Question:

Acetabulum is present in

Updated On: Jul 27, 2022
  • pelvic girdle of rabbit
  • pectoral girdle of rabbit
  • both $1$ and $2$
  • none of these
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The Correct Option is A

Solution and Explanation

Pelvic girdle of rabbit is composed of two halves, united mid-ventrally at pubic symphysis. Anteriorly they are intimately connected to sacrum. Each half of pelvic griddle, or os innominatum, comprises of the usual three bones-ilijwri, ischium and pubis-which are fused together into a single innominate or hip bone. On outer middle side of innominate bone lies a deep cuplike cavity or acetabulum, which articulates with the head of femur. Ilium and ischium participate in the formation of acetabulum but a small cotyloid bone prevents pubis from reaching up to acetabulum.
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Notes on locomotion and movement

Concepts Used:

Locomotion and Movement

Locomotion

The movement of a creature from one place to another is known as locomotion. During the process, there is the action of appendages such as wings, limbs, and flagella. In some animals, like fish, whales, and sharks, locomotion upshots from a wave-like series of muscle contractions. Locomotion helps an organism in finding their food, avoid harsh weather conditions, escape from their predators, etc.

Some examples of locomotion are walking, running, swimming, etc. Movement, on the other hand, refers to any type of motion that need not be localized.

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Movement 

Movement is generally described as a state of changing the position from rest to motion or vice-versa. Movement can be both voluntary movement and involuntary movement. Movement helps an organism perform essential functions, such as pumping blood to the different parts of the body, etc.

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