Human Physiology Quiz

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Questions and Answers

What is the term used for positively charged ions?

  • Colloids
  • Cations (correct)
  • Anions
  • Hydrogens

Which condition is characterized by glare and blurred vision due to opaque areas in the lens?

  • Cataracts (correct)
  • Glaucoma
  • Presbyopia
  • Macular degeneration

Which ion is mainly responsible for stabilizing the resting membrane potential of muscles?

  • Calcium
  • Sodium
  • Magnesium
  • Potassium (correct)

What type of fluid is interstitial fluid classified as?

<p>Extracellular fluid (C)</p> Signup and view all the answers

During inflammation, what leads to localized edema in inflamed tissues?

<p>Increased capillary blood flow (D)</p> Signup and view all the answers

Which vitamin is known not to have antioxidant properties?

<p>Vitamin D (B)</p> Signup and view all the answers

What is receptive aphasia characterized by?

<p>Inability to understand written or spoken language (B)</p> Signup and view all the answers

Which nutrient is essential for the physiological component of the immune system known as mucus?

<p>Biotin (D)</p> Signup and view all the answers

What condition is indicated by a patient unable to express names of common objects or ideas?

<p>Expressive aphasia (C)</p> Signup and view all the answers

What causes a decrease in extracellular fluid volume in the case of hemorrhage?

<p>Loss of fluids (A)</p> Signup and view all the answers

Which type of carbohydrate does not break down into simpler units?

<p>Dextrose (B)</p> Signup and view all the answers

What generally happens to color perception for blue, violet, and green with aging?

<p>Declines due to degenerative changes (A)</p> Signup and view all the answers

Which amino acid is considered indispensable and cannot be synthesized by the body?

<p>Lysine (A)</p> Signup and view all the answers

What is the mechanism of osmosis in relation to fluid movement within the body?

<p>Passive movement of water molecules across semi-permeable membranes (B)</p> Signup and view all the answers

Which enzyme in saliva begins the process of converting cooked starch into maltose?

<p>Ptyalin (D)</p> Signup and view all the answers

What term describes the passive movement of electrolytes down their concentration gradient?

<p>Diffusion (D)</p> Signup and view all the answers

Flashcards

Cations

Positively charged ions.

Anions

Negatively charged ions.

Presbyopia

Diminished ability to focus on close objects.

Cataracts

Opaqueness in the lens causing glare and blurred vision.

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Glaucoma

Increased intraocular pressure causing vision loss.

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Macular Degeneration

Blurring or distortion of central vision.

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Interstitial Fluid

Fluid outside blood vessels, between cells.

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Edema

Fluid buildup in tissues, often causing swelling.

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Expressive Aphasia

A language disorder where a person cannot express themselves verbally, despite understanding language.

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Global Aphasia

A severe language disorder where a person cannot understand or produce language.

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Chronic Heart Failure

A condition where the heart can't efficiently pump blood, leading to fluid buildup.

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Extracellular Volume Deficit

A decrease in the amount of fluid outside the cells of the body.

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Monosaccharide

A simple sugar that cannot be broken down into smaller sugars.

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Polysaccharide

A complex carbohydrate made of many simple sugars linked together.

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Reduced Tactile Sensation

A decreased ability to feel touch, pain, or other sensations through the skin.

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Active Transport

The movement of electrolytes across a membrane against their concentration gradient, using energy.

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