Question 1

A patient goes to the emergency department because his arm started to swell up after being stung by a wasp. In order to eliminate possible bacteria that entered the patient's connective tissue compartment when he was stung by the wasp certain cells were recruited to the site of the lesion. Which of the following are those cells?

Accepted Answer

A)  eosinophils 
B)  monocytes 
C)  neutrophils 
D)  plasma cells 
E)  NK cells C

Question 2

In Fig. Img_012, classify the tissue presented in the accompanying photomicrograph.

Accepted Answer

A)  dense regular collagenous connective tissue 
B)  dense irregular collagenous connective tissue 
C)  loose connective tissue 
D)  dense regular elastic connective tissue 
E)  mucoid connective tissue C

Question 3

A patient goes to the emergency department because his arm started to swell up after being stung by a wasp. IgE receptors are present on which cells of this patient?

Accepted Answer

A)  eosinophils 
B)  mast cells 
C)  T lymphocytes 
D)  plasma cells 
E)  NK cells B

Question 4

A patient goes to the emergency department because his arm started to swell up after being stung by a wasp. Which of the following cells synthesized the IgE that occupied the IgE receptors?

Accepted Answer

A)  eosinophils 
B)  monocytes 
C)  T lymphocytes 
D)  plasma cells 
E)  NK cells

Question 5

A patient goes to the emergency department because his arm started to swell up after being stung by a wasp. Although it did not happen to this patient, the process whereby a bacterium is recognized by the cell surface receptor and internalized into the cell is referred to as

Accepted Answer

A)  phagocytosis 
B)  exocytosis 
C)  pinocytosis 
D)  clathrin-mediated exocytosis 
E)  clathrin-mediated endocytosis

Question 6

A patient goes to the emergency department because his arm started to swell up after being stung by a wasp. Although it did not happen to this patient, in some individuals the smooth muscles of the bronchioles may undergo prolonged contraction resulting in possible respiratory distress. Which of the following pharmacologic agents released by the cells that possess IgE receptors is responsible for contraction of the bronchiolar smooth muscles?

Accepted Answer

A)  heparin 
B)  chondroitin sulfate 
C)  aryl sulfatase 
D)  prostaglandin 
E)  thromboxane A2

Question 7

In Fig. Img_014, the large red cell in the middle of the field is responsible for which of the following conditions?

Accepted Answer

A)  anaphylactic shock 
B)  osteoblastoma 
C)  leukemia 
D)  chondroblastoma 
E) . fibroma

Question 8

A patient goes to the emergency department because his arm started to swell up after being stung by a wasp. The exocytosis of histamine from the granules of the cells that possessed IgE receptors was due to the increased intracellular concentration of calcium. The process of calcium release was initiated by a trigger mechanism that depended on the

Accepted Answer

A)  formation of IgE receptors by plasma cells 
B)  activation of adenylate cyclase 
C)  secretion of leukotrienes 
D)  release of preformed mediators 
E)  decrease in cyclic AMP levels

Question 9

In Fig. Img_015a, a patient enters the emergency department after she fell. The emergency department physician determined that she tore a tissue in her leg. The following photomicrograph shows the torn tissue. Identify the cells whose nuclei are visible in this photomicrograph.

Accepted Answer

A)  fibroblasts  
B)  Schwann cells 
C)  smooth muscle cells 
D)  mesenchymal cells 
E)  macrophages

Question 10

A patient goes to the emergency department because his arm started to swell up after being stung by a wasp. Prostaglandins released by the cells that possess IgE receptors were

Accepted Answer

A)  synthesized in the cytosol 
B)  stored in vesicles 
C)  synthesized from cholesterol 
D)  synthesized from arachidonic acid precursors 
E)  modified in the Golgi apparatus

Question 11

In Fig. Img_015, a patient enters the emergency department after she fell. The emergency department physician determined that she tore a tissue in her leg. The following photomicrograph shows the torn tissue. What did this patient tear?

Accepted Answer

A)  dermis of the skin 
B)  epidermis of the skin 
C)  ligamentum nuchae 
D)  tendon 
E)  peripheral nerve bundle

Question 12

A patient goes to the emergency department because his arm started to swell up after being stung by a wasp. In order to eliminate possible parasites that entered the patient's connective tissue compartment when he was stung by the wasp, certain cells were recruited to the site of the lesion. Which of the following are those cells?

Accepted Answer