Ch. 1:Intro To Physiology Flashcards
How are functions initiated in controlled
Physical events -contraction of the heart and skeletal muscle
chemical events-Energy for contraction
What is the difference between anatomy and physiology
Anatomy is what is this in physiology is how does it work
What are some organ systems of the body
Integumentary System Nervous system endocrine system skeletal system Muscular System Circulatory system Immune system Respiratory system
What are the levels of organization in order from smallest to largest
Chemical cellular tissue organ system organism
What happens in the organism level
Proper function of the organism is dependent upon the function of individual systems
What happens in the system level
Collection of organs that work together to perform various tasks
What happens in the organ level
Two or more types of tissues working together to perform various tasks
What is a tissue
Functional grouping (aggregation) of cells
What are four primary types of tissues
Muscle
nervous
Epithelial tissue
Connective tissue
What is a cell
Basic unit of structure and function
Smallest unit capable of carrying out processes associated with life
Trillions of cells, variety of different types/sizes/shapes and abilities
What is an Atom
Smallest building blocks
Oxygen, carbon, nitrogen, and hydrogen
Atoms combined to form _________
Molecules
Some examples are carbohydrates, fat, proteins, nucleic acids
What are molecules
The raw ingredients that are used to form a cell and allow it to function
What is the difference between parasympathetic and sympathetic nervous system?
When does heart rate increase or decrease?
Parasympathetic is at rest in sympathetic is during activity
Heart rate increases during sympathetic nervous system and decreases during parasympathetic nervous system
What is an example of functions that each system controls
CVS delivery of blood to cells throughout the body