Quiz 2 Flashcards
(62 cards)
5 components of the axial skeleton
- cervical
- thoracic
- lumbar
- sacral
- coccygeal
external bones of the cranium
- occipital bone
- interparietal
- parietal
- temporal
- frontal
external bones of the face
- incisive
- nasal
- maxillary
- mandible
- lacrimal (ball)
- zygomatic
pelvic bones
- wing of ilium
- ilium
- pubis
- acetabulum
- obturator foramen
- ischium
- public symphysis
forelimb / thoracic limb (proximal to distal)
- scapula
- humorous
- radius
- ulna
- carpal bones (carpus)
- metacarpal bones
- phalanges
hind limb / pelvic limb (proximal to distal)
- pelvis
- ilium
- ischium
- pubis
- femur
- tibia
- fibula
- tarsal bones (tarsus)
- metatarsal bones
- phalanges
synovial joint characteristics
-produces synovial fluid that lubricates joint surfaces
canine vertebral formula
C 8 T 13 L 7 S 3 Cd 20
equine vertebral formula
C 7 T 18 L 6 S 5 Cd 15-21
functions of bone
- support
- protection
- leverage
- storage
- hematopoiesis (blood cell formation)
osteoblasts
-where bone formation begins
osteocytes
-osteoblasts once crystalized in tiny spaces/ lacuna in the bone
osteoclasts
- eat away at bone to remodel it
- this releases calcium back into bloodstream
- ruffled membrane
two types of bone
- cancellous
- compact
cancellous bone
- porous, sponge-like appearance
- makes bone lighter weight
- houses red bone marrow
compact bone
- heavy, dense, strong
- weight bearing
- made up of Haversian systems
epiphysis section of long bone
“ball shape” on either side of the long bone
diaphysis section of long bone
middle section of the long bone
red bone marrow
- contains hematopoietic elements
- site of blood cell generation in body
- protected
yellow bone marrow
- contains primarily adipose tissue
- not hematopoietic, but can revert to red bone marrow
bone formation by endochondral ossification
- bone created by mineralization/ ossification of earlier made cartilage model
- primary growth center: bone replaces cartilage
- secondary growth centers: growth plates found at end of long bones
3 types of muscle
- skeletal muscle
- cardiac muscle
- smooth muscle
skeletal muscle
- striated, tubular
- multinucleated
- usually attaches to skeleton
- voluntary
- function: execute movement
cardiac muscle
- branched, striated, tubular
- one nucleus
- occurs only in heart
- thankfully not under voluntary control
- function: rhythmic beat without nerve input (automaticity)