Cells
What cells connect the body parts, form lining or transport?
Erythrocytes, Fibroblasts, Epithelial Cells
What does the integumentary system contain?
Skin, Hair, Nails, Sweat glands, Oil glands
What are the main types of bone cells?
Osteoblasts, Osteocytes, Osteoclasts
What skeleton serves key function?
Support, Protection, Movement, Mineral Storage, Blood cell production
What is simple diffusion
Nonpolar lipid-soluble (hydrophobic) substances diffuse directly through phospholipid bilayer
What is the main purpose of the cell membrane?
Controls what enters and leaves the cell.
what do Melanocytes do?
Produce pigment melanin.
How do bones grow and develop?
Through a process called ossification
What are the different regions of the vertebral column?
Cervical, Thoratic, Lumbar
What is facilitated diffusion
Certain hydrophobic molecules (e.g., glucose, amino acids, and ions) are transported passively down their concentration gradient by:
● Carrier-mediatedfacilitateddiffusion
– Substancesbindtoproteincarriers
Is the head of a lipid polar or non polar?
Polar
What is the deepest layer of all the epidermal layer?
Stratum Basal layer
What is the difference between the axial skeleton and the appendicular skeleton?
Axial includes head, neck, trunk, skull, spine , ribcage
appendicular limbs and girdles and limbs
What is the rib cages function
Protect vital organs
What is Carrier-mediated facilitated diffusion
Each carrier transports specific polar molecules, such as sugars and amino acids,
that are too large for membrane channels
Binding of molecule causes carrier to envelope it and change shape that results in molecule being moved across membrane in process
Binding is limited by number of carriers present
What do proteins do in the cell membrane?
Transport and Communication
What are the three layers of the skin
Epidermis, Dermis, Hypodermis
What is the role of calcium in bone health
Bone strength
What is the role of joints in the skeleton
What is Channel-mediated facilitated diffusion
Channels with aqueous-filled cores are formed by transmembrane proteins Channels transport molecules such as ions or water (osmosis) down their
concentration gradient
● Specificitybasedonporesizeand/orcharge ● Waterchannelsarecalledaquaporins
What is the strongest cell junction?
Desmesomes
What is the purpose of sweat glands
Regulate body temperature
How do fractures heal?
Inflammation, Soft callus formation, hard callus formation, remodeling
How does bone remodeling work
Process where old bone replaced by new bone
What is a hypertonic solution
Cells lose water by omniosis and shrink