Ch.6
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| The ability of skeletal muscle to shorten with force | Contractility
🗑
|
||||
| The capacity of skeletal muscle to respond to a stimulus | Excitability
🗑
|
||||
| The ability to be stretched | Extensibility
🗑
|
||||
| Skeletal muscle is surrounded by this connective tissue sheath | Epimysium
🗑
|
||||
| Another connective tissue located outside the epimysium | Fascia
🗑
|
||||
| Loose connective tissue that surrounds the fascicle | Perimysium
🗑
|
||||
| The fasciculi are composed of single muscle cells called this | Fibers
🗑
|
||||
| Each fiber is surrounded by this connective tissue sheath | Endomysium
🗑
|
||||
| The cytoplasm of each fiber is filled with this | Myofibrils
🗑
|
||||
| Thin myofilaments | Actin Myofilaments
🗑
|
||||
| Thick myofilaments | Myosin Myofilaments
🗑
|
||||
| Actin and myosin myofilaments form highly ordered units called this | Sarcomeres
🗑
|
||||
| The charge difference across the membrane is called this | Resting Membrane Potential
🗑
|
||||
| The brief reversal back of the charge is called this | Action Potential
🗑
|
||||
| Nerve cells that carry action potentials to skeletal muscle fibers | Motor neurons
🗑
|
||||
| Each branch that connects to the muscle | Synapse
🗑
|
||||
| A single motor neuron and all the skeletal muscle fibers it innervates | Motor Unit
🗑
|
||||
| The enlarged nerve terminal | Presynaptic Terminal
🗑
|
||||
| The space between the presynaptic terminal and the muscle cell | Synaptic Cleft
🗑
|
||||
| The muscle fiber | Postsynaptic Terminal
🗑
|
||||
| Each presynaptic terminal contains synaptic vesicles that secrete this neurotransmitter | Acetylcholine
🗑
|
||||
| The acetylcholine released into the synaptic cleft between the neuron and muscle cell is rapidly broken down by this enzyme | Acetylcholinesterase
🗑
|
||||
| The sliding of actin myofilaments past myosin myofilaments during contraction is called this | Sliding Filament Mechanism
🗑
|
||||
| Contraction of an entire muscle in response to a stimulus that causes the action potential in one or more muscle fibers | Muscle twitch
🗑
|
||||
| A muscle fiber will not respond to stimulus until that stimulus reaches a level called this | Threshold
🗑
|
||||
| The time between application of a stimulus to a motor neuron and the beginning of a contraction | Lag Phase
🗑
|
||||
| The time of contraction | Contraction Phase
🗑
|
||||
| The time during which the muscle relaxes | Relaxation Phase
🗑
|
||||
| Muscle remains contracted without relaxing | Tetany
🗑
|
||||
| The increase in number of motor units being activated | Recruitment
🗑
|
||||
| Needed for energy for muscle contraction and is produced in the mitochondria | ATP(adenosine triphosphate)
🗑
|
||||
| ATP reduces to this stable compound | ADP (adenosine diphosphate)
🗑
|
||||
| Can store another high-energy molecule | Creatine Phosphate
🗑
|
||||
| Without oxygen | Anaerobic Respiration
🗑
|
||||
| With oxygen (more efficient) | Aerobic Respiration
🗑
|
||||
| The increased respiration provides the oxygen to pay back the oxygen debt | Oxygen Debt
🗑
|
||||
| Results when ATP is used during muscle contraction faster than it can be produced in the muscle cells | Muscle Fatigue
🗑
|
||||
| The length of the muscle does not change, but the amount of tension increases | Isometric
🗑
|
||||
| The amount of tension produced by the muscle is constant, but the length of the muscle changes | Isotonic
🗑
|
||||
| Refers to constant tension produced by muscles of the body for long periods of time | Muscle Tone
🗑
|
||||
| Contract quickly and fatigue quickly | Fast-twitch Fibers
🗑
|
||||
| Contract more slowly and are more resistant to fatigue | Slow-twitch Fibers
🗑
|
||||
| The most stationary end of the muscle | Origin
🗑
|
||||
| The end of the muscle undergoing the greatest movement | Insertion
🗑
|
||||
| The portion of the muscle between the origin and the insertion | Belly
🗑
|
||||
| Muscles that work together to accomplish specific movements | Synergists
🗑
|
||||
| Muscles that work in opposition to one another | Antagonists
🗑
|
||||
| In a group of synergists, if this muscle plays the major role in accomplishing the desired movement | Prime Mover
🗑
|
||||
| Raises the eyebrows | Occipitofrontalis
🗑
|
||||
| Closes the eyelids and causes “crows feet” wrinkles in the skin at the lateral corners of the eye | Orbicularis oculi
🗑
|
||||
| Puckers the lips | Orbicularis oris
🗑
|
||||
| Flattens the cheeks | Buccinator
🗑
|
||||
| Smiling muscle | Zygomaticus
🗑
|
||||
| Sneering | Levator Labii Superioris
🗑
|
||||
| Frowning | Depressor Anguli Oris
🗑
|
||||
| Chewing | Mastication
🗑
|
||||
| Change the shape of the tongue | Intrinsic Tongue Muscles
🗑
|
||||
| Move the tongue | Extrinsic Tongue Muscles
🗑
|
||||
| lateral neck muscle and prime mover; rotates and abducts the head | Sternocleidomastoid
🗑
|
||||
| group of muscles on each side of the back; responsible for keeping the back straight and the body erect | Erector Spinae
🗑
|
||||
| Muscles that move the thorax | Thoracic Muscles
🗑
|
||||
| Elevate the ribs during inspiration | External Intercostals
🗑
|
||||
| Contract during forced expiration | Internal Intercostals
🗑
|
||||
| Accomplishes quiet breathing | Diaphragm
🗑
|
||||
| The muscles of the anterior abdominal wall flex and rotate the vertebral column | Abdominal Wall Muscles
🗑
|
||||
| Tendinous area of the abdominal wall | Linea Alba
🗑
|
||||
| On each side of the linea alba | Rectus Abdominis
🗑
|
||||
| Cross the rectus abdominis at three or more locations | Tendinous Inscriptions
🗑
|
||||
| Rotates the scapula | Trapezius
🗑
|
||||
| Pulls scapula anteriorly | Serratus Anterior
🗑
|
||||
| Adducts and flexes the arm | Pectoralis Major
🗑
|
||||
| Medially rotates, adducts, and powerfully extends the arm | Latissimus Dorsi
🗑
|
||||
| Attaches the humerus to the scapula and clavicle | Deltoid
🗑
|
||||
| Extends the forearm | Triceps Brachii
🗑
|
||||
| Flexes the forearm | Biceps Brachii
🗑
|
||||
| Flexes forearm | Brachialis
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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
Created by:
aleftyjeffrey
Popular Anatomy sets