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14 Cards in this Set

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  • Back
What is anatomy?
Anatomy is the study of the structure of an organism and the relationships of its parts.
What is physiology?
Physiology is the study of the functions of living organisms and their parts.
What are the major levels of organization in the body?
Chemical level, cellular level, tissue level, organ level
How is a tissue different than an organ?
Tissues are an organization of many similar cells, whereas organs are groups of several different kinds of tissues arranged so that they can together act as a unit to perform a special function.
What is the anatomical position?
The anatomical position is a reference position that gives meaning to the directional terms used to describe the body parts and regions.
Why are the anatomical directions listed in pairs?
Anatomical directions describe relative positions of the body and are placed in pairs to understand them better.
What is meant by a section of the body?
Section is a term used to describe the subdivisions or smaller segments of the body.
What are the two major cavities of the body?
Ventral and dorsal body cavities
What is the difference between the abdominal cavity and the abdominopelvic cavity?
The abdominal cavity includes only the abdomen; the abdominopelvic cavity is the inclusion of the abdominal cavity and the pelvic cavity.
What is the difference between the axial portion of the body and the appendicular portion of the body?
The axial portion of the body consists of the head, neck, and torso or trunk; the appendicular portion consists of the upper and lower extremities.
What are some of the regions of the upper extremity and lower extremity?
Upper extremity is divided into arm, forearm, wrist, and hand components. Lower extremity is the leg, ankle, and foot components.
Why is homeostasis also called "balance" of body function?
Homeostasis is called “balance” of body function because it is the relative constancy of the internal environment.
What is a feedback loop and how does it work?
A feedback loop is a self-regulating, highly complex, and integrated communication control system within the body. It works by a sensor that detects changes and provides information (feedback) to the control center, which compares that information to the norm and responds by activating the effector, which has an effect on the controlled condition.
How does negative feedback differ from positive feedback?
Negative feedback loops oppose, or negate, a change in a controlled condition, whereas positive feedback control loops are stimulatory—they temporarily amplify the change that is occurring.