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 zoology movement and locomotion in man bones and movements our skeletal system and the skin human skeleton system

Pelvic girdle consists of two coxal bones. Each coxal bone is formed by the fusion of three bones  (i), Ischium, and (ii) . At the point of fusion of the above bones, there is a cavity called (iii) to which the thigh bone articulates. The two halves of the pelvic girdle meet ventrally to form the pubic symphysis containing (iv) cartilage.

  1. (i) Clavicle (ii) Scapula (iii) Sternum (iv) Glenoid

  2. (i) Ulna (ii) Radius (iii) Tarsal (iv) Acromion

  3. (i) Sacrum (ii) Scapula (iii) Clavicle (iv) Glenoid

  4. (i) Ilium (ii) Pubis (iv) Acetabulum (v) Fibrous
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The pelvic girdle is composed of two coxal bones, each formed by the fusion of the ilium, ischium, and pubis. The acetabulum is the cup-like cavity where these three bones meet and the femur articulates, and the pubic symphysis contains fibrous cartilage.

Multiple choice zoology our skeletal system and the skin bones and movements human skeleton system movement and locomotion in man joints in the human body joints

The coxal of the pelvic girdle is formed by the fusion by

  1. Ilium, ischium and pubis

  2. Scapula and clavicle

  3. Ilium and scapula

  4. Ilium, scapula and ischium

  5. Clavicle and pubis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The hip bone or innominate bone or coxal bone is a large, flattened, irregularly shaped bone. It consists of three parts, the ilium, ischium, and pubis, which are fused in the adult. 

Multiple choice zoology movement and locomotion in man bones and movements our skeletal system and the skin human skeleton system

In newborn roofing bones of the skull leave soft gaps called as the ______

  1. Sutures

  2. Fontanelle

  3. Symphasis

  4. gap junctions
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
An infant's skull is made up of 6 separate cranial (skull) bones:
  • Frontal bone
  • Occipital bone
  • Two parietal bones
  • Two temporal bones
These bones are held together by strong, fibrous, elastic tissues called sutures. Also, the soft spaces between the bones that remain open in babies and young children are called fontanelles. Sometimes, they are called soft spots. These spaces are a part of normal development. 

So, the correct option is 'Fontanels'.

Multiple choice biology reproduction in living organisms regeneration asexual modes of reproduction reproduction in animals

Morphallaxis is

  1. Reconstruction of the whole body

  2. Growth of lost limb

  3. Healing of injury

  4. Regeneration with the help of blastema
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The reconstruction of an entire animal from a small fragment by reorganizing the existing cells, is called Morphallaxis. The regenerated animal is far smaller than the original one after the completion of the process. It grows to attain the normal size. eg:Hydra.

So, the correct option is ‘Reconstruction of the whole body’.

Multiple choice biology reproduction in living organisms regeneration asexual modes of reproduction reproduction in animals

In autotomy, regeneration of this limb takes place

  1. Eye

  2. Liver

  3. Bone

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

The spontaneous removal or casting off of a body part, especially when the organism is injured or under attack is autotomy or self amputation. It is recorded in loss legs in crabs, loss of tails in lizards, loss of viscera in Holothurian echinoderms.

So, the correct option is ‘Tail’.

Multiple choice biology locomotion and movement gait of animals basics of joints joints and type of joints skeleton, joints and muscles

The supportive structure of our pinna is also found in _______________.

  1. Tip of nose

  2. Ear ossicles

  3. Vertebrae

  4. Nails
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

  • The kind of tissue that forms the supportive structure in our pinna (external ears) is also found in tip of the nose. 
  • As External pinna is made up of elastic cartilage. 
  • It is passage towards middle ear. Hence, The supportive structure of our pinna is also found in the tip of the nose.
So, the correct answer is 'tip of nose'.

Multiple choice zoology musculo - skeleton system gait of animals basics of joints joints and type of joints skeleton, joints and muscles

A joint made for power is

  1. Knee joint

  2. Suture in cranium

  3. Joint between vertebrae

  4. Mandibular joint
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • The lower jaw is made up of a single bone called mandible.
  • The mandible is the longest and strongest bone in the face. It forms the lower jaw and holds the teeth in place.
  •  Movement of the lower jaw opens and closes the mouth and also allows for the chewing of food. The lower set of teeth in the mouth is rooted in the lower jaw.
  • The mandibular joint is a joint made for power. It connects the lower jaw bone to the skull.
  • So, the correct answer is 'Mandibular joint'.
Multiple choice zoology musculo - skeleton system gait of animals basics of joints joints and type of joints skeleton, joints and muscles

The characteristics and an example of a synovial joint in humans is :

  1. Characteristics - Fluid cartilage between two bones, limited movements, Examples - Knee joint

  2. Characteristics - Fluid filled between two joints, provides cushion, Examples - Skull bones

  3. Characteristics - Fluid filled synovial cavity between two bones, Examples - Joint between atlas and axis

  4. Characteristics - Lymph filled between two bones, limited movement, Examples - Gliding joint between carpals
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
All articulations between bones that help in a certain kind of movement, are placed at a distance from each other to prevent friction between them during movement. This space between the two bones is filled with synovial fluid that also helps reduce friction. For example the ball and socket joint of the pelvic girdle, the pivotal joint between the atlas and the axis
So, the correct answer is 'Characteristics - Fluid filled synovial cavity between two bones, Examples - Joint between atlas and axis'
Multiple choice zoology musculo - skeleton system gait of animals basics of joints joints and type of joints skeleton, joints and muscles

Which one of the following secretes a watery fluid for lubricating and cushioning the joint?

  1. Ligament

  2. Cartilage

  3. Tendon

  4. Synovial membrane
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Joints are points of contact between bones, or between bones and cartilages.
  • Synovial joints are characterized by the presence of a fluid-filled synovial cavity between the articulating surfaces of the two bones. These joints help in locomotion and many other movements.
  • The synovial cavity is covered by the synovial membrane which secretes a watery fluid called synovial fluid for the lubricating and cushioning joint.
  • So, the correct answer is 'Synovial membrane'.
Multiple choice zoology musculo - skeleton system gait of animals basics of joints joints and type of joints skeleton, joints and muscles

Synovial joints may be classified into subtypes according to

  1. Shape

  2. Amount of synovial fluid

  3. Number of bones

  4. Amount of cartilage
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Based on the movement ability, fibrous and cartilaginous joints are functionally classified as a synarthrosis or amphiarthrosis, the synovial joints are classified on the basis of shape.

So, the correct option is 'Shape'.