Histology MCQs/Connective Tissue



{All but one of following bones are based on intramembranous ossification. Which of them is not based on intramembranous ossification? - Parietal bone - Clavicle - Scapula + Femur
 * type=""}

{Do white adipocytes (fat cells) produce some hormones? - Probably yes, they do it, but no one knows them - Yes, they do produce hormones, e.g. insulin + Yes, they do produce hormones, e.g. leptin - No, they do not produce hormones
 * type=""}

{We have two types of lamellar bone (secondary bone). Which one? - Lamellar bone does not have well-defined subtypes + Compact bone and spongy (cancellous) bone - Woven bone and spongy (cancellous) bone - Compact bone and woven bone
 * type=""}

{What are interstitial lamellae? + Remnants of older Haversian systems destroyed during remodelation of the bone - Traces of microtraumata which were able do affect the structure of the bone - First parts of newly formed Haversian systems - Remnants of immature bone
 * type=""}

{Which type of cartilage is main material of the growth plate? + Hyaline cartilage - Elastic cartilage - Fibrocartilage
 * type=""}

{What does it mean that reticular fibers are argyrophilic? - They are indistinguishable from background in hematoxylin-eosin staining + It is possible to highlight them using silver impregnation - It is possible to highlight them using PAS reaction - They contain huge amount of saccharides
 * type=""}

{What is a glycosaminoglycan? - Branched polysaccharide rich on, e.g., hexosamine or uronic acid + Linear polysaccharide rich on, e.g., hexosamine or uronic acid - Branched peptide rich on, e.g., leucine or isoleucine - Linear peptide rich on, e.g., leucine or isoleucine
 * type=""}

{What is a precursor cell of macrophages (histiocytes)? - Langerhans cell - Dendritic cell - Kupffer cell + Monocyte
 * type=""}

{What is a Sharpey fiber (perforating fiber)? - Bundle of reticular fiber growing from the bone marrow through the endosteum to the bone + Bundle of collagen fibers growing from the periosteum to the bone - Bundle of reticular fibers inside the tendon - Bundle of collagen fibers inside the tendon
 * type=""}

{What is an aggrecan? - Abundat proteglycan in the extracellular matrix of a dense connective tissue + Abundat proteglycan in the extracellular matrix of a hyaline cartilage - Abundat proteglycan in the extracellular matrix of a compact bone - Abundat proteglycan in the extracellular matrix of a spongy bone
 * type=""}

{Which is diameter of fibrils of type I collagen? - 2 to 9 nm + 20 to 90 nm - 200 to 900 nm - 2 to 9 μm
 * type=""}

{Which is a fate of osteoblasts? - After production of the extracellular matrix is completed, all of them differentiate to osteocytes - After production of the extracellular matrix is completed, all of them disappear via apoptosis - Minority of them disappear via apoptosis, majority of them differentiate to osteocytes + Majority of them disappear via apoptosis, minority of them differentiate to osteocytes
 * type=""}

{Which is a general function of mast cells? + Releasing of molecules involved in regulation of local immune response - Releasing of moleculec of the extracellular matrix - Phagocytosis of damaged molecules - Phagocytosis of bacteria
 * type=""}

{Which is main collagen of basal and external laminae? - Type I collagen - Type II collagen - Type III collagen + Type IV collagen
 * type=""}

{Which is main fibrilary part of extracellular matrix of bones? + Fibrils composed of type I collagen - Fiber composed of type I collagen - Fibrils composed of type II collagen - Fibers composed of type II collagen
 * type=""}

{Which is main function of fibroblasts? - They produce nearly nothing, they are the resting form of the cells producing the extracellular matrix - Production of the fibrilary component of the extracellular matrix in the connective tissue - Production of the ground substance of the extracellular matrix in the connective tissue + Production of main part of the extracellular matrix in the connective tissue
 * type=""}

{Which is main function of plasma cells? - Production of anti-inflammatory signaling molecules - Production of pro-inflammatory signaling molecules - Phagocytosis of foreign particles + Production of antibodies
 * type=""}

{Which is main protein of collagen fibers? + Type I collagen - Type II collagen - Type III collagen - Type IV collagen
 * type=""}

{Which is main protein of reticular fibers? - Type I collagen - Type II collagen + Type III collagen - Type IV collagen
 * type=""}

{Which is main tissue of periosteum? - Reticular connective tissue - Elastic connective tissue - Mucoid connective tissue + Dense connective tissue
 * type=""}

{Which is the origin of osteoblasts? - Osteoblasts are extraordinary heterogeneous population including plenty of different origins + Osteoblasts differentiate from mesenchymal stem cells - Osteoblasts are derived from the neural crest - Osteoblasts differentiate from monocytes
 * type=""}

{Which statement describes an articular cartilage the best? + It does not have perichondrium, fibrilary part of its extracellular matrix is arranged in some pattern - It does not have perichondrium, fibrilary part of its extracellular matrix is poor - It has pronounced perichondrium, fibrilary part of its extracellular matrix is arranged in some pattern - It has pronounced perichondrium, fibrilary part of its extracellular matrix is poor
 * type=""}

{Which proteins are main proteins of elastic fibers? + Elastin and fibrillin - Elastin only - Fibrillin only - Main material of elastic fibers are liposaccharides
 * type=""}

{Which structure is composed of dense irregular connective tissue? - Main supportive tissue of hematopoietic organs + Sheath (capsule) of inner organs - Lamina propria mucosae - Ligament
 * type=""}

{Which structure is composed of loose connective tissue? - Main supportive tissue of hematopoietic organs - Sheath (capsule) of inner organs + Lamina propria mucosae - Ligament
 * type=""}

{Which type of cartilage does not have well-defined perichondrium? - All types have well-defined perichondrium - Hyaline cartilage - Elastic cartilage + Fibrocartilage
 * type=""}

{Which type of cartilage is inside the auricle? + Elastic cartilage - Hyaline cartilage - Fibrocartilage
 * type=""}

{Which type of cartilage is material of intraarticular discs? - Elastic cartilage - Hyaline cartilage + Fibrocartilage
 * type=""}

{Which type of cartilage is most common in the wall of respiratory ways? - Elastic cartilage + Hyaline cartilage - Fibrocartilage
 * type=""}

{Which type of collagen is main part of fibrilary component of the hyaline cartilage? - Type I collagen + Type II collagen - Type III collagen - Type IV collagen
 * type=""}

{Which type of tissue is main type of tissue of the tendon? - Dense irregular connective tissue + Dense regular connective tissue - Loose connective tissue - Fibrocartilage
 * type=""}

{Which of following descriptions is appropriate description of white adipocyte (fat cell)? - It is usually relatively big cell which is nearly filled by plenty small of lipid droplets + It is usually relatively big cell which is nearly filled by one big lipid droplet - It is extraordinary small cell which is filled by plenty of small lipid droplets - It is extraordinary small cell which is filled by one big lipid droplet
 * type=""}

{Imagine the macrophage (histiocyte) as a super supervillain. Which superpower does he have? + Phagocytosis - Autolysis - Necrosis - NETosis
 * type=""}
 * "Muhehehe! I'll eat all innocent bacteria!"

{Which of following statemens describes proteoglycans the best? - Proteoglycan is composed of big globular protein on which are attached short oligosaccharides + Proteoglycan is composed of protein core on which are attached glycosaminoglycans - Proteoglycan is a protein which is able to recognize motifs on saccharides - Proteoglycan is a hormone which increases level of glucose in blood
 * type=""}

{Which of following statements is the best description of an osteoid? + Osteoid is an immature extracellular matrix of bones which still lacks inorganic compounds - Osteoid is an immature extracellular matrix of bones which still lacks fibrilary part - Osteoid is an destroyed extracellular matrix of bones which already lacks fibrilary part - Osteoid is an destroyed extracellular matrix of bones which already lacks inorganic compounds
 * type=""}

{Which of following statements about changes of environment inside the sealing zone is true? + Osteoclasts release hydrolytic enzymes and decrease pH - Osteoclasts release hydrolytic enzymes and increase pH - Osteoclasts release lipolytic enzymes and decrease pH - Osteoclasts release lipolytic enzymes and increase pH
 * type=""}

{Which of following statements about metabolism of chondrocyte is the most accurate? + Metabolism is slow, main source of energy is anaerobic glycolysis - Metabolism is slow, main source of energy is aerobic glycolysis - Metabolism is intense, main source of energy is anaerobic glycolysis - Metabolism is intense, main source of energy is aerobic glycolysis
 * type=""}

{Which of following statements describes a fibroblast the best? + It contains irregular branched cytoplasm, large ovoid euchromatic nucleus with prominent nucleolus, abundant rough endoplasmic reticulum and well-developed Golgi apparatus - It contains irregular branched cytoplasm, small condensed nucleus, abundant smooth endoplasmic reticulum and numerous actin filamets - It contains a few droplets of lipid in the cytoplasm, round and eccentrically located nucleus with - It is spindle-shaped cell with condensed nucleus, cytoplasm is poor with a few organelles only
 * type=""}

{Which of following techniques is an appropriate technique for demonstration of elastic fibers? - Heidenhein's trichromatic technique AZAN - Green Masson trichrome + Orcein - PAS reaction
 * type=""}

{Which of following tissues is main tissue of the umbilical cord? + Jelly-like connective tissue - Reticular connective tissue - Loose connective tissue - White adipose tissue
 * type=""}
 * You're partially right, some authors assume that definition of jelly-like tissue is unnecessary.

{Which of following types of cartilage is the most common in adult body? + Hyaline cartilage - Elastic cartilage - Fibrocartilage
 * type=""}

{Which step is first one during the enchondral ossification? + Formation of the bone collar on the surface of the cartilagineous model of the bone - Growing of blood vessels through the cartilage to the primary ossification center - Calcification of the extracellular matrix - Hypertrophy of chondrocytes
 * type=""}

{Why is woven bone (primary bone) called woven? - Bone forms 3D structure which is similar to the wool - "fiber" of bone tissue and big empty spaces - Fibrilary part of the extracellular matrix is present in this type of bone only + Collagen fibers in the bone are arranged haphazardly like fibers in the wool - The name is historical mistake
 * type=""}

Links

 * List of all tests: Histology MCQs
 * Portal:Histology