Answer: Homeostasis refers to stability, balance, or equilibrium within a cell or the body. It is an organism’s ability to keep a constant internal environment. Homeostasis is an important characteristic of living things. Keeping a stable internal environment requires constant adjustments as conditions change inside and outside the cell. The adjusting of systems within a cell is called homeostatic regulation. Because the internal and external environments of a cell are constantly changing, adjustments must be made continuously to stay at or near the set point (the normal level or range). Homeostasis can be thought of as a dynamic equilibrium rather than a constant, unchanging state.
Feedback Regulation Loops
The endocrine system plays an important role in homeostasis because hormones regulate the activity of body cells. The release of hormones into the blood is controlled by a stimulus. For example, the stimulus either causes an increase or a decrease in the amount of hormone secreted. Then, the response to a stimulus changes the internal conditions and may itself become a new stimulus. This self-adjusting mechanism is called feedback regulation.
Feedback regulation occurs when the response to a stimulus has an effect of some kind on the original stimulus. The type of response determines what the feedback is called. Negative feedback occurs when the response to a stimulus reduces the original stimulus. Positive feedback occurs when the response to a stimulus increases the original stimulus.
Explanation:
True, because if you look at your feet all the time, you'll bump into someone.
Same thing for on the road.
Answer:
A. Assess the client's level of pain and administer prescribed analgesics.
Explanation:
The cardinal or major symptom of myocardial infarction (MI) is persistent, crushing substernal pain or pressure. Therefore nurse should first assess the client's pain and prepare to administer anagelsics like, Nitroglycerin or Morphine for pain control. The Nurse must ensure that the client is medically stabilized before pulmonary artery catheterization can be used as a diagnostic procedure. Anxiety and a feeling of impending doom are characteristic of MI, but the priority is to stabilize the client medically. Don't forget to inform the client and his family about every step of the recovery process, this action isn't really of top priority when treating a client with a suspected MI.
Answer:
Hemiparesis.
Weakness in one side of the body. Her presentation suggests she might have had a cerebrovascular accident (CVA) also called a stroke.
Answer:B
Explanation:Synovial joints are the most common type of joint in the body The joint cavity contains synovial fluid, secreted by the synovial membrane (synovium), which lines the articular capsule. This fluid-filled space is the site at which the articulating surfaces of the bones contact each other.
