Chihuahua (dog) The affected chihuahua will hold its leg flexed, and foot off the ground until the quadriceps muscle relaxes and lengthens, after which the animal feels no discomfort and continues with activity. Chihuahuas are also prone to some heart-related disorders, such as heart murmurs and pulmonic stenosis, a condition in which the blood outflow from the heart's right ventricle is obstructed at the pulmonic valve. Chihuahua (dog) The Chihuahua () is the smallest breed of dog and is named after the state of Chihuahua in Mexico. Chihuahuas come in a wide variety of colors, and two coat lengths. The Chihuahua's history
Breed type (dog) line" This terminology is incorrect. The word "type" in reference to a dog refers specifically to the description of what defines that breed and what makes that breed of dog different from every other breed, as can be found in that breed's written Standard. When comparing dogs of the same breed, you look at "type" first and foremost, and then you look for different "styles" of dogs within that breed. The term "style" refers to characteristics that are different in each dog that already has "breed type". There can be a vast variety of "styles" existing in each breed of