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

Ilium of pelvic girdle is articulated with sacrum for

  1. Bending

  2. Jumping

  3. Support

  4. Running
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
The largest part of the coaxal bone of pelvic girdle is ilium that connects at the posterior side with the sacrum at a sacroiliac joint. This articulation serves to support the upper body by sequestering the weight to lower extremes of the body. The correct answer is C.
Multiple choice zoology movement and locomotion in man bones and movements our skeletal system and the skin human skeleton system

Three of the following pairs of the human skeletal parts are correctly matched with their respective inclusive skeletal category and one pair is not matched. Identify the non-matching pair.

  1. Malleus and stapes $\rightarrow$ Ear ossicles
  2. Sternum and ribs $\rightarrow$ Axial Skeleton
  3. Clavicle and glenoid cavity $\rightarrow$ Pelvic girdle
  4. Humerus and ulna $\rightarrow$ Appendicuar skeleton
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The ear ossicles are made up of three bones called as malleus, incus, and stapes. They vibrate to conduct the sound waves from the outer ear to inner ear and then to the brain. There are two forms of the skeleton. The axial skeleton includes all the bones along the body axis (lengthwise). Sternum and ribs are a part of the axial skeleton. The appendicular skeleton includes all the bones that form the upper and lower limbs, and the shoulder and pelvic girdles. Clavicle and scapula are the parts of the pectoral girdle.

So, the correct answer is option C. 

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

Which is the part of pectoral girdle?

  1. Glenoid cavity

  2. Sternum

  3. Ilium

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

The glenoid cavity is a part of the shoulder girdle or pectoral girdle. It is a shallow pyriform, articular surface, which is located on the lateral angle of the scapula. The sternum, commonly known as the breastbone, is a long, narrow flat bone that serves as the keystone of the rib cage and stabilizes the thoracic skeleton. The ilium is the uppermost and largest bone of the pelvis and appears in most vertebrates including mammals and birds, but not bony fish. The acetabulum is the socket of the hipbone, into which the head of the femur fits. Thus, option A is correct.

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

Locomotion is possible due to ________ skeleton.  

  1. Appendicular

  2. Axial

  3. Skull

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The appendicular skeleton (126 bones) is formed by the pectoral girdles, the upper limbs, the pelvic girdle or pelvis, and the lower limbs. Their functions are to make locomotion possible and to protect the major organs of digestion, excretion and reproduction.

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

The external or internal framework which provides support to the body is called __________.

  1. Supportive chord

  2. Tendons

  3. Skeleton

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

The external or internal framework which provides support to the body is called skeleton. It is of two types exoskeleton and endoskeleton. The lower group and animals possesses only exoskeleton for protection e.g. Cockroach while higher animals possess both e.g. Fish.

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

Choose the word that is different from the others in the following and give reason.

  1. Clavicle

  2. Skull

  3. Femur

  4. Ball and socket
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • A joint or articulation (or articular surface) is the connection made between bones in the body which link the skeletal system into a functional whole. They are constructed to allow for different degrees and types of movement.
  • Ball and socket joint is a type of freely movable joint. For example, shoulder and hip joints.
  • Ball and socket are different from the others in the following because ball and socket is a type of joint which is an articulation between two or more bones whereas the clavicle, skull, and femur are individual bones present in the body.
  • So, the correct answer is 'Ball and socket'.
Multiple choice zoology movement and locomotion in man bones and movements our skeletal system and the skin human skeleton system

Clavicle is a constituent of

  1. Pectoral girdle

  2. Fore limbs

  3. Hind limbs

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

The clavicle is the constituent of pectoral griddle or shoulder gridle. It is called as collar bone which serves as a rigid support from which the scapula and free limb suspended. It is an arrangement that keeps the upper limb away from the thorax so that the arm has maximum range of movement. So, the correct answer is 'pectoral gridle'.

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

Half of pelvic girdle is known as 

  1. Os-innominatum

  2. Ilium

  3. Synsacrum

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

Os Innominatum is a large irregular bone that forms the bony pelvis. Os-innominatum is also called as hip bone. Each pelvic girdle is made of a pair of hip bones which are identical with each other and each made of pubis, ilium and ischium. So, the correct answer is 'os innominatum'.

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

Obturator foramen occurs in

  1. Pelvic girdle

  2. Pectoral girdle

  3. Cranium

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

The pelvic girdle is formed by a pair of bone which is the hip bone or coxal bone. The large opening in the anteroinferior hip bone between the ischium and pubis is the obturator foramen through which nerves and blood vessels pass. So, the correct answer is 'Pelvic girdle'.

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

Two halves of pelvic girdle are joined together by

  1. Pubic symphysis

  2. Ischiac symphysis

  3. Ischibpubic symphysis

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

Each pelvic girdle is composed of two hip bones. Pubic symphasis is a specialized joint where the pubis of one hip bone joins with the pubis of opposite hip bone. So the two halves of pelvic girdle are joined together by pubic symphasis. So, the correct answer is 'Pectoral girdle'. 

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

Number of bones in hindlimb of human is

  1. 21

  2. 24

  3. 30

  4. 14
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • The bones of the limbs(forelimb and hindlimb) along with their girdles (pectoral and pelvic) constitute the appendicular skeleton.
  • The bones of the hind limb are femur (thigh bone – the longest bone), tibia and fibula, tarsals (ankle bones – 7 in number), metatarsals (5 in number) and phalanges (digits – 14 in number). Hence number of bones in the hind limb of human is 30.
  • So, the correct answer is '30'.
Multiple choice zoology movement and locomotion in man bones and movements our skeletal system and the skin human skeleton system

Socket in pelvic girdle in which head of femur articulates is formed by fusion of

  1. Ischium and pubis

  2. Ilium and pubis

  3. Ilium, and ischium

  4. Ileum, ischium and pubis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The pelvic girdle consists of paired hip bones each is made up of three bones which are ilium, ischium and pubis. These three bones unite in early adulthood at a triangular suture in the acetabulum and form the cup-shaped socket that forms the hip joint with the head of the femur (thigh bone). So, the correct answer is 'Ileum, ischium and pubis'.

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

Acetabulum is a part of

  1. Pelvic girdle

  2. Pectoral girdle

  3. Fore arm

  4. Upper arm
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • Pelvic girdle consists of two coxal bones. Each coxal bone is formed by the fusion of three bones i.e each half of pelvic girdle is made up of ilium, ischium, and pubis.
  •  At the point of fusion of the ilium, ischium and pubis bones there is a cavity called acetabulum to which the thigh bone(femur) articulates. Hence acetabulum is a part of the pelvic girdle.
  • So, the correct answer is 'Pelvic girdle'.
Multiple choice zoology movement and locomotion in man bones and movements our skeletal system and the skin human skeleton system

Part of the body having a single pair of bones is

  1. Pelvic girdle

  2. External ear

  3. Wrist

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

The pelvic girdle consists of a single pair of bones, called hip bones. They are connected at the front by cartilage called the pubic symphysis and they are attached to the sacrum at the back. Each hip bone is made up of three bones which are ilium, ischium and pubis. So, the correct answer is 'Pelvic girdle'.