Tag: basics of joints

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Multiple choice biology body movements basics of joints joints and type of joints skeleton, joints and muscles

Major functions of skeleton are

  1. Support

  2. Protection

  3. Storage of ions

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The skeleton serves a number of functions in vertebrates:

(1) The skeleton forms a rigid framework, which gives support to the body against gravity.
(2) The skeleton encloses the more vital organs of the body to protect them from injury.
(3) Bones contain deposits of calcium phosphate and calcium carbonate. These may be released into the blood if needed for use elsewhere in the body, but are later replaced. This helps in regulating calcium and phosphorus level of blood. 
So, the correct answer is option D.

Multiple choice biology body movements basics of joints joints and type of joints skeleton, joints and muscles

The brain is protected by the 

  1. Vertebrae

  2. Cranium

  3. Ribs

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

  • The skull is composed of two parts: the cranium and the mandible.
  •  In the human, cranium has two parts the neurocranium and the viscerocranium. 
  • The neurocranium forms the cranial cavity that surrounds and protects the brain and brainstem. 
  • The neurocranium consists of the occipital bone, two temporal bones, two parietal bones, the sphenoid, ethmoid, and frontal bones—all are joined together with sutures. Hence, The brain is protected by the Cranium.
So, the correct answer is 'Cranium'.