• Гідрологія і Гідрометрія
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• Предмет Політологія
• Соціальне страхування
• Технічні засоби організації дорожнього руху
• Товарознавство продовольчих товарів

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?

a. osteoblast

b. osteocyte

c. odontoblast

d. +osteoclast

e. enameloblast

201. Tissue that is situated within cranial sutures and within the places of attachment of tendon to bone:

a. elastic cartilage

b. fibrocartilage

c. hyaline cartilage

d. lamellar bone

e. +woven bone

202. Intercellular substance of the woven bone is characterized by:

a. +irregular arrangement of the bundles of collagen fibres

b. parallel arrangement of collagen fibres

c. reticular arrangement of the collagen fibres

d. interchange of regularly arranged collagen fibres and circularly arranged collagen fibres

e. circular arrangement of collagen fibres

203. Intercellular substance of the lamellar bone is characterized by:

a. irregular arrangement of the bundles of collagen fibres

b. +parallel arrangement of collagen fibres

c. reticular arrangement of collagen fibres

d. interchange of regularly arranged collagen fibres and circularly arranged collagen fibres

e. circular arrangement of collagen fibres

204. Interstitial lamellae of the diaphysis of compact bone are situated between:

a. +osteons

b. periosteum and outer circumferential lamellae

c. endosteum and inner circumferential lamellae

d. outer and inner layers of the periosteum

e. concentric lamellae forming Haversian system

205. Endochondral ossification of the cartilaginous primordium of tubular bone begins as:

a. deposition of osseous tissue over the surface of diaphysis

b. +deposition of lamellar bone within cartilaginous primordium

c. formation of woven bone around blood vessels of cartilage

d. formation of medullary (marrow) cavity

e. deposition of osseous tissue on the surface of epiphysis

206. Development of bone in place of cartilage begins from:

a. endochondral ossification

b. +perichondral ossification

c. destruction of cartilaginous model

d. ossification of the epiphysis

e. calcification of the cartilaginous model

207. The first stage of the direct osteogenesis is characterized by the formation of:

a.bone trabeculae

b. +skeletogenous islets

c. osteoid

d. osseous cuff

e. calcified osteoid

208. Growth of tubular bone lengthwise takes place because of:

a. periosteum

b. endosteum

c. +metaepiphyseal cartilaginous plate

d. epiphysis

e. diaphysis

209. Shape of smooth muscle cell of mesenchymal origin is:

a. cuboidal

b. prismatic

c. pyramidal

d.+ fusiform

e. pyriform

210. Structural elements of the smooth muscle cell that contain ions of calcium:

a. mitochondria

b. actin filaments

c. myosin filaments

d. Golgi complex

e. +vesicles of smooth endoplasmic reticulum

211. Actin filaments of the smooth muscle cell are connected with one another and with plasmalemma by means of:

a. +solid corpuscles

b. mitochondria

c. lysosomes

d. cisternae of the granular endoplasmic reticulum

e. canaliculi of the agranular endoplasmic reticulum

212. Impulse transmission from one smooth muscle cell to another is caused by:

a. desmosomes (bridge corpuscles)

b. interdigitations

c. +nexuses

d. adhesive belts

e. tight junctions

In the histologic specimen of muscular tissue one can determine muscle fibres containing a large number of nuclei situated under the sarcolemma. What type of muscular tissue is it?

a. +skeletal striated

b. smooth muscle of inner organs and vessels

c. cardiac

d. myoepithelial

e. neuromuscular tissue of the eye

214. Shape and location of satellite cells of the skeletal muscle:

a. cubical, within surrounding connective tissue

b. prismatic, on the basal membrane surrounding the muscle fibre

c. +flattened, between plasmalemma of the muscle fibre and basal membrane

d. round, under the plasmalemma

e. pyramidal, within muscle fibre

On the electron photomicrograph of the peripheral zone of muscle fibre there is a small flattened cell containing very few organelles. That cell is situated between plasmolemma and basal membrane of muscle fibre. What do we call that cell?

a. fibroblast

b. +satellite cells

c. fat cell

d. plasmocyte

e. histiocyte

216. Striated muscle is able to regenerate because of:

a. sarcolemma

b. +satellite cells

c. sarcoplasm

d. sarcoplasmic reticulum

e. myofibril

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