Term
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Definition
Synarthrosis,
Amphiarthrosis,
Diarthrosis. |
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Term
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Definition
No movement.
Example: Sutures on skull, articulation between the sternum and the ribs |
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Term
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Definition
Little movement.
Example: Pubic symphysis, and the joint between the tibia and the fibula. |
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Term
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Definition
Free movement.
Example: Upper and lower limbs |
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Term
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Definition
Surrounds joints
Lubrication
Nutrient distribution to condrocytes
Shock absorption
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Term
| What happens when cartilage is damaged? |
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Definition
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Term
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Definition
| pocket containing synovial fluid |
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Term
| Characteristics of articular cartilage |
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Definition
No perichondrium
Smooth
Contains synovial fluid.
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Term
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Definition
Articular cartilage
Synovial fluid
Joint capsule
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Term
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Definition
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Move skeleton
Maintain posture
Support soft tissues
Guard entrances
Maintain body temperature
Provide nutrient reserves
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Term
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Definition
| collagen fibers that attach muscle to bone |
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Term
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Definition
bundle of muscle fibers surrounded by perimesium |
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Term
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Definition
made up of actin and myosin |
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Term
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Definition
Zone of overlap: where thin and thick filaments overlap
Z lines: zigzag line going down
A band: thick filaments
I band: thin filaments
M line: center line of thick filaments
H band: thick filaments not overlapping with thin |
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Term
| Muscle cells have lots of nuclei so... |
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Definition
| ...they can repair more easily |
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Term
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Definition
| Functional unit of myofilament |
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Term
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Definition
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Term
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Definition
T-tubule + terminal cisternae |
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Term
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Definition
| Myosin forms a cross-bridge with actin |
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Term
| # of myofibrils in a muscle cell |
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Definition
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Term
| What reveals the active site on actin? |
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Definition
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Term
| What happens to the SR when an action potential occurs |
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Definition
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Term
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Definition
| lies between a muscle and a nerve |
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Term
| What happens to Ca. when muscles relax? |
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Definition
| It moves into terminal cisternae |
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Term
| What makes a membrane depolarize/stimulate |
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Definition
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Term
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Definition
Calcium ions arrive
Active site is exposed and Ca. binds to troponin
Cross bridge formation: Myosin binds to Actin
Myosin pivots in a power stroke
Cross bridge detachment
Myosin reactivation |
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Term
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Definition
Aerobic requires O and makes 17 ATP
Anaerobic aka glycolysis doesnt require O, makes 2 ATP |
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Term
| Peripheral Nervous System |
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Definition
includes all neural tissue outside the CNS |
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Term
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Definition
Sympathetic = fight/flight
Parasympathetic= digestion, urination
Somatic = voluntary body movement
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Term
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Definition
Anoxonic- in brain.
Bipolar- in sense organs. Small, has cell body in center
Unipolar- cell body lies to one side of the center. In PNS
Multipolar- Control skeletal muscles. Cell body at one end |
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Term
| What neurons are found in the Peripheral Nervous System? |
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Definition
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Term
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Definition
Cell body- contains nucleus
Dendrite- where information is received
Axon- long part
Axon Hillock-base of axon, near body
Telodendria- end of axon
Synaptic Terminals- End of Telodendria. Communicates with other cells |
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Term
| The peripheral Nervous System carries what information? |
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Definition
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Term
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Definition
| Isolates the CNS from chemicals in the blood |
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Term
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Definition
Mechanical = Respond to physical distortion of membrane. Important for sensory receptors
Chemical = produce graded potentials. Found on dendrites and cell bodies of neurons
Voltage = Transmembrane potential. Sodium and potassium channels |
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Term
| 3 Graded Potential Changes |
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Definition
Depolarization- Transmembrane potential increases from resting potential
Repolarization- Decreasing back to resting membrane potential
Hyperpolarization- Decreasing past resting membrane potential
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