Quinn was driving his car on an icy road when the back end started to skid out of control. His car crossed the centerline, and he could see the headlights of rapidly approaching oncoming traffic. His entire body became energized. His heart rate and respiration increased, and he began to perspire profusely. According to Selye’s general activation syndrome (GAS), Quinn was experiencing:

Answer:

D -- repetitive motion is the correct answer.

Explanation:

repetitive motion causes chronic strains.

Chronic strains are the result of repetitive motions of the muscles, tendons, over-use of muscles over a prolonged period.

A strain is caused by bending or twisting a muscle and tendon.

Strains are of two types  

• Acute strains: are caused by lifting the heavy objects improperly and by over stressing muscle.

• Chronic strain: caused by repetitive movement of tendons and muscles.

THE ANSWER IS D IM SURE REPETITIVE MOTION

Answer:

d. immune system

Explanation:

Depending on the nature of the infectious agent, the immune response will use its most effective resources. In viral infections different mechanisms develop, both against the free virus and against the infected cell.

Viruses need the cellular machinery they infect to synthesize their proteins. They are intracellular parasites that depend on the infected cell to be able to carry out their replication. Viruses generally have very simple forms, composed of proteins and a nucleic acid, although their structure and composition is very variable. They are classified by virtue of the nucleic acid they carry in: DNA and RNA viruses, and by their form and structure in different families

The most active natural response mechanisms against viral infections are mediated by interferon and the activation of NK cells. These mechanisms are more directed towards infected cells.

Interferon is a cytokine of which three types are known, called: α, β and γ. The first two are mainly produced by monocyte-macrophages and to a lesser extent by fibroblasts, while interferon γ is produced by CD4 and CD8 lymphocytes and NK cells. Interferon has a great antiviral capacity, inducing different mechanisms, such as: transient resistance of cells inducing different molecules with antiviral activity, activating genes that express antiviral proteins and increasing the expression of SLA I and SLA II.

Answer:

Explanation:

b

Answer and Explanation: We know that starting an exercise regime is very demanding and physically challenging job. All kind of exercise regime includes strength games as well as cardiovascular games. During cardiovascular games heart and lungs play very important role, your heartbeat increases and a lot of pressure is buildup on your lungs. Any medical condition in which you cannot use full capacity your heart and lungs is to be taken into consideration before planning any such activity. Some of the medical conditions are:

• Cardiovascular diseases: Medical conditions related to heart can cause sudden death upon extreme exertion.

• Respiratory diseases: Medical conditions such as acute lung infections and asthma can kill a person by choking him/her if involved in extreme strenuous games.

• Arthritis issues: Your bones becomes weak and are prone to break down in no time, thus they are advised not to put extreme strain on bones to avoid any irreparable damage.