Ch.6 Muscle Word Scramble
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Question | Answer |
The ability of skeletal muscle to shorten with force. | What is Contractility. |
The capacity of skeletal muscle to respond to a stimulus. | What is Excitability. |
The ability to be stretched. | What is extensibility. |
Ability to recoil to their original resting length after they have been stretched. | What is elasticity. |
Each skeletal muscle is surrounded by a connective tissue sheath called. | What is Epimysium. |
Another connective tissue located outside the epimysium. It surrounds and separates muscles. | What is fascia. |
Muscle composed of numerous visible bundles | What is muscle fascicle. |
Muscle surrounded by loose connective tissue | What is Perimysium. |
The fascicle are composed of single muscle cells | What is Fibers. |
Muscle Cells | What is Muscle Fibers. |
Buttocks | What is Gluteus Maximus. |
Chest Muscle | What is Pectoral Muscle. |
Anterior thigh muscle | What is Quadriceps Femoris. |
Posterior thigh muscle | What is Hamstrings. |
Top arm muscle | What is Bicep |
Bottom arm muscle | What is Tricep |
ATP | What is Adenosine Triphosphate |
ADP | What is Adenosine Diphosphate |
Creatine Phosphate | What is High-energy molecule |
Anaerobic respiration | Without oxygen |
Aerobic respiration | With oxygen (more efficient) |
Isometric | (Equal Distance) - Amount of tension increases during the contraction process |
Isotonic | (Equal Tension) - But the length of the muscle changes |
Muscle tone | Keeps head up and back straight |
Fast twitch fibers | Contract quickly and fatigue quickly |
Slow twitch fibers | Contract more slowly and are more resistant to fatigue |
Origin | Most stationary end of the muscle |
Insertion | Muscle undergoing the greatest movement |
Belly | Portion of muscle between the origin and insertion |
Synergists | Muscles that work together to accomplish specific movements |
Antagonists | Muscles that work in opposition |
Occipitofrontalis | Raises the eyebrows |
Prime Mover | Muscle that plays a major role among a group of synergists |
Orbicularis oculi | Closes the eyelids and causes "crows feet" |
Orbicularis oris | Puckers the lips |
Buccinator | Flattens the cheeks |
Orbicularis oris/ Buccinator | Kissing muscles |
Zygomaticus | Smiling muscle |
Levator labii superioris | sneering |
Depressor anguli oris | frowning |
Mastication | Chewing |
Intrinsic tongue muscles | change the shape of the tongue |
Extrinsic tongue muscles | move the tongue |
Trapezius | Rotates scapula |
Serratus anterior | pulls scapula anteriorly |
Pectoralis major | Adducts and flexes the arm |
Latissimus dorsi | Medially rotates, adducts, and powerfully extends the arm |
Deltoid | Attaches the humerous to the scapula and clavicle |
Triceps brachii | extends the forearm |
Biceps brachii | Flexes the forearm, Occupies the anterior compartment of the arm |
Brachialis | Flexes forearm |
Brachioradialis | Flexes and supinates the forearm |
Flexor carpi | Flexes the wrist |
Extensor carpi | Extends the wrist |
Flexor digitorum | flexes the fingers |
Extensor digitorum | Extends the fingers |
Sartorius | Flexes the thigh |
Sliding filament mechanism | the sliding of actin myofilaments past myosin myofilaments during contraction |
Muscle twitch | Contraction of an entire muscle in response to a stimulus |
Threshold | muscle fiber will not respond to stimulus until that stimulus reaches a level |
Lag phase | time between application of a stimulus to a motor neuron and the beginning of a contraction |
contraction phase | time of contraction |
Relaxation phase | time during which the muscle relaxes |
Tetany | muscle remains contracted without relaxing |
recuitment | increase in number of motor unit being activated |
Created by:
Dalton Willis
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