Histo 1-50 Flashcards
1
Q
- Effector cell of humoral immunity is://
A
Active B cell differential plasma
2
Q
- Platelets are small cytoplasmic fragments of bone marrow cells called://
A
magakaryoctes
3
Q
- Live span of erythrocytes is://
A
120 Days
4
Q
- What comes from a megakaryocyte://
A
Therombocytes /platelets
5
Q
- Which leukocyte is the most abundant in a peripheral smear of blood://
A
Neutrophils
6
Q
- Which of the following is a granulocyte://
A
e/b/n/acidophils
7
Q
- Which leukocyte has a multi-lobed (3-5 lobes) nucleus://
A
neutrophil
8
Q
- Which cell has large blue granules, often obscuring the nucleus://
A
Besophils
9
Q
- Which leukocyte usually has a bi-lobed nucleus://
A
enosinophils
10
Q
- What is another term for a platelet://
A
thrombocytes
11
Q
- Which of the following formed elements do not contain a nucleus://
A
RBC/ Platelets
12
Q
- Blood monocytes give rise to:
A
Tissue macrophages /osteoclasts/ langerhans
13
Q
- At the laboratory experiment the leukocyte culture was mixed with staphylococci. Neutrophile leukocytes engulfed and digested bacterial cells. This processes are termed://
A
phagocytersis
14
Q
- A differential cell count of a blood smear from a patient with a parasitic infection is likely to reveal an increase in the circulating numbers of which cell type://
A
eoinophils
15
Q
- A 35-year-old woman’s physician orders laboratory blood tests. Her fresh blood is drawn and centrifuged in the presence of heparin as an anticoagulant to obtain a hematocrit. From top to bottom, the fractions resulting from centrifugation are which of the following://
A
Plasma ,buffer coat and erythrocytes
16
Q
- Which leukocyte is the least abundant in a peripheral smear of blood://
A
neutrophils
17
Q
- Which of the following is a granulocyte://
A
a/e/n/b/
18
Q
- Which is the largest leukocyte://
A
monocyest
19
Q
- Which of the following is described as a “biconcave disc”://
A
RBC
20
Q
- Which leukocyte has orange-pink granules://
A
EOSINOPHILS
21
Q
- Which leukocyte is the second most abundant in a peripheral smear of blood://
A
LYMPHOCYTES
22
Q
- The circulating white blood cells which are fewest in number are the://
A
BASOPHILS
23
Q
- Antigen-independent differentiation of T-lymphocytes takes place in://
A
THYMUS
24
Q
- Large granular lymphocytes are://
A
T-CELL /NATURAL KILLER CELL
25
28. Normally most of the circulating white blood cells are://
NEUTROPHILS
26
29. It is believed that worn out red cells are normally destroyed in the spleen by://
MACROPHAGES
27
30. Which area in cartilage is relatively collagen-poor and proteoglycan-rich://
TERRITORIAL MATRIX
28
31. How does articular cartilage differ from most other hyaline cartilage://
IT lacks a perichodrium
29
32. What do you call the space where a chondrocyte sits in://
lacuna
30
33. Classification of cartilage tissue into three types depends on://
Collagen/chrondocytes/fibres cartilage
31
34. Which type of cartilage is found in the walls of the eustachian tube://
elastic cartilage
32
35. Which type of cartilage forms the skeleton of the fetus://
hyaline cartilage
33
36. Which type of cartilage is characterized by the presence of elastic fibers://
elastic
34
37. The process of intramembranous ossification begins with the formation of://
Formation of mesenchymal condensation which differentiate into proliferating preostblasts and finally become bone depositing osteoblasts
35
38. Mesenchymal stem cells give rise to all cells of skeletal tissues except for one://
Skine cell
36
39. The structural unit of the mature compact bone is://
osteon
37
40. Bone growth in length is provided by://
Chondrocytes (endochondral ossification )endochondral deposition of bone
38
41. The process of endochondral ossification begins with://
Endochondral ossification begins with mesenchymal tissue transforming into a cartilage intermediate, which is later replaced by bone and forms the remainder of the axial skeleton and the long bones
39
42. What cell is involved in bone resorption://
Osteoclast cell
40
43. What is the cylindrical structure in compact bone://
Osteon
41
44. What is the space that an osteocyte rests in://
Lacuna
42
45. What cell is an immature bone cell://
Osteoblast
43
46. What is the covering of a bone://
Periosteum
44
47. In healthy bone canaliculi are likely to contain which one of the following://
Osteocytic processes
