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Cells of the cartilaginous isogenous groups that are characterized by high nucleocytoplasmic ratio. Among such cells there are many those at different stages of mitosis.

a. prechondroblasts

b. chondroblasts

c. +chondrocytes of the first type

d. chondrocytes of the second type

e. chondrocytes of the third type

 

183. Posttraumatic regeneration of the cartilaginous cells and intercellular substance takes place because of:

a. prechondroblasts

b. chondroblasts

c. chondrocytes of the first type

d. chondrocytes of the second type

e. +chondroclasts

 

184. Hyaline cartilage is found in:

a. intervertebral disks

b. laryngeal corniculate cartilage

c. +trachea

d. auricle

e. laryngeal Morgagnis cartilage

 

What type of collagen fibres does the intercellular substance of hyaline cartilage contain?

a. I

b.+ II

c. III

d. IV

e. V

 

186. Elastic cartilage differs from hyaline cartilage by the presence of:

a. ground substance

b. +elastic fibres

c. collagen fibres

d. chondrocytes

e. perichondrium

 

187. Elastic cartilage is found in:

a. +auricle

b. intervertebral disks

c. pubic suture

d. trachea

e. articular surfaces of the bone

 

188. Elastic cartilage is found in:

a. place of attachment of the ribs to the breast bone

b. intervertebral disks

c. trachea

d. large bronchi

e. +epiglottis

 

189. Fibrocartilage is situated in:

a. the place of attachment of the ribs to the breast bone:

b. articular surface of bones

c. trachea

d. bronchi

e. +intervertebral disks

 

190. Different-shaped cells that are situated on the surface of developing bony trabeculae. Those cells are characterized by ultrastructure of the protein-synthesizing cells:

a. fibroblasts

b. odontoblasts

c. +osteoblasts

d. osteocytes

e. osteoclasts

 

What cells are responsible for the process of formation and calcification of the bony intercellular substance?

a. +osteoblasts

b. osteocytes

c. osteoclasts

d. fibroblasts

e. endotheliocytes

 

192. Osteoblasts take part in:

a. +formation of the bony tissue

b. thermoregulation

c. destruction of the calcified cartilage and bone

d. production of the antibodies

e. homeostasis of the organic and mineral composition of the bony tissue

 

There is an electron photomicrograph of a cell of developing bony tissue. Around the cell one can see collagen fibres. The cytoplasm of the cell contains well developed granular endoplasmic reticulum. What do we call that cell?

a. mature osteocyte

b. +steoblast

c. osteoclast

d. endotheliocyte

e. mesenchymal cell

 

194. Bone cells that are not able to divide; they have small body and numerous processes:

a. osteoblasts

b. +osteocytes

c. osteoclasts

d. fibroblasts

e. odontoblasts

 

There is an electron photomicrograph of a bone cell. Processes of the cell are situated in small canaliculi. Its cytoplasm contains pooly developed endoplasmic reticulum and Golgi complex. What do we call that cell?

a. +mature osteocyte

b. osteoblast

c. osteoclast

d. endotheliocyte

e. fibroblast

 

196. Osteocytes participate in:

a. formation of the osseous tissue

b. thermoregulation

c. removal of bone

d. productions of antibodies

e. +maintenance of the homeostasis of organic and mineral composition of the osseous tissue

 

197. Large polynucleated cells different in shape that contain ruffled membrane and numerous lysosomes; those cells are responsible for absorption and destruction of bone and calcified cartilage:

a. enameloblasts

b. odontoblasts

c. osteoblasts

d. + osteoclasts

 

198. Osteoclasts take part in:

a. formation of osseous tissue

b. thermoregulation

c. +removal of bone and calcified cartilage

d. production of antibodies

e. maintenance of the homeostasis of organic and mineral composition of the osseous tissue

 

199. Osteoclasts arise from:

a. neutrophils

b. +monocytes

c. basophils

d. lymphocytes

e. erythrocytes

 


:

  1. A DIFFERENT KIND OF EDUCATION
  2. A) Analyze the simple rhythm-units into three groups monobeats (M), trochees (T) and dactyls (D).
  3. Activity Groups
  4. Are There Any Messages for Me?
  5. As a result of mitotic division, the two somatic cells were formed. What chromosome number do they contain?
  6. B) Make up sentences with the word-groups you have translated.
  7. Brainstorming. In small groups of 3 or 4 students discuss formulated answers.
  8. Cancer warning over stem cells
  9. Cellspacing
  10. Conversion is the main way of forming verbs in Modern English. Verbs can be formed from nouns of different semantic groups and have different meanings, e.g.
  11. D. Find in the text phrases containing to get and memorize different meanings of the verb.




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What tissue takes an active part in heat production in the newborn organism? | There is an electron photomicrograph of a bone cell. In the cytoplasm of the cell one can see a large number of lysosomes. What cell is it?

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