7
Question Question 7
What is the specific function of the cardiac muscle?
The specific function of the cardiac muscle is to contract and expand. They show rhythmic and involuntary contraction and relaxation throughout life enabling the heart to beat and pump blood to all parts of the body.
BRIGHT TUTORIALS
BRIGHT TUTORIALS
CBSE Class IX | Academic Year 2026-2027
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Science | Chapter 6: TissuesWeb Content — Quick Reference
Chapter 6: Tissues — Quick Reference
Quick Revision Points
- Meristematic: actively dividing (apical, lateral, intercalary)
- Parenchyma (thin, living, storage), Collenchyma (corner-thickened, flexibility), Sclerenchyma (thick, dead, strength)
- Xylem: water transport upward (mostly dead). Phloem: food transport (mostly living)
- Epithelial: squamous, cuboidal, columnar, ciliated, glandular
- Connective: blood, bone, cartilage, tendon (muscle-bone), ligament (bone-bone), areolar, adipose
- Muscular: striated (voluntary), smooth (involuntary), cardiac (involuntary, never tires)
- Nervous: neuron = cell body + dendrites + axon; transmits electrical impulses
Exam Tips for Chapter 6
- Read the detailed chapter notes for complete coverage of all NCERT topics.
- Practice all NCERT in-text and back exercise questions — they are frequently asked in exams.
- Focus on comparison tables, diagrams, and definitions — these are high-scoring areas.
- For numericals (if applicable), practice at least 20 problems of varying difficulty.
- Refer to the practice question bank (200+ questions) for thorough preparation.
Related Resources
- Detailed Notes: ch06-tissues.html
- Practice Questions: 100+ questions with answers in 05-practice-questions/
- Chapter Test: 30-mark test paper in 06-tests/chapter-tests-30marks/
- Formula Sheet: Complete formula reference in 03-teacher-aid/formula-sheet.html