Answer:
infections
Explanation:
infections because infections first react on skin
Parents should be there to protect you so even if you feel alone or down just know that they will love you no matter what happens even if you make good or bad mistakes. Parents can be a bit harsh sometimes but they are just trying to make you prepare for what is going to happen in life when we get older. So you should always love your parents even if they make you mad sad or even alone, Here is a task for you I want you to go up to your parents and hug them saying thank you for what you are doing to have a better life.
And parents are just parents gotta love them am I right?
<span>Forced withdrawal from school or college
Loss of connection to faith or religion
Career disruptionIsolation from friends and family
Suicide</span>
The
physical effects of starvation are often irreversible, and reflect the
extremely high rate of deaths associated with anorexia nervosa:
<span>Infertility
Shutdown of major body systems
Brain damage
Heart attacks
and
<span>Death</span></span>
Structure and function of the villi is described below.
Explanation:
- Intestinal villi are small, finger-like projections that extend into the lumen of the small intestine.
- Each villus is approximately 0.5–1.6 mm in length (in humans), and has many microvilli projecting from the enterocytes of its epithelium which collectively form the striated or brush border. Each of these microvilli are much smaller than a single villus. The intestinal villi are much smaller than any of the circular folds in the intestine.
-
Villi increase the internal surface area of the intestinal walls making available a greater surface area for absorption.
- increased surface area (in contact with the fluid in the lumen) decreases the average distance travelled by nutrient molecules, so effectiveness of diffusion increases. The villi are connected to the blood vessels so the circulating blood then carries these nutrients away.
Function :
- There, the villi and the microvilli increase intestinal absorptive surface area approximately 30-fold and 600-fold, respectively, providing exceptionally efficient absorption of nutrients in the lumen.
- There are also enzymes (enterocyte digestive enzyme) on the surface for digestion. Villus capillaries collect amino acids and simple sugars taken up by the villi into the blood stream. Villus lacteals (lymph capillary) collect absorbed chylomicrons, which are lipoproteins composed of triglycerides, cholesterol and amphipathic proteins, and are taken to the rest of the body through the lymph fluid.
- Villi are specialized for absorption in the small intestine as they have a thin wall, one cell thick, which enables a shorter diffusion path. They have a large surface area so there will be more efficient absorption of fatty acids and glycerol into the blood stream. They have a rich blood supply to keep a concentration gradient.
