When money is borrowed, interest is typically calculated as a percentage of the principal, the amount owed to the lender. The percentage of the principal that is paid over a certain period of time (typically a year) is called the interest rate. Interest rates are market prices which are determined by supply and demand.
Swollen nipples in dogs is a common symptom seen in mastitis. Mastitis occurs when there is an infection of the mammary glands. Mastitis is common in female dogs who are in the process of nursing. In mastitis, the dog's mammary glands become swollen and painful. The milk is toxic in affected nipples.
Enlarged lymph nodes can be caused by infection, immune disorders or cancer. Skin tumors around the neck region can also cause the appearance of a swollen neck. If your dog is also chewing at her skin it may mean that the swelling and the itching are due to an underlying allergy or skin infection. Some pets are allergic to their collars which can appear as a circular area of hair loss and irritation around the neck.