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BIO 264 Exam 1|259 Questions with Complete Solutions
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BIO 264 Exam 1|259 Questions withComplete Solutions
In order to produce two equal halves that are mirror images of each other,
the human body would need to be split along which plane? - -Sagittal
-Which one of the following planes divide the shin and the calf? - -Frontal
-The eye is ______ to the ear - -medial
-The foot is _______ to the knee - -distal
-The shoulder is _______ to the elbow - -proximal
-The spinal column is ______ to the heart - -posterior
-The nose is _____ to the mouth - -superior
-The neck is _____ to the head - -caudal
-If a subject were sawed in half at the waist during a magic show leaving
superior & inferior portions, then they were cutting along the _______ plane -
-transverse
-If you wanted to cut an organ into transverse sections, you would cut it
________ - -90 degree angle long axis
-Which of these divides the thoracic cavity from the abdominopelvic cavity?
- -Diaphragm
-The anatomical term that means "away from the midline of the body" is
_____ - -lateral
-The nose is _________ to the mouth - -superior
-Which of the following is most inferior in location? - -pelvic cavity
-A vertical plane that separates the body into right & left portions is called a
_____ plane - -sagittal
-Cutting off your nose would be a section in the ______ plane - -coronal,
frontal
, -The cavity of the body immediately superior to the diaphragm is the _____
cavity - -thoracic
-Captain Jack Sparrow is in a sword fight with an evil skeleton pirate. If Jack
were to cut off the skeleton's head, his sword would be following which body
plane: - -transverse
-A term that means nearer the attached end of a limb is - -proximal
-A term that means further away from the attached end of a limb is - -distal
-Distal is opposite of - -Proximal
-Physiology is the study of the processes or functions of - -Living things
-HCO3- is the abbreviation for - -Bicarbonate Ion
-Which organ system produces heat? - -Muscular
-Which body organ systems would help maintain blood pH? - -Respiratory
-What is an example of a positive feedback mechanism? - -Uterine
stretching during childbirth
-What are the 3 components of homeostatic control system? - -Receptor
control
effector organ
-Which of the following is NOT a feedback mechanism? Set point, control
center, effector, equilibrator - -Equilibrator
-What kind of feedback loop is this?
Low blood sugar causing the liver to break down glycogen & release sugar
into the blood? - -negative
-What type of feedback loop is this? Internal bleeding causing the heart rate
to increase? - -negative
-What type of feedback loop is this? When the release of estrogen from the
ovary shuts down the production and release of more estrogen - -negative
-What type of feedback loop is this? High body temperature causing muscle
shivering & increased metabolism - -positive
-regarding the body, homeostasis is maintaining a constant _____ ______ &
______ _______ of a particular variable - -internal environment, normal range
, -Positive feedback can create a cycle that leads away from _____ - -
homeostasis
-What is an example of a beneficial deviation from normal set point in
homeostasis - -high blood pressure during exercise
-Blood pressure decreases & the body responds in a way that causes the
blood pressure to decrease even more. What type of feedback is this? - -
Positive
-Name 3 ways the body systems try to maintain homeostasis - -
hyperventilation
shivering
increased heart rate
-homeostasis is the maintenance of a variable around a ____ _____ - -set
point
-Why does a person with a fever shiver but is hot to the touch? - -set point
increased
-Johnny eats 3 glazed donuts for breakfast, which causes his blood glucose
levels to increase. In response to this, his pancreas secretes insulin, which
results in the transfer of glucose from the blood into the cells. This process
decreases Johnny's blood glucose and he starts to feel hungry again. Johnny
is studying for a test & doesn't have time to go home for lunch. As his blood
glucose levels continue to drop, his pancreas then secretes glucagon.
Johnny's liver then responds by releases glucose into the blood. Which of the
following statements about this scenario is correct?
1. Blood sugar level is the set point in this scenario
2. The release of insulin helps with negative feedback
3. The release of glucagon helps with negative feedback
4. The release of insulin helps with positive feedback
5. The release of glucagon helps with positive feedback - -1, 2, 3
-Bob has just finished donating plasma to earn some extra money. Donating
plasma took longer than he thought and he is in a hurry to meet up with
some friends. As he stands up and starts to walk toward the door he begins
to feel light-headed due to decreased blood flow to his brain. Luckily, another
person saw Bob beginning to faint and caught him just in time. When Bob
awakes he is told that he fainted due to orthostatic hypotension; a rapid drop
in blood pressure. Fainting helps Bob's body restore homeostasis by
__________. - -increasing blood pressure & blood flow to head
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