Breathing into and out of a paper bag for a long period of time will lead to ________.

Breathing into and out of a paper bag for a long period of time will lead to ________.
 
  A) urinary alkalosis
  B) respiratory acidosis
  C) metabolic acidosis
  D) urinary acidosis
  E) metabolic alkalosis

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(Question 2) Lymphatic vessels recover about ________ of the fluid filtered by capillaries.
 
  A) 50 B) 5 C) 25 D) 85 E) 15

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(Question 3) Target organs most often regulate the pituitary gland via ________.
 
  A) positive feedback inhibition
  B) antagonistic regulation
  C) up-regulation
  D) down-regulation
  E) negative feedback inhibition

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(Question 4) Dilation of the ________ causes the lacunae to fill with blood and the penis to become erect.
 
  A) dorsal arteries
  B) internal pudendal (penile) arteries
  C) deep arteries
  D) helicine arteries
  E) dorsal veins

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(Question 5) Glands that have branched ducts and secretory cells that form sacs at one end of the ducts are classified as ________ glands.
 
  A) simple coiled tubular
  B) simple acinar
  C) compound tubuloacinar
  D) areolar
  E) compound acinar

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(Question 6) With the elbow and wrist extended, painting a circle on a canvas requires ________ of the shoulder.
 
  A) flexion
  B) extension
  C) elevation
  D) rotation
  E) circumduction

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(Question 7) How do the kidneys compensate respiratory acidosis?
 
  A) By reabsorbing more ammonia
  B) By secreting more sodium ions
  C) By reabsorbing more hydrogen ions
  D) By secreting more bicarbonate ions
  E) By secreting more hydrogen ions

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(Question 8) ________ glands (such as tear glands) have vesicles that release their secretion via exocytosis. ________ glands (such as oil-producing glands) secrete a mixture of disintegrated cells and their products.
 
  A) Cytogenic; Apocrine
  B) Mucous; Cutaneous
  C) Merocrine; Holocrine
  D) Endocrine; Exocrine
  E) Mucous; Serous

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(Question 9) The ________ system breaks down food and absorbs nutrients.
 
  A) lymphatic
  B) digestive
  C) circulatory
  D) reproductive
  E) urinary

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(Question 10) Some antibodies against foreign antigens can react to similar self-antigens, causing an autoimmune disease.
 
  Indicate whether the statement is true or false