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SS1: BIOLOGY - 2ND TERM

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  1. Cellular Respiration | Week 1
    5 Topics
    |
    1 Quiz
  2. Excretion & Growth in Living Cells | Week 2
    4 Topics
    |
    1 Quiz
  3. Irritability | Week 3
    6 Topics
    |
    1 Quiz
  4. Reproduction of Organisms | Week 4
    5 Topics
    |
    1 Quiz
  5. Tissues and Supporting Systems | Week 5
    6 Topics
    |
    1 Quiz
  6. Animal Nutrition | Week 6
    6 Topics
    |
    1 Quiz
  7. Enzymes | Week 7
    1 Topic
    |
    1 Quiz
  8. Heterotrophic Nutrition | Week 8
    3 Topics
    |
    1 Quiz
  9. The Mammalian Dentition | Week 9
    3 Topics
    |
    1 Quiz
  10. Basic Ecological Concepts | Week 10
    3 Topics
    |
    1 Quiz
  11. Local Biotic Communities | Week 11
    4 Topics
    |
    1 Quiz
  12. Major Biomes of the World | Week 12
    5 Topics
    |
    1 Quiz



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Topic Content:

  • Skull
  • Vertebral Column
  • Structure of a Typical Vertebra
  • Characteristics of Various Vertebrae
  • Table Showing Distribution of Vertebrae
  • Cervical Vertebrae
  • Characteristics of Atlas (First Cervical Vertebra)
  • Characteristics of the Axis (The Second Cervical Vertebra)
  • Thoracic Vertebrae
  • Lumbar Vertebrae
  • Sacral Vertebrae
  • Caudal Vertebrae
  • The Ribs
Axial skeleton
Axial skeleton

Skull:

The Skull is the bone of the head that protects the brain and gives the head shape. It is made up of three parts;

(i) The Cranium or Brainbox – This houses the brain.

(ii) Facial Skeleton – The bones that hold the nose, eyes, and cheek muscles.

Axial Skeleton - Skull

(iii) Jaws – These are made up of the upper jaw known as the maxilla and lower jaw known as the mandible and they hold the teeth.

skull

Vertebral Column:

Forms the backbone and is made up of many individual bones/vertebrae which are held one to the other by ligaments with comprehensible pads called inter-vertebrae discs.

The vertebral column performs the following functions:

 

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