5 Written Questions
5 Matching Questions
- Three Parts to the structure of a Neuron:
- As Sarco Shortens
- Parasympathetic Nervous System
- The sliding filament theory
- a actin filaments slide over myosin.
Z-lines approach end of myosin filaments
- b surrounds bundle
- c Cell Body, Dendrites, Axon
- d the division of the autonomic nervous system that calms the body, conserving its energy (Rest and Digest)
- e • Formation of cross bridges between actin and myosin filaments.
• Reduction in distance between z-lines or sarcomere "power stroke"
• ATP is required for muscle contraction
o Myosin ATPase breaks down ATP as fiber
5 Multiple Choice Questions
- This nervous system provides involuntary control over smooth muscle, cardiac muscle, and glands.
- Increased ability to maintain cardiac output against increased BP during weight training
- Carries information from skin, sensory organs, skeletal muscles, joints, and internal organs to CNS; directs voluntary movements
- o maximal for production
o Speed of contraction
o muscle fiber efficiency
- 600 (40-50% body weight)
5 True/False Questions
The site where the motor neuron and muscle cell meet is called the: → neuromuscular junction
Connective Tissue → stabilizes and supports components of skeletal muscle
Surrounds muscle at each organization level.
Stretch Reflex → Basic skeletal muscle unit. Capable of force production and shortening. Arrangement of protein filaments and gives straight appearance.
Sarcopenia → • 10% muscle mass lost is between 25-50 years of age
• additional 40% lost between 50-80 years of age
• Also a loss of fibers and gain in slow fibers
• Also due to reduced physical activity
Atrioventricular node → delays impulse by 1/10 of second, allowing atria to contract before ventricles