Question | Answer |
What is another name for a muscle cell? | MUSCLE FIBER |
The more movable attachment to the bone is called what? | INSERTION |
The muscle attachment to the more stationary bone is called what? | ORIGIN |
What is the name of the protein that makes up the thin myofilaments? | ACTIN |
What is the name of the protein that makes up the thick myofilaments? | MYOSIN |
What is the basic functional unit of contraction in skeletal muscle? | SARCOMERE |
What are the three functions of the skeletal system? | MOVEMENT, POSTURE, AND HEAT PRODUCTION |
What molecule supplies energy for muscle contraction? | ATP |
What is the waste product produced when the muscle must must switch to an energy supplying process that does not require oxygen? | LACTIC ACID |
What is the name for a single motor neuron that innervates muscle? | MOTOR UNIT |
What is the name for the minimal level of stimulation required to cause a muscle to contract? | THRESHOLD STIMULUS |
What is the name for the type of muscle contraction that produces movement in a joint and allows the muscles to shorten? | ISOTONIC |
What is the name for the type of muscle contraction that doesn't produce movement and doesn't allow the muscle shorten but it does increase muscle tension? | ISOMETRIC |
What is the term for describing movement of a body part away from the midline of the body? | ABDUCTION |
What is the term used to describe the movement that is opposite of flexion? | EXTENSION |
What term describes the hand position when the body is in anatomical position? | SUPINATION |
Skeletal muscles can also be called? | VOLUNTARY MUSCLES |