Aorta (Definition) The aorta is the largest artery in the body, leaving directly from the left ventricle of the heart to supply blood to the entire body. It is made of elastic tissue layers called intima and is subject to damage by high blood pressure, smoking, cholesterol, and inherited risk factors. ...Read more.
Puppies need five minutes of exercise per month of age up to twice a day, according to the U.K. Kennel Club. In other words, a 3-month-old puppy will need 15 minutes of exercise while a 4-month-old will need 20 minutes. This may take the form of low-impact activities like swimming or playing with small dog exercise balls. You can also take your puppy out for short walks on a leash.
Healthy adult dogs in their prime of life generally average about 14 hours of sleep each day. Young puppies generally need 18 to 20 hours, while aging dogs also tend to sleep longer the older they get. Dogs who have a lot to do generally sleep less.