1.2.2 - 1.2.4 - difference between muscles
No description yet. This curated deck is ready for daily study.
Card preview (10)
What are the characteristics of a skeletal muscle?
• work with your bones, tendons, and ligaments • attaches to bone • voluntary movement • striated (stripes)
What are the characteristics of a cardiac muscle?
• lines the heart’s walls • don’t control cardiac muscles, your heart tells them to contract • striated (stripes) • helps your heart pump blood that travels through your cardiovascular system • contract at the same time
What are the characteristics of a smooth muscle?
• lines the insides of organs ex. stomach, bladder • work without you having to think • essential jobs ex. move waste through your intestines and help your lungs expand when you breathe • more mitochondria to help with fatigue (working all the time without us thinking)
What does the origin of a muscle mean?
the attachment of a muscle tendon to a stationary bone (fixed - fixed point in time, origin story
What does the insertion of a muscle mean?
the attachment of a muscle tendon to a moveable bone
KNOW WHERE DIFFERENT MUSCLES ARE
IN THE BODY
BE ABLE TO ANNOTATE THE
STRUCTURE OF A SKELETAL MUSCLE
BE ABLE TO ANNOTATE THE
STRUCTURE OF SACROMERE, ACTIN, MYOSIN, Z-LINE
What is myosin?
70-80% of total protein thick filament uses ATP for muscle contraction myosin head moves back and forth to perform a muscle contraction
What is actin?
20% of myofibrillar protein thin filament arranged like a twisted pearl necklace myosin head attaches to the actin