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Chapter 1 of 12 • Page 1 of 248🔒 Protected PDF • Watermarked
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નીચેનામાંથી કયું સંયોજક પેશીનું ઉદાહરણ નથી?
ત્વચા
હાડકું
કોમલાસ્થિ
રક્ત
ત્વચા
Connective tissue is a specialized tissue that connects, supports, binds, or separates other tissues or organs of the body. While bone, cartilage, and blood are classic examples of connective tissue, skin is an organ consisting of multiple tissue types (epithelial, connective, and nervous).
Connective tissue is a specialized tissue that connects, supports, binds, or separates other tissues or organs of the body. While bone, cartilage, and blood are classic examples of connective tissue, skin is an organ consisting of multiple tissue types (epithelial, connective, and nervous).
Think of the body like a construction site: connective tissues are like the steel beams (bone), the mortar (cartilage), and the utility pipes (blood/lymph) that hold the entire structure together, while the skin is the entire finished facade (wall) which is made of multiple materials like bricks, paint, and mortar.
Connective tissues are characterized by having cells separated by an extracellular matrix, which typically contains protein fibers (collagen or elastin) and a ground substance. Bone and cartilage provide structural support with mineralized or gel-like matrices, while blood acts as a fluid connective tissue transporting nutrients. Skin, however, is a composite structure where the epidermis is epithelial tissue and the dermis contains connective tissue, making the entire skin an organ rather than a single tissue type.
Connective tissue has three main components: cells, fibers, and ground substance.
Blood is considered a fluid connective tissue because its cells are suspended in a liquid matrix (plasma).
Bone provides a rigid frame for the body; it is a mineralized connective tissue.
Skin is a composite organ comprising epithelial, connective, nerve, and muscle tissues.
Connective tissues support internal organs.
Blood transports oxygen and hormones.
The dermis of the skin is composed of dense irregular connective tissue, but the skin organ as a whole is not.
Option B (Bone) is a skeletal connective tissue.
Option C (Cartilage) is a supportive connective tissue.
Option D (Blood) is a vascular (fluid) connective tissue.
A is correct — Skin is categorized as an organ because it is composed of several types of tissues, including epithelial and connective tissue, rather than being a single tissue type itself.
Always distinguish between a tissue (single functional unit) and an organ (group of tissues performing a specific function). Skin, Heart, and Lungs are always organs.