Key Points
Key Points: Different regions of Brain and its functions:
| Part | Description | Location | Structure | Main Functions |
|---|---|---|---|---|
| Cerebrum | Largest part of the brain, also called the large brain | Upper part of cranial cavity | Two hemispheres with many convolutions | Voluntary actions; intelligence, memory, thinking, decision-making |
| Cerebellum | Smaller part of brain situated below cerebrum | Back of cranial cavity | Shallow grooves on surface | Coordination of movements; body balance |
| Medulla Oblongata | Hindmost part of brain connecting brain to spinal cord | Lower brainstem | Pyramidal structures; continuous with spinal cord | Controls breathing, heartbeat, swallowing, coughing |
| Spinal Cord | Long cylindrical part of CNS extending from medulla | Vertebral column | Ends as filum terminale | Reflex actions; conduction of impulses to and from brain |
Important Questions [9]
- Name the Types of Movements in Plants. Give One Example of Each Movement.
- Explain the Two Examples, Movements in Plants that Are Growth Independent.
- Rewrite the Following Statement by Selecting the Correct Options. for Photosynthesis ______________ Substance is Not Essential.
- Name Four Plant Hormones.
- Name any two plant hormones and state their functions.
- What Do You Mean by Seismonastic Movement?
- Write the Changes that Occur in the Age Group 11 to 21 Years in Boys.
- Hormones Secreted by Endocrine Glands Are Directly Released into Blood Stream.
- In Frogs, Thyroid Secretion Stimulates the Metamorphosis from Tadpole To Adult Frog.
