Explain why anatomic position is used
Anatomic position is used as a standardized reference point in anatomy and physiology because it provides a consistent and common frame of reference for describing and studying the human body. This position serves as a universal starting point for communication and understanding among healthcare professionals, researchers, and anatomists.
Anatomic position is defined as follows:
- The person stands upright with their feet flat on the ground and parallel to each other.
- The arms are extended at the sides of the body, with the palms facing forward and the thumbs pointing away from the body.
- The head is held erect and facing forward.
Using anatomic position allows for accurate and consistent descriptions of anatomical structures and relationships. It eliminates confusion and ensures that everyone is on the same page when discussing the human body. For example, when referring to the location of an organ or a bone, it is essential to have a common reference point to avoid misunderstandings.
Anatomic position also aids in the understanding of anatomical terminology. Terms such as superior (above), inferior (below), anterior (front), and posterior (back) are based on the anatomic position. Without this standard position, it would be difficult to describe the relationship of various body parts accurately.
In addition, anatomic position provides an ideal and neutral starting point for conducting medical examinations and diagnostic procedures. Clinical assessments can be more precise when comparing a patient's position to the anatomic position. For instance, doctors can determine if a joint is flexed or extended by comparing it to the original position.
Overall, anatomic position is crucial for effective communication, accurate description, and standardized understanding of the human body's structure and function. It serves as a fundamental reference point, facilitating education, research, and healthcare practices.
Evaluate the following expression when x = 5: 8(2x+6)
To evaluate the expression when x = 5, substitute 5 for x in the given expression:
8(2x + 6) = 8(2(5) + 6)
= 8(10 + 6)
= 8(16)
= 128
So, when x = 5, the expression 8(2x + 6) evaluates to 128.
Evaluate the following expression: 3x+6−y
when x = 2 and y = 5
To evaluate the expression when x = 2 and y = 5, substitute 2 for x and 5 for y in the given expression:
3x + 6 - y = 3(2) + 6 - 5
= 6 + 6 - 5
= 12 - 5
= 7
So, when x = 2 and y = 5, the expression 3x + 6 - y evaluates to 7.
Evaluate the following expression: 5c−2k
when c = 7 and k = 3
To evaluate the expression when c = 7 and k = 3, substitute 7 for c and 3 for k in the given expression:
5c - 2k = 5(7) - 2(3)
= 35 - 6
= 29
So, when c = 7 and k = 3, the expression 5c - 2k evaluates to 29.
Evaluate the following expression: 2(k3+h−e)
when h = 18, k = 2, and e = 7
To evaluate the expression when h = 18, k = 2, and e = 7, substitute these values into the given expression:
2(k^3 + h - e) = 2(2^3 + 18 - 7)
= 2(8 + 18 - 7)
= 2(26 - 7)
= 2(19)
= 38
So, when h = 18, k = 2, and e = 7, the expression 2(k^3 + h - e) evaluates to 38.