Chapter 1 AP Flashcards
Anatomy
Study of form
Ways of examining structure
Inspection
Palpation
Auscultation
Percussion
Cadaver dissection
Cutting and separating human body tissue
Comparative anatomy
Study of multiple species to learn about form, function, evolution
Medical imaging
Viewing inside of body without surgery
Radiology
Branch of medicine concerned with imaging
Gross anatomy
Study of structure that can be seen with the naked eye
Histology
Examination of tissues with microscope
Histopathology
Microscopic examination of tissues for sign of disease
Cytology
Study of structure and function of cells
Ultrastructure
View detail under electron microscope
Physiology
Study of form
Name some physiological variations
Sex, age, weight, genetics, environment, physical activity
atomical variation
No two humans are exactly alike
Molecules are composed of:
Atoms
Organelles composed of:
Molecules
Cells composed of:
Organelles
Tissues composed of:
Cells
Organs composed of:
Tissue
Organ systems composed of:
Organs
Organism composed of:
Organ systems
Cellular composition:
Living matter always compartmentalized into one or more cells
Metabolism
Internal chemical reactions
Catabolism
Breakdown of complex molecules into simple molecules
Anabolism
Building of complex molecules from simple ones
Responsiveness
Ability to sense and react to stimuli
Homeostasis
The ability to detect change, activate mechanisms that oppose it, and maintain relatively stable internal conditions
Development
Differentiation and growth
Reproduction
Producing copies of themselves
Evolution
Changes in genes
Negative feedback
-The body senses change and reverses it
- allows for dynamic equilibrium within a limited range around a set point
Feedback system
Cycle of events in which information about the status of a condition is continually monitored and fed back to a central control region
Loss of homeostasis causes:
Illness or death
Receptor
Structure that senses change in the body
Integrating control center
Processes the sensory information and makes a decision then directs the response
Effector
Cell or organ that carries out the final corrective action to restore homeostasis
Positive feedback
Leads to greater change in the same direction
Ex) blood clotting, childbirth, protein digestion
Disorder
Any abnormality of function
Disease
Homeostatic imbalance characterized by a specific set of signs and symptoms
Local disease
Affects a limited region of body
Systematic disease
Affects many parts of the entire body
Symptoms
Changes in the body not apparent to an observer
Ex) headache, nausea, itchy
Signs
Changes that the observer can view and measure
Ex) rash, fever, high blood pressure
Gradient
A difference in chemical concentration