Skeletal System

epiphysis

ends of bone, forms a joint with another bone

diaphysis

shaft of the long bone (whole middle)

articular cartilage

hyaline cartilage covering ends of the bone

periosteum

tough membrane covering over entire bone, source of bone-developing cells during growth or after fracture

medullary cavity

in middle of diaphysis, contains yellow bone marrow

endosteum

lining of the medullary cavity

red marrow

produces blood cells

yellow marrow

fat storage

axial skeleton

head,neck,trunk,vertebrae, ribs, and sternum

appendicular skeleton

limbs, bones connecting limbs

pectoral girdle

scapula and clavicle, upper limbs(arms)

hemopoiesis

blood cell formation, occurs in red bone marrow

compact bone

wall of diaphysis,solid,strong

spongy bone

(cancellous) epiphysis, red marrow

osseous

bone tissue

lacunae

tiny champers that osteocytes are enclosed in

Haversian Canal

run parallel to the bone

Volkmanns Canal

run perpendicular to the bone

lamellae

organized arrangement of collagen fibers into layers

what is the star pointing to

osteon

what is the star pointing to

lamellae

what is the star pointing to

spongy bone

what is the star pointing to

bone cells

whats the star pointing to

periosteum

intramembranous bones

broad,flat bones of the skull

endochondral

all other bones

ossification

process of cartilage gradually changing into bone tissue

osteoblasts

produce bone cells called osteocytes

osteoclasts

dissolve bone tissue, a process called resorption

synarthrotic joints

immovable joints, junctions called stutures

amphiarthrotic joint

slightly moveable joints, vertebrae

diarthrotic joints

freely movable joints, have a labricating fluid called synovial fluid

ball and socket

shoulder/hip

hinge

elbow/knee

pivot

lower arm

saddle

thumb

what skull bone is the star pointing to

frontal

what skull bone is the star pointing to

parietal

what skull bone is the star pointing to

occipital

what skull bone is the star pointing to

temporal

what skull bone is the star pointing to

zygomatic

what skull bone is the star pointing to

mandible

what skull bone is the star pointing to

maxilla

what skull bone is the star pointing to

nasal

what skull bone is the star pointing to

sphenoid

what suture is the star pointing to

coronal suture

what suture is the star pointing to

squamous suture

what suture is the star pointing to

lambdoidal

what suture is the star pointing to

sagittal (between parietal bones)

frontanels

soft spots of an infants skull

foramen magnum

large opening through bottom of skull, where the spinal cord enters the skull

cervical vertabrae

first 7 (C1-C7)

thoracic vertabrae

T1-T12

lumbar vertabrae

L1-L5

order of vertebrae

1. cervical

2. thoracic

3. lumbar

how many ribs are there

12 pairs

true ribs

first seven pairs, attached direct to sternum

false ribs

last 5 pairs after true, attached to 7th true rib

floating ribs

last two pairs

pectoral girdle

shoulder, clavicles, scapulas

what kind of broken bone is this

closed

what kind of broken bone is this

open/compound

what kind of broken bone is this

multiple

what kind of broken bone is this

comminuted

what kind of broken bone is this

greenstick

what kind of broken bone is this

spiral

weakest skull bone

temporal

which skill bone looks like a butterfly wing

sphenoid

what does the hyoid do

anchors tongue

how do you number phalanges

1-5 starting at thumb or big toe

what are the three sections of a phalange

1. proximal

2. middle

3. distal

where do you find red marrow

spongy bone

thumb and big toe don’t have a…

middle section

what bone looks like a hammer?

femur

tibia has a

flat top and is bigger

fibula

skinny leg bone

how many areas does a pelvis have

3

3 sections of the pelvis

1. illium (top part, flat)

2. pubic region

3. ischium (bottom, under holes)

foot

tarsals, metarsals

scientific term for heel

calcaneous

coccyx

tailbone

spongy bone is also called

calcaneous