Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
38 Cards in this Set
- Front
- Back
Homeostasis
|
maintains constant conditions
-Temp, pH, salt concentration, nutrient concentration, 02/CO2 levels |
|
Positive Feedback
|
Modulate stimulus to enhance the effect.
ie-progression of labor |
|
extracellular fluid
|
interstitial (in between cells)
plasma |
|
Integrator
|
interprets stimulus (set points)
Central Nervous System |
|
Hydrophylic vs. Hydropholic
|
Hydrophylic-anything w/ water
Hydropholic-w/out water |
|
Integrator
|
interprets stimulus (set points)
Central Nervous System |
|
Negative feedback
|
Modulate stimulus to inhibit the effect
Most are this type. Response to heat or cold. |
|
ions
|
gain or lose electrons
|
|
Polar vs. nonpolar compounds
|
polar-anything w/ a charge
nonpolar-w/out a charge |
|
sensory receptor
|
detects a stimulus (cell detects something is wrong)
|
|
Effector
|
Appropriate respose to a stimulus. Signals sent oout to fix a problem.
ie-sweat |
|
Intracellular Fluid
|
cytoplasm.
|
|
covalent bonds
|
unequal covalent bonding-partial bonding
-ie. water |
|
Dissolving
|
Stronger salt is taken apart by weaker H2O molecules b/c there are more of the weaker H2O molecules.
|
|
pH (adids and bases)
|
1. H2O split 2. Covalent bond disrupted
3. Left w/ OH- and H+ 4. Process continues until something is added to disrupt H2O 5. Add extra H+ (becomes acidic)7 or + Add OH- (becomes base) |
|
Carbos
|
Broken down, used for energy
|
|
Polysaccharides
|
Chains of Carbos
|
|
Lipids
|
Fatty acids
|
|
Triglycerides
|
3 fatty acids
|
|
Phosphate
|
interacts w/ water
|
|
Amino acids
|
hooked together by Peptide bonds
|
|
Hemoglobin
|
Connected to sickle cell anemia (broken proteins) one failed protein
|
|
Nucleic acids
|
Twisted chain containing instructions on how to build proteins and how to perform certain life functions
|
|
ATP
|
Molecule cells used to store energy (rechargable battery)
|
|
Bone tissue functions
|
Support, protection, assist movement, mineral bank, blood cell protection (hemopoesis-red marrow), energy storage (adipose tissue-yellow marrow)
|
|
Tissue components
|
25%water
25%protein fibers 50%mineral salts |
|
Epipheral line
|
Reveals where bone growth has stopped
|
|
Bone remodeling
|
Generated bone tissue gets digested out and replenished
|
|
osteoblasts
|
young bone-forming cells that cause the hard extracellular matrix of bone to develop
|
|
osteocytes
|
mature bone cells that maintain the structure of bone
|
|
Osteoclasts
|
Bone-dissolving
|
|
Ostoeprogenitor
|
undifferentiated stem cell
|
|
compact bone
|
-concentric rings of matrix
-central canals and perforating canals-contain arteries -Lacunae contain osteocytes;(connected to eachother) |
|
Spongy bone
|
irregular latticework
spaces filled w/ red bone marrow site of hemopoesis |
|
Bone formation
|
formation from hyaline cartilage
Chondrocyte-makes cartilage Epiphyseal plate-lengthwise growth of bones (growth plate) Adult bone, epiphyseal plate gets calcified |
|
Growth in diameter
|
Osteoclasts-active on endosteal side
Osteoblasts-active on periosteal side |
|
Axial skeleton
|
skull, hyoid, auditory ossicles, vertebral column, thorax (sternum and ribs)
|
|
Appendicular skeleton
|
pectoral girdles (clavicle and scapula)
Upper extremities (arm bones) Pelvic girdle Lower extremities (leg bones) |