Exam 1 Material Flashcards
Anatomy
refers to the science which deals with the form and structure of all organisms
Physiology
study of the intergrated functions of the body, and the functions of all its parts
Pathology
the study of the disease of the body
Gross Anatomy
study of the form and relations of the structures of the body that can be seen with the unaided eye.
Comparative Anatomy
study of the structures of various species of animals
Microscopic Anatomy
study of those cells and tissues that can only be seen with a microscope
Cranial
toward the head
Caudal
toward the tail
Rostral
used with caudal within the head to mean towards the nose
Medial
close to or toward the median plane
Lateral
away from the median plane
Dorsal
toward or beyond the backbone or vertebral column
Median Plane
passes through the body craniocaudally which divides the body into equal left and right halves
Sagittal Plane
any plane parallel to the median plane
Transverse Plane
any right angle to the median plane; divides body into cranial and caudal segments
Horizontal Plane
at right angles to both the median plane and transverse planes
Transverse Example
cinch on horse
Horizontal Plane Example
cow in lake up to her chest
4 Cavities
Dorsal, Ventral, Parietal, Visceral
Dorsal Cavity
cranial and spinal area, cushions and protects things
Ventral Cavity
thoracic and abdominopelvic area, stomach, allows for protection, organ movement, prevents friction
Parietal
walls of cavity
Visceral
covering of an organ
Cell
smallest unit of life
4 types of Tissues
epithelial, connective, muscle, nervous
Alcmaeon
first man to make a significant contribution in biology
Herophilus and Erasistratus
first scientific studies designed to discover the workings. of human anatomy; cutting up convicted criminals
Galen
arteries contain blood, not air
Vesalius
disproves some of Galen’s work
Harvey
wrote a book; blood is pumped in a circuit
Malpihi
observes capillaries through a microscope
Leeuwenhoek
observes semen from a dog under a microscope
Dujardin
identifies protoplasm
Brown
discovers the nucleus in plant cells
Schleiden and Swann
first coherent account of cell formation as the building process of all life
Eukaryotric
nucleus
Prokaryotic
no nucleus
Functions of Cell Membrane
- provide physical isolation
- regulate exchange
- provide sensitivity
- provides structural support
Membrane transport
selectively premeable membrane
Things effecting membrane transport
- size
2.solubility
3.ionic change - are carrier proteins available
Substances that pass through quickly:
water, urea, oxygen, barbituents, anesthetics
Cytoplasm
mostly water with chemical compounds in solution or colloidd
___ compounds go into solutions
polar
___ compounds go into colloidal suspension
nonpolar
red blood cells in animals do not have a ___
nucleus
Nucleolus
site of ribosomal formation
Nucleus
control center of the cell, chromatin
Lyosomes
packages digestive enzymes, maintained and repairs organelles, suicide if needed
ER
skeleton on the cell, connects with outer nuclear and cell membrane
ER function
- synthesis
- storage
- detox
- transport within ER
Cisternae
sac like or channel like cavities in the ER
Rough ER
for protein synthesis, attached ribosome
Smooth ER
fat transport, sex hormone synthesis
Golgi Functions
- collection of flat saclike cisternae
- concentration and collection of cellular compounds
- storage warehouse of the cell
- carbohydrate synthesis site
Ribosomes
site of protein synthesis, no membrane covering
__ contains the code for the protein that the ribosome synthesizes
DNA
Transcription
messenger RNA copies DNA code and leaves nucleus
Translation
transfer RNA picks up amino acid
Mitochondria
powerhouse of the cell, respiratory center
Centrosome
two centrioles at right angles to each other (9 sets of triplet fibers)
Centrioles
oldest known organelle, form spindle fibers during cell division, guide duplicated chromosomes to daughter cells
Only cell in human with flagella:
sperm cell
Bloodstream is __% water
95%
Body weight is __% water
75%
Most abundant substance in cells
water
Inorganic compounds in the human
CO2,O2, water, salt
Level of oxygen in atmosphere:
21%
Ammonia
By-product of amino acid breakdown,contains nitrogen, converted to urea in liver
Five Carbon Carbs
deoxyribose, ribose
Six Carbon Carbs
glucose and fructose
Carbs function:
energy storage and cell structure
3 elements needed for muscle contraction and nervous transmission:
sodium, potassium, and chloride
__% of triglycerides in body are triglycerides
95%
Saturated Fat
fatty acids with a single covalent bond
Unsaturated Fat
fatty acids have one or more double covalent bonds
Lipid functions:
energy, insulation, protection
__is the most abundant organic compound in our body
protien
__ types of proteins in the body
140,000
Deoxyribonucleic acid
genetic material of the cell
Ribonucleic acid
protein synthesis; mRNA and tRNA
Purines
adenine, guanine
Pyramidines
uracil, thymine, cytin
Energy is store in the ___ of the ATP
2nd and 3rd phosphate
Diffusion
movement of molecules from area of high concentration to low concentration
“Going down the concentration gradient”
diffusion
Brownian movement
random collision of diffusing molecules
Osmosis
movement of water through semipermeable membrane from high concentration to low concentrations, special form of diffusion
Active Transport
used by cells to obtain sugars, amino acids, larger proteins, and fats, needs ATP
Hypertrophy
increase in cell size beyond normal
Hyperplasia
an increase in the size of a structure because of an increase
Atrophy
decrease in cell size
Aplasia
failure of tissue to develop
Hypoplasia
incomplete or defective development of a tissue
Phagocytosis
engulfing of material by surrounding it; ex: white blood cells
Pinocytosis
process of bringing in extracellular material that is unable and too large to be absorbed by active transport
Metabolism
cellular utilization of nutrient essentially entailing the oxidation of carbon compounds
3 byproducts of metabolism
CO2, metabolic water, energy
Anabolic
building of substances from different or less complex precursors; process usually uses energy
Catabolic
the breakdown of substances to their end products with production of energy from utilization, storage, heat
Excretion
release of waste products (urea, CO2)
Secretion
release of useful products (bile salts, hormones)
Irritability
ability to respond to a stimuli (nerve and muscle cells)
Conductivity
ability to transmit and impulse (nerve and muscle cells)
Contractility
ability to shorter in one direction (muscle cells)
__ types of cells
200
Histology
study of cells
Epithelial functions:
- protects underlying tissue
- absorbs nutrients
- Secretes hormones, mucus, enzymes
- excretes waste
Squamous
flat (protection)
Cuboidal
cube shaped (protection and secretion)
Columnar
tall and rectangular (secretion and absorption)
Stratified
several layers
pseudo-stratified
appears to be several layers but its not
transitional
several layers of easily stretched cells
areas with simple squamous:
heart, kidney,tubules
areas with stratified squamous
mouth, rectum
mucous membrane
mucus production
exocrine glands
simple and compound
endocrine
hormone secretion
endothelium
lines vessels (endocardium)
mesothelium
lines great cavities
Connective tissue matrix components:
- collagen
- elastin
Areolar
injury repair, phagocytosis, inflammatory response
adipose
fat storage
reticular
framework