Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
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

68C Ch.8 Ph.1 T.3

Hole's Essential of A&P Chapter 8: Muscular System

Name the three types of muscle a.Cardiac b.Smooth c.Skeletal
Cardiac muscle bulk of the heart, dark bands(intercalated disc), allows heart to contract as a unit
Smooth muscle involuntary, no striations, single nuclei
Skeletal muscle voluntary, 40-50% of body weight, crosswise stripes
Aponeuroses connective tissue forms broad fibrous sheets, connect to adjacent muscles/bones
Sarcomere Z-lines, structural unit of skeletal muscle, repeating patterns of units
Tonic contractions specialized contractions few muscle fibers shorten at one time
Neuromuscular junction synapse (functional connection) between the motor neuron and the muscle fiber it controls
Motor unit Motor neuron and skeletal muscle fibers innervated by motor neuron's axonal terminal
Tetanic convulsions steady muscular contracture of stimuli in rapid succession
Tendon projection of connective tissue beyond ends of muscles that attaches to bone
Fascia dense connective tissue that separates skeletal muscle from adjacent muscle and holds it in position
Sarcoplasmic Reticulum network of membranous channels that surround each myofibril and run parallel to it (corresponds to ER)
2 proteins contained within the myofibril a.myosin (thick) b.actin (thin)
Neurotransmitter transmits signals across a synapse from one neuron to another "target" neuron ie muscle cell
Secreted by the neuron, begins the process of muscle fiber contraction acetylcholine
Ways muscles may become fatigued Exercising for increased period of time, interruption in blood supply, lack of acetylcholine in motor neuron axons, lactic acid
The connective tissue that surrounds individual muscle fibers is called endomysium
The dark bands in skeletal muscle that contribute to its striated appearance are known as A bands
When a nerve impulse reaches the end of a motor neuron, acetylcholine is released
ATPase is stored in the globular portion of the myosin filament
Which of the following is not characteristic of the motor end plate on a muscle fiber? synaptic vesicles
Created by: ajwildasin30