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Bone Anatomy pg 142

CONDYLE Rounded process that articulates with another bone
Crest Narrow ridgelike projection
Epicondyle Projection situated above a condyle
Facet Small nearly flat surface
Fontanel Soft spot in the skull where membranes cover the space between bones
Foramen An opening through the bone that is usually a passageway for blood vessels, nerves, or ligaments
Fossa Large pit of depression
Fovea tiny pit or depression
Head AN enlargement of the end of a bone
Meatus Tubelike passageway within a bone
Process Prominent projection on a bone
Sinus a cavity within a bone
Spine a thornlike projection
Suture interlocking line of union between bones
Trochanter A large process
Tubercle a small, knoblike process
Tuberosity a knoblike process usually larger than a tubercle
peristalsis rythmic waves of muscle contraction in walls of certain tubular organs
prime mover muscle responsible for particular type of movement
synergist assists prime mover
antagonist opposes the prime mover
aponueroses sheet of connective tissue which connects muscles
tendon cordlike mass of white fibrous tissue that connects a muscle to a bone
troponin/tropomuosin proteins that are part of actin filaments
acetylcholine nuerotransmitter that secretes at axon ends of transmits nerve messages across synapses
hemoglobin pigment of red blood cell that transports oxygen
sarcomere individual contractile units of a myrofibril
z-lines ends of the sarcomere
I-band actin
A-band where actin and myosin overlap
H-zone myosin
M-line protein that anchors the myosin in place within the sarcomere
actin thin protein/sliding filament
myosin thick protein/does not move
cross bridges branch that extends off the myosin and latches on to the actin to pull
muscle origin where a muscle begins, bone does not move
muscle insertion muscle ends, bone moves, on the opposite side of the joint
Created by: houtsh