Systems
Where is the cardiac muscle found?
the heart
How many muscles are there in the body?
600+
Tough, cord-like structure made of fibrous connective tissue that connects muscles to bone is.....?
tendon
Bending a body part or decreasing the angle of a joint
True or False? the buccinator is beneath the masseter?
True
Which system helps with movement?
Skeletal
What are the functions of the muscular system?
Movement, stability, protection, heat production, and control of body openings
What structure binds muscles to muscles?
Aponeurosis
True or false: Eversion is turing the sole of the foot medially?
False!! It moves it laterally
What muscle helps protect internal organs, stabilize the core, and enables movements like bending forward?
Rectus Abdominis
Which function moves substances and regulates flow?
Smooth
Muscles form valve-like structures called...?
What structure encloses the entire muscle?
Epimysium
What is the difference between origin and insertion?
Origin is attachment for less movable bone and is closer to the center of the body; Insertion is attachment for more movable bone and is farther from the center of the body
What muscle helps with neck rotation?
The Sternocleidmastoid
Which system is self-exciting?
Cardiac
Does protection absorb impact or shield organs?
It does both
What connective tissue located just below the skin helps support and hold together muscle, bones, nerves, and vessels?
Fascia
What is an example of depression?
Lowering your shoulders
What muscle is the most important for breathing?
The diaphragm
What allows for synchronized heartbeats?
Intercalated discs
What are the two neurotransmitters found in cardiac and smooth?
Acetylcholine (slows down cardiac) and norepinephrine (speeds up cardiac)
(Smooth muscles respond to both)
What did Mrs. Lopez's hair tie example represent?
Endomysium; the amount of support and structure that it has.
What is protraction?
moving body part anteriorly
Side to side, twist and turn muscles
The obliques