Anatomy & Pathology Basics - Week 2 Flashcards
Anatomy definition
Study of how the body is shaped and structured
-structures, level of organization, relationship among body parts
Physiology definition
Study of body functions
Structural organization of the body
Cell
Basic unit of life
Mitosis
Process of cell reproduction
Mitosis 4 phases
Prophase
Metaphase
Anaphase
Telophase
Tissue
Group of similar cells from same source that together carry out a specific function
Tissues 4 types
Epithelial (4 types based on shape)
Connective
Muscle (3 types)
Nervous
Organs
Structure composed of 2 or more types of tissue & may have 1 or more functions and b part of 1 or more systems
Body systems
Composed of several organs & their related structures that work together to perform specific functions
Organism
Made up of many body systems that work together to maintain homeostasis
Anatomical position
Standard frame of reference
Body standing w face forward, arms at sides, palms forward and toes forward
Planes
Coronal or frontal
Anterior/ventral & posterior/dorsal
(Front & back of body)
Midsagittal or median
(Separates body into equal right & left halves)
Medial & lateral
(Closer to midline & farther away from midline)
Midline
(Starts at head & goes down body btwn legs to ground)
Transverse or horizontal
(Horizontal upper and lower sections)
Superior/cephalad & inferior/caudad
(Upward, toward, downward, toward tail)
Directional terms
Unilateral & bilateral
(One side, two side)
Dextrad & sinistrad
(Right, left side)
Afferent & efferent
Carrying toward, carrying away)
Ipsilateral & contralateral
(Same side, opposite side)
Superficial & deep
(Toward surface, away surface of body)
Proximal & distal
(Near origin, far from origin)
Positional terms
Supine
Prone
Lateral
Body cavities
Dorsal (posterior)
Nervous organs, cranial cavity, spinal cavity
Body cavities
Ventral (anterior)
Thoracic & abdominopelvic cavities
-separated by diaphragm
Abdominopelvic Quadrants
Imaginary vertical & horizontal lines intersecting at naval
Right upper quadrant (RUQ)
Left upper quadrant (LUQ)
Right lower quadrant (RLQ)
Left lower quadrant (LLQ)
Nine abdominopelvic regions
Right hypochondriac region
(Liver, gallbladder, right kidney)
Epigastric region
(Kidney, pancreas, liver, stomach)
Left hypochondriac region
(Stomach, liver, left kidney, spleen)
Right lumbar region
(Sm int., lg int (ascending) liver, right kidney)
Umbilical region
(Sm int., lg int (transverse) pancreas, stomach)
Left lumbar region
(Sm int, lg int (descending) left kidney)
Right iliac region
(Appendix, sm and lg int (cecum and ascending))
Hypogastric region
(Sm int, lg int (sigmoid), bladder
Left iliac region
(Sm int, lg int (descending & sigmoid))
pH
Acid-base balance of a solution on 1-14 scale
Neutral pH balance
pH is 7
Base or alkaline pH #
pH over 7
Fewer hydrogen ions
Acidic pH #
pH under 7
More hydrogen ions
Acid base balance
Homeostasis
Homeostasis btwn 7.35 & 7.45
Maintained by ; urinary, respiratory systems and chemical buffers
Protective mechanism
1st-line defense
Skin
Enzymes in tears & saliva
Mucus
Cilia
Stomach acid
Good bacteria
Urine