1. B-pleural membrane- surround ribs on both sides to provide cushion against rubbing
2. C- Alveoli- thin walled vascular bag like structures for exchange of gases
3. D- Lower end of lungs- diaphragm pulls it down during inspiration
4. A-Trachea –long tube supported by complete cartilaginous rings for conducting inspired air
C- Alveoli- thin walled vascular bag like structures for exchange of gases
1. B- Pulmonary artery – takes blood from heart to lungs, PO2 = 90mm Hg
2. C- Vena Cuva – takes blood from body parts to right auricle, PCO2 = 45 mm Hg
3. D- Dorsal aorta – takes blood from Heart to body Part PO2 = 95 mm Hg
4. A-Pulmonary vein – takes impure blood from body parts, PO2 = 60 mm Hg
C- Vena Cuva – takes blood from body parts to right auricle, PCO2 = 45 mm Hg
1. Lymphatics possess valves
2. Movement of lymph is due to lymph heart
3. Lymph always moves towards the heart
4. Lymph moves unidirectionally in lymphatics
Lymph always moves towards the heart
1. The opening between the right atrium and the right ventricle
2. The fork where the pulmonary artery splits and one branch goes to each lung
3. The base of the aorta where it leaves the left ventricle
4. A vein in the arm
The fork where the pulmonary artery splits and one branch goes to each lung
1. Causing antibody molecules to assume a shape that permits them to bind and agglutinate the antibody
2. Causing mutations in cells so that they produce antibodies to the antigen that caused the mutation
3. Causing cells with the proper antibody to disintegrate and release the anti body
4. Stimulating reproduction of cells that make the antibody to that antigen
Stimulating reproduction of cells that make the antibody to that antigen
1. Lose its ability to combat cancer and produce new lymphocytes
2. Lose its ability to reject skin grafts
3. Lose its ability to amount a secondary immune to response
4. Produce an increased number of red blood cells
Produce an increased number of red blood cells
1. 97% to 98%
2. 90% to 92%
3. 60% to 70%
4. 70% to 80%
97\% to 98\%
1. Veins
2. Capillaries
3. Arteries
4. Lymphatics
Arteries
1. Right atrium
2. Left atrium
3. Right ventricle
4. Left ventricle
Left ventricle
1. Arteries
2. Veins
3. Veins and capillaries
4. None of the above
Arteries