UNIT 1,2&3 Flashcards
Branch of Biology that deals with the normal functions and activities of living organisms and their parts.
PHYSIOLOGY
2 Goals of Physiology
Responses to stimuli
keeps internal balance (homeostasis)
•Examine the function of individual cells.
•Explores interactions between different organs to form organ systems.
•Focuses on understanding how specific organ works.
•Investigate the complex workings of the nervous system.
•Studies the E system and its hormones.
Cellular Physio
Systematic Physio
Organ Physio
NeuroPhysio
Endocrine Physio
•Examine mechanics of muscle contraction.
•Explore function of heart & blood vessels.
•Focuses on mechanics of breathing.
•Studies process of digestion.
•Examine function of kidneys.
Muscle Physiology
Cardiovascular Physiology
Respiratory Physiology
Digestive Physiology
Renal Physiology
•Investigate reproduction
•Compares Physiological processes
•Focuses on understanding how various physiological systems interact and collaborate
•Explore how organisms adapt to diff environments.
Reproductive Physiology
Comparative Physiology
Integrative Physiology
Environmental Physiology
Enumerate
Why Study Physiology?
8 Reasons
Medicine
Health and Wellness
Research
Education
Biotechnology and industry
Public Health
Sports & Exercise Science
Environmental Science
MEDICINE
• knowledge of physiological processes
to diagnose and treat diseases.
• Perform procedures
• guide medical professionals
Diagnosis and treatment
Surgical procedures
Patient care
HEALTH AND WELLNESS
• understanding phy. basis of Diseases. enables dev. of preventive measures.
Preventive care
RESEARCH
• Deeper unders. of diseases mechanisms.
• how drugs interact with the body.
• study specific processes in controlled environment.
Advancing medical knowledge
Drug development
Experimental studies
EDUCATION
- needs strong understanding to provide high-quality Care
- basic understanding of life process
Medical Training
BIOLOGY & LIFE SCIENCE
PUBLIC HEALTH
Study patterns of disease occurrence, transmission, etc.
inform health & regulations.
Epidemiology
Health Policy
SPORTS & EXERCISE SCIENCE
- optimize training programs.
- understand how body responds to exercise & injuries.
Perform Enhancement
injury recovery
ENVIRONMENTAL SCIENCES
Understand how org. adapt to envi. changes.
Adaptation
Enumerate
Name 6 levels of organization in living systems
Chemistry
Cell
Tissue
Organ level
Organ system
Organism
• Any living things
• Atom combine to form molecules
• composed of 2 or more tissues
Organism level
Chemical level
Organ level
• Molecules form organelles
• has 4 types
Cell level
Tissue level
4 types of tissues
Epithelial T.
Nervous T.
Muscular T.
Connective T.
Enumerate (or not)
What are the major organs?
11 types
Stomach
Lungs
Trachea
Brain
Thyroid Gland
Liver
Heart
Thymus
Urinary system
Gallbladder
Spleen
Enumerate (or not)
12 types of organ systems
Integumentary system
Skeletal system
Muscular system
Nervous system
Endocrine system
Cardiovascular system
Lymphatic system
Respiratory System
Digestive System
Urinary system
Female reproductive system
Male reproductive system
Ability to maintain a stable and relatively constant internal environment despite external changes.
Homeostasis
Example of homeostasis
Temperature
Ph
Blood glucose levels
Red-eared slider turtle
Male ___°C below
Female ___ °C above
Between the _____° balance
28°
31°
28-31°
Macroclemys
Female __°C above
Male __°C between
28°
22-28°
Emys obicularis
Male __°C below
Female __°C above
25°
30°
KEY COMPONENTS
Ideal or optimal level of the variable
Human body temp 37°C ___
Set point
98.6°F
KEY COMPONENTS
- Has 2 types of negative and positive
- organs, tissues or cells that carry out the control centers command
- continuously monitor internal conditions
- Located in the brain
Feedback loops
Effectors
Sensor / Receptors
Control centers
Homeostasis maintained 2ru diff control system in our body.
Control system
Primary mechanism
Amplifying response to achieve specific outcome
NEGATIVE FEEDBACK MECHANISMS
POSITIVE FEEDBACK MECHANISMS
Negative feedback loops
Positive feedback loops
Stimulation - dev of stimuli
Reception - control unit receives changes
Processing- the brain serves as the loop’s control unit
Counteract on the stimuli - control unit sends out signals
Stimulation - initiates the PFL in order to complete a process in the initial step
Reception - second step in the loop reception of stimuli
Processing - supplied control unit by the receptors
Stimuli. Activated even more
Enumerate (1-4)
Give importance of homeostasis
Balance & Stability
Optimal functioning
Protection against external factors
Prevention of diseases
Give an example of homeostasis in the human body
Maintain body temperature
Controlling blood pH
Regulates blood glucose levels
Give an example of temperature regulation
Sweat
Evaporative cooling
Drop in temperature
Water enters diffusion through the gills
Osmoregulation