click below
click below
Normal Size Small Size show me how
Bone Anatomy pg 142
| Question | Answer |
|---|---|
| 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 |