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27 Cards in this Set
- Front
- Back
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A person who sits for hours on a long airplane flight will have problems with blood pooling below the knees. Why? |
The skeletal muscle pump below the knees is not helping blood return to the heart. |
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T or F: At the end of a capillary, blood pressure is more important than osmotic pressure to cause water to exit the capillary. |
True |
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If cells lacked ribosomes, it would not be able to |
Synthesize proteins |
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The best description for the two components of blood are: |
Formed elements and plasma |
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T or F: The cardiac muscle is supplied with nutrients from the blood within the heart itself. |
False |
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T or F: All veins carry oxygen-poor blood. |
False |
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Which type of bond is responsible for holding two water molecules together? |
Hydrogen |
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Joining small molecules (monomers) together to form longer chains (polymers) require a process called |
A dehydration reaction |
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What can cross the plasma membrane because of its selective permeability? |
Gases, such as oxygen and carbon dioxide |
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T or F: If temperature were controlled by a positive feedback mechanism, the body's temperature would continue to rise. |
True |
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What are the 2 components of the cardiovascular system? |
Heart and blood vessels |
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What statement most correctly defines homeostasis? |
Cells and organisms must be able to maintain a fairly constant internal environment. |
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Often when a person is admitted to the hospital, an intravenous solution of normal saline is begun. Since this does not harm the patient, which is the tonicity of normal saline compared to your blood? |
Isotonic |
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Which is not a function of the integument? |
Production of white blood cells |
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After the scientific method has been carried out, the results must be ______ in order to considered valid in the scientific community. |
Reproducible |
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What are the 2 forms of fibrous connective tissue? |
Loose fibrous and dense fibrous |
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The correct order of increasing complexity/organization? |
Cells Tissues Organs Organ Systems Organism |
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In the fluid-mosaic model of the plasma membrane, the phospholipid molecules are oriented so that the ______ heads are facing the outside environment and the ______ tails are facing the interior of the membrane. |
Hydrophilic, Hydrophobic |
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What is a stent? |
A cylinder of expandable metal mesh |
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Which type of tissue covers body surfaces and lines body cavities? |
Epithelial tissue |
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What is NOT one of the four classes of organic molecules found in cells? |
Vitamins |
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Normal blood pressure is 120/80. What is the top number called and what is happening in the heart? |
Systolic pressure, ejection of blood from the heart |
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Which structures brings blood to the heart from the systemic (body) circuit? |
Fck if I know |
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A tentative explanation to be tested is called |
A hypothesis |
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Be has an atomic number of 4 and an atomic mass of 9. How many protons does it have? |
4 |
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T of F: The primary level of protein structure is composed of amino acids in a linear sequence joined by peptide bonds. |
True |
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The specialized cells in the nervous system that serve to conduct a signal are known as |
Neurons |
