A & P I: Ch 1

Receptor

A cell or organ specialized to detect a stimulus

Effector

A molecule, cell, or organ that directly carries out a response to a stimulus

Organism

A single complete individual capable of response to stimuli, reproduction, growth and development, and maintenance of homeostasis is termed a(n)

Tissue

An aggregation of cells and extra-cellular materials, which perform a discrete function

What is the smallest particle of matter with a unique chemical identity?

Atom

What is the study of how different species have solved physiological problems of life called?

Comparative anatomy

(T/F): A negative feedback system tends to strengthen or reinforce a stimulus

False

Without the expenditure of energy, the next movement of matter in a physiological gradient will always be from a region of ________ concentration to a region of ________ concentration.

Higher; Lower

Molecule

Made up of two or more atoms

What is an anatomical structure that is composed of at least two different tissue types, has recognizable structural boundaries, and has a discrete function different from the structures around it called?

Organ

What is a group of organs with a unique collective function called?

Organ system

What is a microscopic structure in a cell that carries out individual functions called?

Organelle

Integrating Center

Part of a feedback mechanism that processes information, relates it to other information, and makes a decision of action.

Auscultation

The act of listening to sounds made by the body in a physical examination

Inspection

The act of looking a the body

Plasma

The structure that encloses a cell and controls the traffic of molecules in and out of the cell is the ______ membrane.

Scientific method

Which of the following is a process by which an educated guess is capable of being tested and may be proven false by experimentation? a. Socratic Method b. Scientific Hypothesis c. Scientific method

Comparative physiology

Which of the following studies how the human body functions by examining how other species function?

During a physical examination, percussion is often used. Which describes what is meant by percussion? a. The act of looking at the body b. Performing a physical examination by listening to sounds in the body c. Tapping on a body surface then listening to the echo to diagnose health d. Examination by feeling the body surface

c. Tapping on a body surface then listening to the echo to diagnose health