chapter 6 - anatomy
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| contractility | ability to shorten w/ force
🗑
|
||||
| excitability | ability to respond to stimulus
🗑
|
||||
| extensibility | ability to be stretched
🗑
|
||||
| elasticity | ability to recoil after being stretched
🗑
|
||||
| epimysium | connective tissue sheath that surrounds skeletal muscle
🗑
|
||||
| fascia | connective tissue that is outside the epimysium that separates muscles
🗑
|
||||
| what do muscles do that are essential to the body's maintenance? | produce heat
🗑
|
||||
| fasciculi | numerous visible bundles of muscle
🗑
|
||||
| perimysium | loose connective tissue that surrounds the fasciculi
🗑
|
||||
| what are fasciculi composed of? | single muscle cells called muscle fibers
🗑
|
||||
| endomysium | surrounds each muscle fiber
🗑
|
||||
| myofibrils | threadlike structure that extends from one end of the fiber to the other
🗑
|
||||
| actin myofilaments | thin myofilaments(looks like pearls twisted together)
🗑
|
||||
| myosin myofilaments | thick myofilaments(looks like mini golf clubs)
🗑
|
||||
| sarcomeres | join end to end to form myofibril
🗑
|
||||
| what is on each side of the Z line? | I bands: which consists of actin
🗑
|
||||
| what does the H zone consist of? | myosin ONLY
🗑
|
||||
| What is the charge difference between membranes called? | resting membrane potential
🗑
|
||||
| what is action potential? | the brief reversal back of the charge of stimulus
🗑
|
||||
| motor neurons | nerve cells that carry action potential to skeletal muscle fibers
🗑
|
||||
| neuromusclular junction | axons that branch into the muscle and connect
🗑
|
||||
| motor unit | single motor neuron and all skeletal muscle innervates
🗑
|
||||
| presynaptic terminal | enlarged nerve terminal
🗑
|
||||
| synaptic cleft | space between the presynaptic terminal and muscle cell
🗑
|
||||
| postsynaptic terminal | muscle fiber
🗑
|
||||
| synaptic vesicles | they secrete neurotransmitters
🗑
|
||||
| acetylcholine | neurotransmitters
🗑
|
||||
| what is creatine phosphate? | a high energy molecule
🗑
|
||||
| what does anaerobic respiration mean? | w/o oxygen
🗑
|
||||
| aerobic respiration | with oxygen
🗑
|
||||
| what is oxygen debt? | amount of oxygen needed in chemical reactions to convert lactic acid to glucose
🗑
|
||||
| what is muscle fatigue? | results when ATP is used during muscle contraction faster than it can be produced
🗑
|
||||
| what does isometric mean? | length of the muscle stays the same nut tension increases
🗑
|
||||
| what does isotonic mean? | muscle length changes but tension stays same
🗑
|
||||
| muscle tone | constant tension produced by muscles for long periods of time
🗑
|
||||
| fast twitch fibers | contract quickly and fatigue quickly
🗑
|
||||
| slow twitch fibers | contract more slowly and are more resistant to fatigue
🗑
|
||||
| origin of the muscle | most stationary end of muscle
🗑
|
||||
| insertion | part of muscle undergoing most movement
🗑
|
||||
| belly of muscle | inbetween origin and insertion
🗑
|
||||
| can muscles have more then one origin? | yes
🗑
|
||||
| what are synergists? | muscles that work together
🗑
|
||||
| what are antagonists? | muscles that work against each other
🗑
|
||||
| what is a prime mover? | a muscle in a group of synergists that does the most moving
🗑
|
||||
| what does the occipitofrontalis do? | moves eyebrows
🗑
|
||||
| orbicularis oris? | moves mouth
🗑
|
||||
| orbicularis oculi? | closes eyes
🗑
|
||||
| buccinator? | flattens cheeks
🗑
|
||||
| zygomaticus? | smile
🗑
|
||||
| levator labii superioris? | snarling
🗑
|
||||
| depressor anguli oris? | frowning
🗑
|
||||
| two types of chewing muscles | masseter and temporalis
🗑
|
||||
| what are intrinsic muscles? | changes the shape of the tongue
🗑
|
||||
| what are extrinsic muscles? | moves tongue
🗑
|
||||
| prime neck mover? | sternocleidomastoid
🗑
|
||||
| what is torticollis? | wry neck
🗑
|
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:
jess_call11
Popular Science sets