Skeletal system Flashcards
What are the two types of bone marrow?
Red and Yellow bone marrow
What are the three types of cartilage?
Cartilage, Articular cartilage, Meniscus
What are the three types of joints?
Sutures, Symphysis, Synovial
How mamy bones does the human skeleton have in total?
206 bones
How many axial bones and appendicular bones does the human body have?
80 axial bones, 126 appendicular bones
Frontal bone
forms the forehead
Parietal bone
Forms most of the top and sides of skull
Occipital bone
forms back of skull
Temperal
forms sides and base of skull
Sphenoid bone
forms floor of skull and lower parts of eye socket
Ethmoid
Forms the nose, orbits of the eye sockets, and floor of skull
External auditory meatus
opening to the external ear in the temporal bone
Zygomatic
Cheek bones
Maxillary
upper jaw bone
Palantine
forms the roof of your mouth
Lacrimal
inner aspects of the eye (tear ducts and glands)
Vomer
forms base of nasal septum
Mandible
lower jaw and only moveable structure of the skull
Hyoid
U shaped/V shaped bone located in the soft tissue of the lower jaw
Thoracic cavity
Rib cage
Rib bones
12 pairs
7 “true” ribs attached to sternum
3 “false” ribs attached to sternum by cartilage
2 floating ribs
Sternum
breast bone, front portion of rib cage
Pectoral Girdle
shoulders
Clavicle
collar bone
Scapula
shoulder blade
Acromion
high point to the shoulder
Humerus
Long upper arm bone
Radius
forearm bone that runs up the side of the thumb
Ulna
Larger bones of the forearm, forms elbow
Olecranon Process
funny bone, large projection from the ulna
Carpals
wrist bones
metacarpal
forms structure of the hand
phalanges
fingers
distal
outer most from the body
medial
middle portion
proximal
closest to the body
spinal column
26 vertebrae
7 cervical
12 thoracic
5 lumbar
Intervertebral Disks
found between vertebrae, shock absorber
Sacrum
traingle shaped structure forming posterier side of pelvic area
Coccyx
tail bone
ilium
hip bone
sacroiliac
provides slight movement between sacrum and ilium
ischium
lowest part of pelvic girdle (pelvic area)
Pubis
anterior portion of pelvic area
pubic symphysis
cartilage joints of pelvic area
acetabulum
hollow socket, allows head of femur into the hip socket
Femur
Upper leg bone, largest in the body
Patella
boney anterior of the kneecap
Popliteal
posterior surface of the knee
Anterior Cruciate Ligament
ACL, ligament area in the knee
Tibia
large weight bearing bone of lower leg
Fibula
thin, non-weight bearing lower leg bone
Tarsel
bones that make up the ankle
Malleolus
round bump on each side of ankle
Talus
articlulates with tibia and fibula
Calcaneus
Clac, the heel
Metatarsals
bones of the feet
lower phalanges
toes