The linea alba is a fibrous structure that runs down the midline of the abdomen in humans and other vertebrates.
Skin acts as a barrier between invaders (pathogens) and your body.
Digestive system defense has enzymes. The enzymes in your stomach, pancreas, and liver help destroy pathogens.
The circulatory system contains immune cells called lymphocytes, which protect the body against antigens (viruses, bacteria, etc. ) that invade the body.
The respiratory system is a layered defense mechanism which relies on components of both the innate and adaptive immune systems to protect the lungs and the rest of the respiratory tract against inhaled microorganisms.
The body’s innate immune system (nervous system), its first line of defense, recognizes infectious microorganisms such as bacteria, and initiates a generalized short-acting response while summoning the body’s adaptive immune cells to mount a sustained and targeted attack.
The correct answer is 8 people. It is considered that in the year 2011, approximately 8 people died every day due to motor vehicle accidents or collisions. These accidents may be caused by a series of factors, such as reckless driving, driving under the influence of liquor and also driving unsafely or using rough maneuvers.
You inhale when contracting muscles and exhale when finishing a rep.
The reason people cry are for two reasons; One Reflex: the tears are cause by a reflex, from irritants such as wind, smoke, or onions. They are released to flush out these irritants and protect the eye. Emotional: Humans shed tears in response to a range of emotions. These tears contain a higher level of stress hormones than other types of tears.
-Hope this helps-
