X A&P - Chp 7 - Bones Flashcards
Foramen Magnum
Where spinal cord exits skull
Sutures in skull
Harden in adults
Parts of Skull
Frontal
Occipital
Parietal
Temporal
Fontanelle
Soft part of cartilage that hasn’t hardened yet
Trabeculae
Inner structural tissue inside bone. lightweight, strong
Axial Skeleton
TRUNK
Head, Spine, Thorax
Appendicular Skeleton
Appendeges, legs, arms
Vertebraes
Cervical - 7
Thoracic - 12
Lumbar - 5
Sacrem
Arm bones
Radius (thumb side)
Ulna (pinky side)
Humerous (funny bone, upper arm bone)
Heel Bone
Calcaneus
Leg bone (upper)
Femur
Leg bone (lower 2)
Tibia (main)
Fibula
Arm (upper)
Humerous
Arm (lower 2)
Radius (main)
Ulna
Costal Cartilage
Soft cartilage of the ribs
Acromium Process
Landmark Bone, front side of bone above scalpula. 2 finger breadths below for deltoid muscle injection location
Calcaneous
Heel bone
Illiac Crest
Crest of Illim bone where bone marrow is taken from
Sinus Cavity
in bone, lined with mucous membrane
Kyphosis
hump back
Lordosis
curve in lower back. ie. pregnant women
Scoliosis
curved spine
End of bone
Epiphysis
shaft of bone
diaphysis
Spongy Bone
Cancellous
Compact Bone
Cortical
Antlers made of
hair
Tusks made of
teeth
Periosteum
connective tissue membrane covering a bone
Function of Bone
- Protecting underlying structures
- movement and locomotion
- storage of minerals (calcium, phosphate)
- Hematopoesis (formation of blood cells in Red bone marrow)
Parathyroid Homone PTH
Bad, stimulates Osteoclasts, breaks down bone
Osteosarcoma
bone cancer
Bone marrow creates new blood ?
daily
RBC live for ? days
120
Aplastic Anemia
bone marrow dies
Patella
knee cap
Greater Trochanter
opposite femoral head. smaller of two bulges. hip bond that we can palpate
Osteons
cylinders that veins travel through within bone
structural unit of compact (cortical) bone
Epiphyseal Plate
plate for growth in bones. becomes ephyseal line in adults
Long bones filled with what marrow?
Yellow (mostly adipose)
Meniscus
rubbery c shaped disc cushioning knee
Fontanelle
soft cartilage in baby’s skull before it hardens
Foramen Magnum
Where spinal cord exits skull
Atlas
topmost cervical vertebra to which skull is attached
Axis
second vertebra from top
Epicondyle
funny bone. bone protrusion felt in your elbow
Condyles
rounded end of bones that usually work with other bone ends
Mandible
Lower jaw bone
Articular Cartilage
Hyaline
catilage on end of bone joints
what is inside Bursae
cushions at various joints
containing synovial fluid
What electrolyte is in bone
Calcium
Ischial tuberosity
Sit bone
Carpels
wrist bones
Maleolus
ankle bones
Head
Rounded know of femor
Myelo Suppression
Bone marros suppression
Process
Protrusion
Hematophoesis
formation of blood cells
Condyle
Knob
weight bearing excercise
strengthens bones (up to 30yrs)
Crest
Crest to top edge
Flat projection edge?
Ossification
cartilage to bone
Spine
Raised edge
Osteoclasts
resorb bone tissue. break down
Foramen
Holes for vessels
Osteocytes
maintain and repair existing bone matrix
Sinus
Cavity within bone line by mucous membrane
Osteoblasts
Manufacture the matrix. create bone
Fossa
Deep groove or depression
Fossa
deep groves or depression
Meatus
Holes in bone for blood vessels
Meatus
holes in bone for blood vessels
Caracoid Process
Can’t palpate
Bone under acromium process
Xypoid Process
bone/cartilage right under sternum bone
Shin bone
Tibia
Glenoid Cavity
Humeral head sits in this
Malleolus
Ankle
Medial malleolus
Inside ankle bone
Pubic arch is wider in
women
Lateral malleolus
Outside ankle bone
Type of fractures
Open - bone protrudes through skin
Greenstick - bone soft and splinters or frays (in children)
Comminuted - broken in many piecs
dont need to know Closed Impacted Spiral Transverse Oblique
Open fracture
Bone through skin
Types of Joints
Fibrous:
Synarthrosis (immovable) i.e. sutures in skull
Cartilaginous:
Amphiarthrosis (slightly movable) i.e. pubic sympehsis (stretches during childbirth)
Synovial:
Diarthrosis (freely movable) i.e. arms, legs, can move in 2 directions. Ball & Socket
Greenstick
Splintered. Mostly in children
Hyaline (articular cartilage)
cartilage at edges of bone heads
Comminuted fracture
Broken in many pieces
Joints synonym
Articulation
Where one bone meets another
Movement of forearm and ankle
Supination (palm up) Pronation (palm down) Inversion (ankle) Eversion (ankle) Dorsiflexion (foot) toe to nose Plantar flexion (foot)
Synarthrosis
Immovable fibrous joints
I.e. Sutures in skull
Cartilaginous
Ie Pubic synthesis stretches during childbirth
Pelvic bones
- Illium (upper flared portion)
- Illiac Crest (curved rim along ilium border where bone marrow extracted)
- Ischium (lowest, strongest part)
- Pubis
Movement at Synovial Joints (fig 7.26)
Flexion Extension Abduction (wide outside) Adduction (towards inside) Circumduction Roation
Diarthrosis
Joints Freely moveable in all directions
Vitamin D promotes
Calcium absorption
Parathyroid hormones casuse bones to
resporb and release calcium into blood