Chapter 1: Major Themes of Anatomy and Physiology Flashcards
4 ways of examining structure of the human body
- Inspection
- Palpation
- Auscultation
- Percussion
Cutting and separation of tissues to reveal their relationships
Cadaver Dissection
Study of more than one species in order to examine structural similarities and differences and to analyze evolutionary trends
Comparative anatomy
Opening of the body to look inside
Exploratory Surgery
Viewing inside the body without surgery
Medical Imaging
Branch of medicine concerned with imaging
Radiology
Study of structures that can be seen with naked eye
Gross Anatomy
Study of structure and function of cells
Cytology
Study of tissues and examination of cells with microscope
Histology (Microscopic Anatomy)
Molecular detail seen in electron microscope
Ultrastructure
Microscope examination of tissues for signs of disease
Histopathology
Subdisciplines of physiology
- Neurophysiology
- Endocrinology
- Pathophysiology
Type of physiology that is the study of different species to learn about bodily function and is the basis for the development of new drugs and medical procedures
Comparative physiology
Greek physician who established a code of ethics also known as the “father of medicine”
Hippocrates
Published the first atlas of anatomy in 1543
Andreas Vesalius
First to see and named ‘cells’ Also made many improvements to compound microscope and his microscopes magnified only 30x.
Robert Hooke
Physician to the Roman gladiators who wrote the most influential medical textbook
Galen
Invented a simple (single-lens) microscope with great magnification to look at fabrics (200x) and also published his observations of blood, lake water, sperm, bacteria from tooth scrapings, and many other things.
Antony van Leeuwenhoek
First tenet of cell theory which was considered as the most important breakthrough in biomedical history,
Matthias Schleiden and Theodor Schwann
Hierarchy of complexity
- Organism
- Organ System
- Organ
- Tissues
- Cells
- Organelles
- Molecules
- Atoms
Characteristics of life
- Organization
- Cellular composition
- Metabolism
- Responsiveness and movement
- Homeostasis
- Reproduction
- Evolution
The body’s ability to detect change, activate mechanisms that oppose it, and thereby maintain relatively stable internal conditions
Homeostasis
When the body senses a change and activates mechanisms to reverse it.
Negative feedback loop
Self amplifying cycle that leads to a greater change in the same direction; feedback loop is repeated.
Positive feedback loop
3 Components of a feedback loop
- Receptor
- Integrating Control Center
- Effector
Penetrate tissues to darken photographic film beneath the body, dense tissue appears white, over half of all medical imaging, and until 1960s, it was the only method widely available.
X-rays
Injected or swallowed, fill hollow structures such as blood vessels or intestinal tract.
Radiopaque substances
Low intensity X rays and computer analysis, slice type image, and increased sharpness of image. Formerly called CAT scan.
Computed Tomography (CT scan)
Assesses metabolic state of tissue
Positron Emission Tomography (PET scan)
Slice type image Superior quality to CT scan Best for soft tissue
Magnetic Resonance Imaging (MRI)
Uses high-frequency sound waves that echo back from internal organs, avoids harmful x rays, is second oldest and second most widely used but the image is not very sharp
Sonography
Anatomical Position
Person stands erect Feet flat on floor Arms at sides Palms, face, and eyes facing forward
Supination
Palms face forward or upward Radius and Ulna are parallel
Pronation
Palms face rearward or downward Radius and Ulna are crossed
Implies actual cut or slice to reveal internal anatomy
Sectional
Implies an imaginary flat surface passing through the body
Plane
Plane that passes vertically through the body/organ and divides it into left and right portions
Sagittal/Median
Plane that divides body or organ into two equal halves
Midsaggital
Plane that extends vertically but is perpendicular to the sagittal plane and divides the body into anterior and posterior portions
Frontal/Coronal
Plane that passes across the body or an organ perpendicular to its long axis; it divides the body or organ into superior and inferior portions
Transverse/Horizontal
Anterior/Ventral
Toward the front or belly
Posterior/Dorsal
Towards the back or spine
Superior
Above
Inferior
Below
Cranial/Cephalic
Toward the head or superior head
Lateral
Away from the median plane
Proximal
Closer to the point of attachment
Distal
Farther away from the point of attachment or origin
Medial
Toward the middle (median plane)
Caudal
Toward the tail or inferior end
Deep
Farther from the body surface
Superficial
Closer to the body surface
Axial
Relating to head, neck, and trunk; the axis of the body
Appendicular
Relating to the limbs and their attachments to the axis
Abdominal
Pertaining to the anterior body trunk region inferior to the ribs
Acromial
Pertaining to the point of the shoulder