{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Chapter 8 water and alcohol

Chapter 8 water and alcohol - Chapter 8 Water and Alcohol...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 8 - Water and Alcohol Fluids - Substances composed of freely moving molecules - Have the ability to conform to the shape of their container *50-70 % of a healthy adult’s body is composed of fluids. About 2/3 of the body’s fluid is held within cells. The remaining 1/3 is outside our cells and composed of: tissue fluid found between the cells within tissues and organs of the body. plasma , the fluid portion of blood that carries the blood cells. The body fluid composition of tissue varies by: tissue type – lean tissues have higher fluid content than fat tissues Muscle ~ 70% Fat ~ 10% gender – males have more lean tissue and therefore more body fluid age – lean tissue is lost with age, and body fluid is lost with it Infants ~75% lderly ~ 50% Functions of Fluids - Fluids dissolve and transport substances. - Water is an excellent solvent because it can dissolve many different substances. **Substances dissolved in body fluids include ions, sugars, amino acids, vitamins, and minerals. **Soluble waste are eliminated via urine made from body water
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
**Fluids account for blood volume. Blood volume is the amount of fluid in the blood. - Increased blood volume can cause blood pressure to rise. - Decreased blood volume can cause low blood pressure. Fluids help maintain body temperature. - Much external energy is required to raise the temperature of water. This helps the temperature of our body fluids remain quite stable. - Sweating releases heat as the evaporation of water from the skin cools t he skin and blood. Fluids protect and lubricate body tissues. - Cerebrospinal fluid protects the brain and spinal column. - Amniotic fluid protects the fetus. Fluids within our joints act as a lubricant. - Digestive secretions allow for easy passage of material. Maintaining Fluid Balance - Any water lost from the body must be replaced. - Water is lost through urine, sweat, exhalation, and feces.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 10

Chapter 8 water and alcohol - Chapter 8 Water and Alcohol...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon bookmark
Ask a homework question - tutors are online