Diaphysis (compact) bone of frog

  4. Both (2) & (3)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Haversian Canals are the features of the compact long bones of mammals. These are centrally located and supply nerves and blood vessels to the osteocytes of bones. The Epiphysis of rabbit and diaphysis of frog do not show the Haversian Canals.

Hence, the correct answer is 'Both (2) and (3)'.

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

Which of the following statements are incorrect regarding a normal human?
(i) The skull is dicondylic.
(ii) Metacarpals are five in numbers.
(iii) Patella is a cup-shaped bone covering the knee dorsally.
(iv) Scapula is a large triangular flat bale, situated on the ventral side of the thorax.
(v) The pelvic girdle has two coxal bones.

  1. (i) and (v)

  2. (i) and (ii)

  3. (ii) and (v)

  4. (iii) and (iv)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Following statements are incorrect regarding a normal human: 

(i) Patella is a cup-shaped bone covering the knee dorsally.
(ii) Scapula is a large triangular flat bone, situated on the ventral side of the thorax.
So, the correct answer (d).

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

In birds, 6-10 caudal vertebrae are usually fused to form

  1. Sesamoid bone

  2. Odontoid process

  3. Plowshare bone

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

The body of the bird is adapted for flight. One of the key adaptions for this is the fusing of bones into single ossification.The compound structure present in the birds vertebral column is called the synsacrum and is formed by the fusion of 14 to 16 vertebrae. The last part of the synsacrum is formed by the fusion of the caudal vertebrae

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

Patella is a kind of

  1. Cartilage bone

  2. Membrane bone

  3. Cartilage

  4. Sesamoid bone
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A bone which is embedded in the tendon is known as sesamoid bone. Patella is a the largest sesamoid bone which articulates with the femur (thigh bone) and covers and protects the anterior articular surface of the knee joint. 

So, the correct answer is 'Sesamoid bone'.