Class Activity ch 21, 23 1. The thoracic duct empty or drain its lymphatic colle
ID: 281975 • Letter: C
Question
Class Activity ch 21, 23 1. The thoracic duct empty or drain its lymphatic collection into which of following? a. Aorta b. Junction of the left subclavian vein and internal jugular vein c. Right subclavian vein d. Junction of the right subclavian vein and internal jugular vein 2. Which of the following is not a component of nonspecific immunity? a. Skin b. Inflammation c. Fever d. Antibody 3. Which of the following cells produces surfactant? a. Type I alveolar cells b. Type II alveolar cells c. Alveolar macrophages d. Mast cells 4. Which of the following antibody is produced first in the primary immune response? a. IgG b. IgM c. IgD d. IgE 5. Which of the following are antigen presenting cells (APCs)2 a. NK cells b. Dendritic cells, macrophages c.B Lymphocytes d. B and C 6. Which of the following type of respiratory epithelium in found in the trachea? a. Stratified squamous epithelium with cilia b. Stratified columnar epithelium with cilia and goblet cells c. Pseudostratified columnar epithelium with cilia and goblet cells d. Transition epithelium 7. Which of the following is good example of passive immunity? a. Infusion of weak virusesExplanation / Answer
1. The correct answer is - b) Junction of the left subclavian vein and internal jugular vein.
Additional Information :
The lymphatic system is composed of right lymphatic duct and thoracic duct. The later is the larger among the two ducts. Thoracic duct is 38-45 cm in length & 5 mm in diameter. It carries chyle rather than pure lymph.
2. The correct answer is - d) Antibody.
Additional Information:
Antibody is a Y snapped immunoglobulin secreted by B lymphocytes. It is the important component of Adaptive lmmune system. They help to neutralize pathogens such as bacteria and viruses.
3. The correct answer is - b) Type ll alveolar cells.
Additional Information:
Lung Surfactant or Pulmonary Surfactant is a lipoprotein complex formed by Type ll alveolar cells. It help to reduce surface tension in the lungs.