1.1 An introduction to the human body Read Online
1.2 The chemical level of organization Read Online
After studying this chapter, you will be able to:
Though you may approach a course in anatomy and physiology strictly as a requirement for your field of study, the knowledge you gain in this course will serve you well in many aspects of your life. An understanding of anatomy and physiology is not only fundamental to any career in the health professions, but it can also benefit your own health. Familiarity with the human body can help you make healthful choices and prompt you to take appropriate action when signs of illness arise. Your knowledge in this field will help you understand news about nutrition, medications, medical devices, and procedures and help you understand genetic or infectious diseases. At some point, everyone will have a problem with some aspect of his or her body and your knowledge can help you to be a better parent, spouse, partner, friend, colleague, or caregiver.
This chapter begins with an overview of anatomy and physiology and a preview of the body regions and functions. It then covers the characteristics of life and how the body works to maintain stable conditions. It introduces a set of standard terms for body structures and for planes and positions in the body that will serve as a foundation for more comprehensive information covered later in the text. It ends with examples of medical imaging used to see inside the living body.
Question: What are the basic tenets of cell theory?
Choices:
The cell is the simplest structural and functional unit of life.
All organisms are composed of cells and cell products.
An organism's structure and functions are due to the activities of its cells.
Cells come only from the reproduction of existing cells.
Cells of all species have many fundamental similarities.
Question: What percentage of Cholesterol makes up the plasma membrane?
Choices:
75%
20%
5%
Question: Extensions of plasma membrane. Increase surface area for absorption on some cell types. Some contain a protein called actin which assists in transporting absorbed substances.
Choices:
Flagella
Cilia
Motile Cilia
Microvilli
Sensory Cilia
Question: The Glycolax
Choices:
Enables the immune system to recognize and attack invaders, forms the basis of compatibility for tissue or organ transplants, and binds cells together so tissues do not fall apart.
Found in the respiratory tract, brain ventricles, and reproductive system.
Found in inner ear, retina, and nasal cavity.
Allows for the secretion and/or replacement of plasma membrane
Transports substances across a cell.
Question: Which protein adheres to the membrane surface and is anchored to the cytoskeleton?
Choices:
Transmembrane
Peripheral
Question: Which protein passes completely through the membrane, is composed mostly of glycoproteins, and is very important in nerve signal and muscle concentration?
Choices:
Peripheral
Transmembrane
Transmembrane
Question: Which protein has some channels that are always open and some that open and close in response to stimuli?
Choices:
Transmembrane
Peripheral
Question: Single, non-motile cilium found on nearly every cell. Hair-like process.
Choices:
Flagella
Cilia
Motile Cilia
Microvilli
Sensory Cilia
Question: What percentage of molecules in the plasma membrane are lipids?
Choices:
89%
93%
98%
75%
Question: What percentage of Phospholipids make up the plasma membrane?
Choices:
75%
20%
5%
Question: What percentage of Glycopolids make up the plasma membrane?
Choices:
75%
20%
5%
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