Explain the influence of arterial blood pressure on tissue perfusion
What will be an ideal response?
The blood flow to a tissue through a capillary bed is known as tissue perfusion. Tissue perfusion is largely a function of arterial blood pressure. For instance, if arterial blood pressure is too high, blood will not be adequately delivered to the tissues and they will be poorly perfused. Increases in arterial pressure lead to arterial vasoconstriction. Blood flow slows via the myogenic mechanism so that tissue perfusion can be maintained at a constant level.
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Loss of voluntary movement is called ________________________________________
Fill in the blank(s) with correct word
Information stored in the nucleus is translated into
A) phospholipids. B) proteins. C) lipids. D) carbohydrates. E) None of the answers are correct.
Familial dysautonomia is a rare genetic disorder of the autonomic nervous system. Problems include difficulty in feeding and respiration, vasomotor instability, insensitivity to pain, and ataxia (an unsteady gait). Patients with this syndrome have low numbers of autonomic neurons, probably related to defects in production and/or survival of the neural crest precursors of these neurons. Which of the following structures would not be affected by this disorder?
(A) Pyloricsphincter (B) Abdominalaorta (C) Teniaecoli (D) Diaphragm (E) Hepatopancreatic sphincter
Helper T-lymphocytes primarily contain the CD8 coreceptor.
Answer the following statement true (T) or false (F)