skeletal system Flashcards
skeletal system
forms foundation of body
anchor points for muscles and ligaments providing support
how many bones
206
joint and the 2 kinds
place where bones meet
moveable and immovable
primary functions of the skeletal system
- shape and support body
protect various internal structures and organs
serve as attachments for muscles acting as levers- body movement
help produce WBC and RBC
store most of body calcium, phosphorus, magnesium, and sodium
how many bones in the head 1
22 bones divided into 2 groups- cranium and facial bones
cranium
oval bony case protecting the brain - formed by 8 bones
how many bones of the face
14 including jaw
bones of the cranium 6
- occipital
parietal bones
frontal bones
temporal bones
ethmoid bone
sphenoid bone
occipital bone
forms back of the skull above nape
parietal bones
2 bones
form the sides and crown (top) of the cranium
frontal bone
forms the forehead
temporal bone
form the side of the head in ear region
ethmoid bone
light spongy bone between eye sockets
forms part of the nasal cavity
sphenoid bone
forms side of the eye socket
bones of the face 5
- nasal bones
- lacrimal bones
- zygomatic bones
- maxillae bones
- mandible
nasal bones
forms the bridge of the nose
Lacrimal bones 3
2
smallest most fragile bones of face
front inside part of the eye socket
zygomatic bones
aka molar bones/cheekbones
form the prominence of the cheeks
maxillae bones
form upper jaw
mandible bone
forms Lower jaw bone
largest and strongest bone of the face
bones of the neck 2
hyoid bone
cervical vertebrae
hyoid bone 2
U-shaped bone at base of tongue
supports tongue and its muscles
cervical vertebrae
7 bones at tips of vertebral column located in neck region
bones of the chest importance
when performing full body treatments and body landmarks
bones of chest 5
thorax
ribs
scapula
sternum
clavicle
thorax 2
chest/pulmonary trunk consisting of the sternum, ribs, thoracic vertebrae
elastic bony case serves as protective framework for heart, lungs and other organs
ribs
twelve pairs of bones forming wall of thorax
scapula
aka shoulder blade
large flat triangular bone of shoulder
2
sternum 2
aka breastbone
flat bone that forms ventral /front support of ribs
clavicle
aka collar bone
bone that joins sternum and scapula
bones of arms and hands 6
humerus
ulna
radius
carpus
metacarpus
phalanges
humerus
upper most largest bone of arm
elbow to shoulder
ulna
inner and larger bone of forearm
attached to wrist and located on side of little finger
radius
smaller bone of the forearm on thumb side
carpus
aka wrist
flexible join composed of 8 small irregular bones (carpal) held together by ligaments
metacarpus
aka palm
consists of five long slender bone called metacarpals
phalanges
aka digits
bones in the fingers
3 in each finger and 2 in thumb
14 total
