Chapter 1
• Anatomy studies the form and structure of the body
o We will look at the body at a systemic point of view. Will start with the
integumentary system, then skeletal, etc.
• Physiology examines how the bod
...
Chapter 1
• Anatomy studies the form and structure of the body
o We will look at the body at a systemic point of view. Will start with the
integumentary system, then skeletal, etc.
• Physiology examines how the body functions
o Form and function are interrelated and inseparable
o The body depends on cells and chemical reactions
o Physiology uses basic physical principles (e.g. electrical currents, pressure, and movement).
• Scientific method- refers to a systematic and rigorous process by which scientists:
o Examine natural events through observation
o Develop a hypothesis for explaining a phenomenon
o Experiment and test hypothesis by collecting data
o Determine if the data support the hypothesis, or if the hypothesis should be rejected or modified
• Microscopic anatomy
o Examines structures that cannot be observed by unaided eye
o Specimens examined under microscope
▪ Divisions:
• Cytology- is the study of body cells and their internal structure
• Histology- is the study of tissues
• Gross anatomy, or macroscopic anatomy
o Investigates structures visible to the unaided eye
o Specimens dissected for examination
o Divisions:
▪ Systemic anatomy- studies the anatomy of each body system
▪ Regional anatomy- examines the structures in a body region
▪ Surface anatomy- focuses on superficial anatomic markings and internal body structures
▪ Comparative anatomy-examines anatomical similarities and differences in different species
▪ Embryology- studies developmental changes from conception to birth
• Divisions focusing on diagnosis or research:
o Pathologic anatomy examines macroscopic and microscopic anatomic
changes resulting from disease
o Radiographic anatomy investigates internal structures visualized by scanning procedures
• Physiologists examine the function of body structures, focusing on the molecular and cellular level
o Physiology sub disciplines:
▪ Cardiovascular physiology examines functioning of the heart, blood vessels, and blood
▪ Neurophysiology studies functioning of nerves and nervous system organs
▪ Respiratory physiology explores functioning
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