GENERAL HISTOLOGY

Detailed explanation-1: -As a person gets dehydrated, their blood becomes thicker and harder to pump. As this happens, the kidneys stop producing urine and the water from urine is redirected for use in the blood. As a person’s blood sugar lowers, the pancreas releases a chemical called glucagon to return the blood sugar back to normal.

Detailed explanation-2: -When you’re dehydrated, you lose blood volume, which causes your blood to get thicker. That makes it harder for your heart to supply that blood to your muscles. As your heart works harder to pump that blood, your heart rate increases.

Detailed explanation-3: -Two early signs of dehydration are thirst and dark-coloured urine. This is the body’s way of trying to increase water intake and decrease water loss. Other symptoms may include: dizziness or light-headedness.

Detailed explanation-4: -Negative feedback reverses or shuts off a stimulus. When the body is experiencing dehydration, antidiuretic hormone is secreted, which works to decrease urine production, allowing the body to conserve fluids. When the body’s fluids are replaced, negative feedback turns off antidiuretic hormone secretion.

Detailed explanation-5: -Dehydration causes the hypothalamus to release ADH (antidiuretic hormone) via the posterior pituitary gland. The ADH signal tells the kidneys to recover water from urine, which dilutes the blood plasma.