The internal environment consists of the ____________________, which is made up of ____________________; the fluid portion of the blood; and ____________________, which surrounds and bathes all cells
Fill in the blank(s) with correct word
extracellular fluid, plasma, interstitial fluid
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A child is brought to a gastroenterologist because of persistent diarrhea, particularly after ingesting fatty meals. An extensive workup eventually reveals that the child lacks the ability to synthesize peptide YY
The increased stool volume seen in the child is most likely primarily ascribable to abnormally high active secretion of which of the following? A. short chain fatty acids B. Na+ C. K+ D. Cl- E. triglycerides
Which of the following is generally accepted as a secondary sex characteristic?
A) The vagina B) The prostate gland C) The enlargement of the breasts D) The uterus E) The presence of testes
Which of the following is not an origin for parasympathetic preganglionic fibers?
A. Sacral region of the spinal cord B. Hypothalamus C. Pons D. Medulla oblongata E. Midbrain
Select the most correct statement
A) Organ systems can be composed of cells or tissues, but not both. B) The immune system is closely associated with the lymphatic system. C) Organ systems operate independently of each other to maintain life. D) The endocrine system is not a true structural organ system.