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Tissues — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceTissues5 Marks
Question
  1. Identify A, B, C and D.
  2. Write the functions of A, B, C and D.
  3. Write the difference between A and D.

✓

Answer

  1. A- Tendon
B- BoneC- MuscleD- Ligament
  1. A- The main function of a tendon is to connect skeletal muscles to bones. Tendons are a type of connective tissue, and the primary building blocks of tendons are collagen fibers.
B- Bones have many functions. They support the body structurally, protect our vital organs, and allow us to move. Also, they provide an environment for bonemarrow, where the blood cells are created, and they act as a storage area for minerals, particularly calcium.C- the main function of the muscular system is movement, but it also helps stabilize our joints, maintain our posture and generate heat during activity. Movement of our body can be voluntary and controlled by the skeletal muscles, or it can be involuntary and controlled by smooth muscles.D- Ligaments attach two bones or cartilages,it helps in supporting and keeping the organ in position, it is made of fibrous tissue.
Tendons
Ligaments
Connects skeletal muscles to bones
Connects bones to bones
Tough and elastic
Elastic
Connects the end of the muscles to bones
Connects the end of the bones at joints
Each muscle contains only one tendon
Each joint contains many ligaments
Proteoglycan content is less
Proteoglycan content is more
White in colour
Yellow in colour
Blood supply is good
Blood supply is poor
Fibroblasts lie in a continuous row
Fibroblasts are scattered
The fibres and compact and present in parallel bundles
They are not arranged in parallel bundles but are compactly packed
No such classification
They are classified into 3 types, namely: Articular ligaments, Remnant ligaments and Peritoneal Ligaments

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