A&P - Skeletal System Flashcards

Terms Definitions
saddle phallanges/metacarpals/metatarsals
cancellous
spongy bone; lattice
pivot
atlas/axis radius,unla (proximal)
medial
towards middle (opposite lateral)
hing
elbow, knee, between phalanges
posterior
more towards back (opposite interior)
ball and socket
hip and shoulder
CERVICAL VERTEBRAE
Found in the neck
hinge joint
back and forth motion
actin
thin filaments of myofibrils contain this protein
myosicn
thick filaments of myofibrils contain this protein
distal
farther from point of attachment (opposite proximal)
superior
more towards the top (opposite inferior)
periosteom
membrane surrounding the outside of the bone with blood vessels, nerves, attachment of tendons, and ligaments
syndesmos
bone bound together with ligament distal tibia, fibula
spongy and compact
2 types of bone...
tendons
thick bands of connective tissue, attach muscles to bones
red marrow
tissue within bones that produce RBCs
osteon
encapsulation of a blood vessel (from the inside heading out) in the periosteum during bone building
sympysis
public bone inter vertebral discs and vertebrae
Hinge
allows bones to bend back and forthknee
EPIPHYSES
Each end are coverd with articular cartilage and articulate with other bones. Secondary ossification center is found here. (Long Bone)
ligament
tough band of connective tissue that attaches one bone to another
Skeletal System
system of bones, cartilage, joints, and ligaments
saddle joint
*hand and finger* joint that permits one bone to slide in two directions
irregular bones
ex: vertebrae, many facial bones, ear ossicles; usually connected to several other bones
ossification
in long bones beings in diaphsis then ephysistakes 25 years to complete starting with the scapula two types
1. fibrous membrane in facial bones.mandible, ciavicle
2. hyaline cartliage forms models of the most other bones that is slowly replaced by bone
APPENDICULAR SKELETON
Consists of the pectoral Girdle, upper limbs, pelvic girdle, and lower limbs.
Knee & Elbow joints
Examples of a hinge joint
yellow marrow
tissue inside bone made up of fat cells
growth of bones.
growth of bone length at epiphyseal cartilage plate - vitamin D is needed is obsurm calcium from nutrients along with growth and sex hormones affecting osteblast plate gets narrower with age, then finally disappears in adulthood at ~25 years
206 bones
How many bones are in the human body?
hinge joints
(knee) a freely movable joint - like a door -
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