Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
S. Anat 7
Muscular System
| Question | Answer |
|---|---|
| Muscular system provides | movement |
| Muscular system provides | motility |
| Muscular system produces | heat |
| Muscular system includes | skeletal muscles |
| Muscle cells are specialized for | contraction |
| Each muscle is made of thousands of muscle____ | cells |
| Muscles cells (aka) | muscle fibers |
| The brain recruits a _____number of fibers based on need | higher |
| Anchors muscle to bone and other muscles | tendon |
| Tendons are usually_____ | round |
| Flat sheet like tendon | Aponeurosis |
| Tendons are made of | fibrous connective tissue |
| Tendons are a _____of deep fascia that cover muscle | continuation |
| Tendons merge with _____to anchor to bone | Periosteum |
| Where the muscle originate | Origin |
| The origin is usually the more____of the 2 ends | Stationary |
| The origin is usually the _____end | Proximal |
| Opposite end or the origin | Insertion |
| Insertion is usually across a ___from the origin | joint |
| The primary muscle that brings desired movement | Protagonist |
| Muscle that does the opposite of the desired movement | Antagonist |
| Secondary muscles that bring about desired movement | Synergist |
| Initiates the signal to the muscle in the premotor and motor areas of the cortex | Frontal lobe |
| Coordinates movement | cerebellum |
| Sensation of the muscles, conscious input | parietal lobes |
| Subconscious input | Cerebellum |
| Slight contraction of muscle that is present most of the time | muscle tone |
| Muscle tone changes with____ | position |
| Heat production from normal muscle metabolism | Thermogenesis |
| Thermogenesis due to (2) | Decomposition (chemical reaction), Friction |
| Muscle sense (aka) | proprioception |
| Proprioception is the awareness of the position of ______thus the ____ | Muscles, Joint |
| Muscle since is sensed by____receptors | stretch |
| Stretch receptors detect changes in _____ | length |
| Primary energy source | ATP |
| Secondary energy source | Creatine, phosphate& glycogen |
| The most abundant in energy source | glycogen |
| When oxygen need is greater that the supply | Oxygen debt |
| Breathing to supply the oxygen required by the liver to detoxify lactic acid | Recover oxygen uptake |
| Motor nerves ending at the muscle fiber | Neuromuscular junction |
| Enlarged end of the motor neuron | motor end plate/axon terminal/synaptic knob |
| Axon terminal contains sacs of ____ | acetylcholine (Ach) |
| Cell membrane of the muscle fiber | Sarcolemma |
| Sarcolemma contains _____site for Ach | receptor |
| Sarcolemma contains cholinesterase that_______Ach | deactivates |
| The junction between the axon terminal and the muscle fiber | Synapse |
| Contractile units in the muscle fiber | Sarcomere |
| Actin (aka) | thin filaments |
| Myosin (aka) | thin filaments |
| Thicker contractile protein | Myosin |
| Thick contractile protein that interacts with myosin | actin |
| Protein backbone that anchors actin filaments | Z line |
| Forms the end boundaries of the sarcomeres | Z line |
| Protein that anchors myosin to Z line | titan |
| Inhibitory proteins that prevent contraction when relaxed | troponin, tropomyosis |
| ER of the cell membrane | Sarcoplasmic reticulum |
| Reducing the angle of a joint | flexion |
| Increasing the angle of a joint | extension |
| Tilting the foot/ankle medially | inversion |
| Tilting the foot/ankle laterally | eversion |
| Rotating palm up (forward) | supination |
| Rotating the palm down | pronation |
| R&L side bending | Lateral flexion |
| Rotating around a joint (R, L internal external) | Rotation |
| Moving in a circular motion | circumduction |
| Bring part away from midline | abduction |
| Bring part toward midline | aduction |
| Bring part toward the midline or posteriorly | retraction |
| Bring a part away from the midline or anteriorly | protraction |
| Head (chicken) (A, P, R, L) | translation |
| Decreasing the angle of the ankle joint | dorsiflexion |
| Increasing the angle of the ankle joint | plantar flexion |
Created by:
Sarsileigh
Popular Anatomy sets