chapter 6 anatomy Word Scramble
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Question | Answer |
Skeletal muscle | Attached to bones |
Cardiac muscle | Walls of the heart |
Smooth muscle | Mostly in the hollow visceral organs |
Deep to the dermis | Hypodermis |
Epidermis | Outer layer |
Nerve fiber | Axon |
Irritability | Ability to receive and responds to stimulus |
Anerobic | Without oxygen |
Aerobic | With oxygen |
Aerobic or endurance | Jogging biking . Result in strong result of more flexible muscles . More resistance to fatigue |
Contractility | The ability of skeletal muscle shortens force |
Excitability | The capacity of skeletal muscle to respond to a stimulus |
Extensibility | The ability to be stretched |
Elasticity | Ability to recoil to the original resting length after they have been stretched |
Epimysium | Connective tissue Sheath that surrounds the skeletal muscle |
Fascia | Connective tissue located outside the Epimysium |
Perimysium | Loose connective tissue that surrounds |
Muscle cells | Muscle fibers |
Myofibrils | Threadlike structure that extends from one end of the Farber to another |
Actin myofilaments | Thin |
Myosin myofilaments | Thick |
Actin and myosin myofilaments form highly ordered units | Sarcomeres |
Motor nuerons | Nerve cells that carry action potential to skeletal muscle fibers |
Nueromuscular junction | Synapse |
Neurotransmitter | Acetylcholine |
Muscle fiber | Postsynaptic terminal |
Muscle cell | Synaptic cleft |
The brief reversal back of the charge is called | Action potential |
The charge difference across the membrane is called | Resting membrane potential |
Muscle twitch | The contraction of an entire muscle in response to a stimulus that causes the action potential in one or more muscle fibers |
Phenomenon | All or none response |
A muscle fiber will not respond to stimulus until that stimulus reaches a level called | threshhold |
Lag phase | The beginning of a contraction |
Contraction phase | The time of the contraction |
Relaxation phase | The time that the muscle relaxes |
Tetany | Where the muscle reminds contracted without relaxing |
The increase in number of motor units being activated is called | recriutment |
ATP | Is needed for energy for muscle contraction |
ATP | Is produced in the mitochondria |
ATP | Is short-lived and unstable |
Aerobic | With O |
Anaerobic | Without O |
Muscle fatigue | Get tired |
Isometric | Tension changes length same |
Isotonic | Tension same length changes |
Muscle tone | Constant tension |
Fast twitch | Light meant |
Slow twitch | Dark meat |
Oxygen debt | Trying to get o back |
Orgin | Head |
Insertion | End |
Belly | Between insertion and head |
Muscles that work together | Synergist |
Muscles that work against each other | Antagonists |
Plays a major role | Prime moverv |
Gluteus Maximus | Buttocks |
Flexor carpi | Flexes the wrist |
Extensor carpi | Extends the wrist |
Extensor digitorum | Extends the fingers |
Flexor digitorum | Flexes the fingers |
Retinaculum | Bracelet |
Tricep | Extends 4 arm |
Biceps | Flex the forarn |
Brachialis | Flexes 4 arm |
Trapezius | Rotates scapula |
Sereatus | Pulls scapula |
Mastication | Chewing |
Sternocliedomastoid | Neck |
Intrinsic | Change shape |
Extrinsic | Move tongue |
Zygomaticus | Smiling |
Buccinator | Flattens checks |
Occipitofrontalis | Raises the eyebrows |
Orbicularis oculi | Closes eyelids |
Orbicularis oris | Puckers the lips |
Created by:
ben.romans
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