Question

please harry i need it right now

1)During inspiration, pressure will be lowest in which of the following?

Select one:

a. Secondary bronchus

b. Laryngopharynx

c. Trachea

d. Alveolar duct

e. Nasal cavity

2)During cardiac cycle in normal human: Select one:

a. The pulmonary valve opens when the right ventricular pressure reach 10 mm Hg.

b. During diastole, the left ventricular pressure is about 80 mm Hg.

c. The left ventricle eject more blood per beat than the right ventricle.

d. The mitral valve opens when the left atrial pressure exceeds the left ventricular pressure.

3)Which of the following is FALSE concerning the production and role of lung surfactant? Select one:

a. surfactant decreases the surface tension

b. surfactant increase the surface tension

c. It is synthesized by alveolar type II cells

d. It is part of a lipoprotein

4)Which statement is true Select one:

a. Systemic circulation has much higher pressure than pulmonary circulation

b. Systemic and Pulmonary circulation are equally pressured systems

c. Pulmonary ciculation has much higher pressure than systemic circulation

d. Pulmonary circulation has slightly higher pressure than systemic

5)Vasopressin: Select one:

a. Is produced by the anterior pituitary

b. Decreases the permeability of the collecting ducts to water

c. It has no antidiuretic effect

d. is released in response to reduced plasma osmotic pressure e. It has vasoconstrictor effect

6)A patient having excess amount of renin released , and he developed an edema in the abdominal wall, The cause for this edema is: Select one:

a. Retention of the fluid and sodium.

b. Decreased arteriolar resistance

c. Increasing the protein level in the blood.

d. Increase the permeability of the capillaries.

please harry i have an need it right now

Answer 1

answer 1

1)During inspiration, pressure will be lowest in which of the following? a secondary bronchus

during inspiration negative pressure create in side lungs so that air can move inside and increse in soze of thoracic cavity as we move down in respiratory system pressure increase

answer 2 option c

a

• .The pulmonary valve is opened by the increased blood pressure of the ventricular systole
• , pushing blood out of the heart and into the artery.
• It closes when the pressure drops inside the heart.
• ... The pulmonic valve opens into the pulmonary artery.

b during diastole blood in ventricle is filling so pressure is low between 2 to 8mm og hg

c. The left ventricle eject more blood per beat than the right ventricle.

left ventricle have to pump blood in whole body while right ventricle pump blood into pulmonary vein so eject less blood

d , the mitral valve closes and the aortic valve opens. This is so blood flows into the aorta and out to the rest of the body. and normaly its open

answer 3 c incraese the surface tension

• a mixture of lipids and proteins
• secreted by the epithelial type II cells into the alveolar space.
• function is to reduce the surface tension at the air/liquid interface in the lung.

answer 4 a

a. Systemic circulation has much higher pressure than pulmonary circulation

systemc circulation has 100times more pressure then pulmonary circulation

answer 5 d

vasopressin is secreted by posteriior lobe of pituatry gland

its is also called anti diuretic hormone

incraese permeablity of collecting duct to absorb water

and has vasoconstriction effect

answer 6 a

edemaa is due to sodium and fluid retetntion

renin increase arteriolar resistance

decrease the protein level in the blood.

deccrease the permeability of the capillaries.