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Straighterline Anatomy & Physiology I Midterm Exam Review (Latest Update) Questions and Verified ANSWERs| 100% Correct| Grade A
Question: Cell organelle containing most of the genetic material
of the cell; collection of nerve cell bodies within the central nervous system; center of an atom consisting of protons and neutrons
ANSWER: Nucleus
Question: Increased or Decreased rate of diffusion in a
molecule: Increased membrane surface area
ANSWER: Increases
Question: Dilating blood vessels in the skin in an effort to
radiate heat away from the body, is a form of
ANSWER: Negative Feedback
Question: When we have an infection, we often develop a fever.
What is the body trying to accomplish by temporarily raising the body temperature?
ANSWER: Slow the replication of the germ
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Question: What is similar to the negative feedback mechanism
in human physiology?
ANSWER: A toilet tank refills itself after a flush
Question: The ability of the body to maintain all aspects of the
internal environment within preset functional parameters
ANSWER: Homeostasis
Question: A sixty-three-year-old man was diagnosed with
pancreatic cancer. The physiological processes homeostatically
altered would result in the patient no longer being able to:
ANSWER: Control blood glucose levels and proper food
digestion
Question: When a person's core body temperature drops, blood
vessels in the skin and extremities vasoconstrict, diverting blood
into the interior of the body which:
ANSWER: Helps maintain a normal temperature in the major
organs
Question: The major gland of the body responsible for
maintaining the proper core body temperature is the:
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ANSWER: Hypothalamus
Question: A young mother discovers her two-month-old infant
tangled in blankets and not breathing when she checked on her.Initial cause of death was ruled SIDS; however, a subsequent autopsy revealed that the infant's sweat glands were
malfunctioning. This resulted in death because the infant:
ANSWER: overheated and could not produce sweat to cool the
body through evaporation
Question: After eating a meal, the blood glucose levels rise. In
response to this, the pancreas produces insulin, which lowers the
blood glucose levels back to normal. This is a:
ANSWER: negative feedback loop, which reverses or corrects
the original imbalance
Question: While skiing, an eighteen-year-old boy suffered a
complete fracture of the femur bone in his thigh. Upon admission to the hospital, the patient's heart rate was 128 beats per minute. Keeping in mind that bones are highly vascular, the elevated heart rate developed because the fractured femur
caused:
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ANSWER: significant blood loss, reducing total blood volume.
The increased heart rate would maintain adequate blood perfusion to the body tissues despite this reduced volume
Question: Liver function includes the manufacturing of proteins
that are deposited into the blood to control osmosis and promote blood clotting in response to tissue injury. Symptoms you would
expect to see in a person suffering from liver failure would be:
ANSWER: Tissue edema and an uncontrolled GI
(gastrointestinal) bleed
Question: A decrease in blood pressure is measured by ____
found on the wall of blood vessels
ANSWER: Receptors
Question: What step in blood pressure regulation feedback
mechanism is: A decrease in blood pressure is measured by
receptors found on the wall of blood vessels?
ANSWER: Step 1
Question: In the brain stem, the ___ compares the value it
receives to a(n) ___ point