Connective Tissues Quiz

Mesenchyme

To maintain the stability of the organism’s internal environment (homeostatic)

Respiratory function

Liquid in the blood and lymph, jelly-like in the mucous tissue, solid in the bone tissue

(a) Formation of the stroma of various organs; (b) formation of capsules of various organs associated with stromal elements; (c) formation of organs that play the supporting role and protect elements in the body (tendons, ligaments, cartilage, bones)

1. Blood, lymph 2. Hematopoietic tissues: myeloid and lymphoid 3. Fibrous connective tissues (proper connective tissues): A) loose fibrous connective tissue B) dense fibrous connective tissue (regular and irregular) 4. Connective tissues with specific properties: adipose, reticular, mucous, pigment 5. Skeletal connective tissues: cartilage and bone

1. Respiratory (transport of oxygen from the lungs to all organs and carbon dioxide from the organs to the lungs); 2. Trophic (delivery of nutrients to organs); 3. Protective (ensuring humoral and cellular immunity, blood clotting in case of injuries); 4.Excretory (removal and transport to the kidneys of metabolic products); 5. Homeostatic (maintaining the constancy of the internal environment of the body, including immune homeostasis). 6. Transportive - transport of hormones and other biologically active substances.

PLASMA(55-60%) water - 90-93%, Organic substance- 6-9% (proteins - albumins, γ globulins, α and β agglutinins, fibrinogen, prothrombin, enzymes; lipids, carbohydrates, hormones, vitamins). Inorganic substance - 1% (buffer systems - pH 7.4; electrolytes, trace elements).

White blood cells– leucocytes (4,5–9,5×109 /l) Postcellular structures: red blood cells (4,0-5,5× 1012/l), thrombocytes (200-400×109 /l)

The extraembryonic mesenchyme of the yolk sac → PBC (primitive blood cell) → differentiating progenitor cells → FBC (Formed blood cells)