Shared Flashcard Set

Details

36 Skeletal system
skeleton, muscles, skin!
40
Biology
9th Grade
07/15/2009

Additional Biology Flashcards

 


 

Cards

Term
periosteum
Definition
a bone is surrounded by THIS tough layer of connective tissue
Term
haversian canals
Definition
a network of tubes that contain blood vessals and nerves - goes through compact bone
Term
osteoblasts
Definition
produce bone
Term
osteocytes
Definition
mature bone cells
Term
osteoclasts
Definition
break bone cells
Term
bone marrow
Definition
cavities within bone that contain this soft tissue
Term
yellow marrow
Definition
tissue inside bone made up of fat cells
Term
red marrow
Definition
tissue within bones that produce RBCs
Term
cartilage
Definition
a connective tissue that the skeleton of an embryo is ccomposed of
Term
ossification
Definition
bone formation found in embryos, children and teens
Term
joint
Definition
place where one bone attaches to another
Term
ball and socket joint
Definition
(shoulder) freely jmoveable joint- widest range of motion
Term
hinge joints
Definition
(knee) a freely movable joint - like a door -
Term
pivot joint
Definition
arm joint * freely movable joint - allow bones to rotate around eachother
Term
saddle joint
Definition
*hand and finger* joint that permits one bone to slide in two directions
Term
ligaments
Definition
a layer of tough connective tissue between bones
Term
straited muscles
Definition
muscles like skeletal and cardiac muscles (with lines)
Term
skeletal muscles
Definition
straited muscles that help move bones (muscle tissue)
Term
smooth muscles
Definition
involuntary muscles, not straited (muscle tissue)
Term
cardiac muscles
Definition
straited, found only in heart
Term
myosicn
Definition
thick filaments of myofibrils contain this protein
Term
actin
Definition
thin filaments of myofibrils contain this protein
Term
neuromucscular junction
Definition
a point of contact between a motor neuron and skeletal muscle cell
Term
acetylcholine
Definition
pockets in axon terminals of motor neurons release this neurotransmitter that diffuses across a synapse producing impulse
Term
tendon
Definition
tough connective tissues that join bones to skeletal muscles
Term
epidermis
Definition
outer layer of skin - dead
Term
keratin
Definition
a protein found in skin that produces a waste product of surface water
Term
melanin
Definition
found in the epidermis - a dark brown pigment that helps protect from sun damage
Term
dermis
Definition
the inner layer of skin
Term
hypodermis
Definition
sometimes considered as the third layer of skin - subcutaneous fat
Term
hair follicles
Definition
tubelike pockets of epidermal cells that extend into the dermis
Term
osteon
Definition
holes in compact bone that provide way for haversian conals
Term
superior
Definition
more towards the top (opposite inferior)
Term
inferior
Definition
more towards bottom (opposite superior)
Term
interior
Definition
more towards front (opposite posterior)
Term
posterior
Definition
more towards back (opposite interior)
Term
proximal
Definition
closer to the point of attachment (opposite distal)
Term
distal
Definition
farther from point of attachment (opposite proximal)
Term
medial
Definition
towards middle (opposite lateral)
Term
lateral
Definition
towards end (opposite medial)
Supporting users have an ad free experience!