Axial Skeleton (infant skull), Skull Skeletal Structure, Bone structure long bone, Compact Bone, Types of Bones, Epidermal Strata (5 Layers), Integumentary System
Stratum Granulosum
-Also contains Langerhans cells -3-5 rows of partially flattened cells containing small protein granules- keratohyalin (helps for keratin) -In superficial layers nucleus and other organelles degenerate and cells die -aids in healing
Stratum Basale
-Deepest portion of epidermis and single layer of columnar cells -High miotic activity -Cells become keratinized -vascular
Stratum Lucidum
-Found only where 'thick skin': plans and soles -3-4 rows of flattened, dead cells that are mostly transparent (ghosts) and completely keratinized -Thin, clear zone
Stratum Corneum
-Most superficial layer -20-50 rows of flattened, dead cells that are continuously being sloughed off -Consists of cornfield cells: dead cells containing an envelope filled with soft keratin -Tough, waterproof protection
Stratum Spinosum
-Multiple layer of cuboidal cells with limited cell division -Desmosomes: molecular bridges that connect them to adjacent cells giving them a spiny appearance -Contains Langerhans cells
A Fontanelles
Flat areas of fibrous connective tissue between bones of the skull that have not completed the ossification process.
Sharpey's Fibers
Holds periosteum together
Lacunae
Hole "Little Lake"
22
How many bones are in the skull
14
How many bones make up the facial structure
8
How many bones protect the brain in the cranium
Proximal Epiphysis
Identify 1
Spongy bone w red marrow
Identify 10
Epiphyseal line
Identify 11
Diaphysis
Identify 2
Distal Epiphysis
Identify 3
Articular Cartilage
Identify 4
Periosteum
Identify 5
Medullary Cavity
Identify 6
Endosteum
Identify 7
Nutrient artery
Identify 8
Compact bone
Identify 9
Papillary layer.
Identify the layer.
Reticular layer
Identify the layer.
Dermal papilla
Identify the projections.
Dermis
Identify the region.
Epidermis
Identify the region.
Hair root
Identify the region.
Hair shaft
Identify the region.
Hypodermis
Identify the region.
Stratum basale
Identify the stratum.
Stratum granulosum
Identify the stratum.
Stratum spinosum
Identify the stratum.
stratum corneum
Identify the stratum.
stratum lucidum
Identify the stratum.
Arrector pili muscle
Identify the structure.
Hair bulb
Identify the structure.
Hair follicle
Identify the structure.
Meissner's corpuscle
Identify the structure.
Pacinian corpuscle
Identify the structure.
apocrine sweat gland
Identify the structure.
eccrine sweat gland
Identify the structure.
sebaceous sweat gland
Identify the structure.
Canaliculi
Joins lacunae, "Spider Legs"
Posterior Fontanelle
Label the structure indicated #10
Anterior Fontanelle
Label the structure indicated #2
Sphenoid Fontanelle
Label the structure indicated #2
Mastoid Fontanelle
Label the structure indicated #3
Perforating Canal
Lateral canal
Osteocytes
Lives in Lacuna
Central Canal
Middle of the osteon
Osteon
Set of rings
Concentric lamellae
The Rings
hammer, anvil, and stirrup
What are the bones of the inner ear
Auditory Meatus
What is this bone structure?
Frontal
What is this bone structure?
Mandible
What is this bone structure?
Mandibular Foramen
What is this bone structure?
Mastoid Process
What is this bone structure?
Maxillae
What is this bone structure?
Mental Foreman
What is this bone structure?
Nasal
What is this bone structure?
Occipital
What is this bone structure?
Parietal
What is this bone structure?
Sphenoid
What is this bone structure?
Styloid Process
What is this bone structure?
Supraorbital
What is this bone structure?
Temporal
What is this bone structure?
Zygomatic
What is this bone structure?
Zygomatic Process
What is this bone structure?
lambdoidal Suture
What is this bone structure?
long bone
bone that is longer than wide
diaphysis
bone's shaft or body
articular cartilage
cartilage that forms over the epiphysis where the bone forms a joint
irregular bone
complex shapes that are not long, short, or flat bones
epiphyseal line
distinct line formed when the cartilage turns to bone
sutural bone
form joints of cranial bones
epiphyseal plate
layer of cartilage located in the metaphysis (growth plate)
short bone
length and width about equal
medullary cavity
marrow cavity space within the diaphysis
Reticular Layer
responsible for for elasticity and home to accessory organs like glands, hair, nerves, sensors, and emotional response
Papillary Layer
responsible for tactile friction, touch receptors, and nerve endings
endosteum
single layer of bone forming cells
sesamoid bone
small bones in tendons of areas of high pressure
epiphysis
the distal and proximal ends of the bone
flat bone
thin and flat, serve to protect and attach muscles
periosteum
tough sheath that covers the bone
metaphysis
where the epiphysis meets the diaphysis