Tag: bones and movements

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Questions Related to bones and movements

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

Ilium is the part of

  1. Small intestine

  2. Pectoral girdle

  3. Pulmonary tract

  4. Pelvic girdle
Reveal answer Fill a bubble to check yourself
D 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 ilium is the part of 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

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'.