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BIOL 1106: EXAM 3
Waterproofing of skin is due to: |
keratin
|
Which is the most numerous kind of gland in the skin? |
eccrine
|
Psoriasis is due to: |
excessive growth of the stratum basal
|
Basal cell carcinoma is the most common of skin cancers, and the most malignant. |
false
|
Which vitamin is produced by the integument? |
vitamin d
|
Sensory receptors are located in the epidermis. |
false
|
The epidermis originates from the___tissue, the dermis originates from the___tissue. |
epithelial; connective
|
Dermal papillae give rise to: |
fingerprints |
Artificial skin is produced by a combination of: |
collagen from cowhide and polysaccharides from shark cartilage
|
Integument consists of the epidermis, dermis, and the hypodermis. |
false
|
Lysozyme is produced by integument and is a |
bactericide
|
Largest organ of the body is: |
integument
|
Rigor mortis occurs because the binding of an ATP molecule is needed for: |
myosin release
|
Muscle is in a relaxed state due to the presence of the: |
h-band
|
What is the functional unit of a muscle? |
sarcomere
|
During muscle contraction, calcium binds to: |
troponin
|
Influx of what ion is responsible for depolarization? |
sodium
|
Reason that your muscles contract as a whole unit than in cellular segments is due to the action of the: |
t-tubules
|
A lack in functionality in___unables you to relax your muscles. |
acetylcholinesterase
|
Systemic circulation carries blood: |
to the general body circulation
|
What closes the gap between open and closed circulatory systems? |
capillaries |
What structure carries blood with the highest oxygen concentration? |
pulmonary vein
|
Smooth muscles don't have sliding filament concept of muscle contraction and therefore don't have bands as seen in skeletal muscle. |
false
|
Vasodilation and vasoconstriction are both under our voluntary control because both processes are regulated by skeletal muscles. |
false
|
What conditions stimulate ethryropoiesis? |
reduction in atmospheric pressure, such as training or vacationing at high altitudes
|
Lymph forms from___and re-ernters the circulatory system___ |
interstitial fluid; via the lymphatic vessel system which drains into the subclavian veins
|
Atrial Natriuretic Hormone is produced by: |
the right atrium
|
Arteriosclerosis could result in the production of: |
thrombi
|
Cholesterol is a___, synthesized in the___, and___. |
steroid molecule; liver; is not produced by plants
|
Wuchereria bancrofti is the organism that causes: |
elephantiasis
|
Insects have tracheal system of respiration and lungs are located at base of Malpighian tubules. |
false
|
What best explains the negative effect of acid rain on the efficiency of cutaneous respiration? |
fick's law
|
Surface area of our alveolar system is about the same surface area as: |
raquetball court
|
Epiglottis protects: |
trachea when swallowing food
|
What gas has the potential to not only react with water molecule, but also has reaction enhanced by enzyme___. |
CO2; carbonic anhydrase
|
Releasing carbon dioxide from tissues and transporting it back to the alveoli is accomplished in___ways. Most CO2 is carried as___in the___. |
three; bicarbonate ion; plasma
|
Chloride shift replaces: |
bicarbonate ion
|
What molecule has the highest affinity for oxygen? |
myoglobin
|
Shallow water blackout is caused by: |
too little CO2
|
Digestion begins in the: |
mouth
|
The pyloric sphincter is between the___and___. |
stomach and small intestine
|
In the stomach, the HCL is produced by the___, and the very high acidity___. |
parietal cells; kills most microorganisms
|
The Bhor Shift explains: |
the release of extra O2 with an increase in H+ concentration
|
Leptin is produced by the: |
adipose cells
|
What type of diabetes is caused by an autoimmune response? |
type 1
|
What type of diabetes is related to a less than healthy nutritional lifestyle and can be prevented? |
type 2
|
The caloric value is determined by: |
a bomb calorimeter
|
Coprophagy: |
feeding of feces a second time to digest microphobes that are digesting the cellulose that didn't get digested on the first pass through digestive tract
|
Carboxypeptidase would be produced by the___and would attack___. |
pancreas; the carboxyl end of a polypeptide
|
Absorption is enhanced by___and absorption through lumen of SI occurs through___. |
villi; capillary system in each villus, as well as a lacteal
|
What stimulates the desire to eat? |
high levels of ghrelin
|
Vitamin K is important in___, and is also produced in our digestive tracts by___. |
blood clotting; bacteria
|
What do right atrium, endothelial cells of blood vessels, and adipose cells have in common? |
they all produce hormones
|
Protein diets are good because excess protein not needed by the body is unable to be used and is excreted from body in urine. |
false
|
One would want to focus on foods that have a high glycemic valus, it provides quick energy fast so one doesn't go hungry. |
false
|