Week 2-Muscular
Across
- 3. What protein filament within muscle fibers slides past myosin to cause muscle contraction? Actin
- 5. Which type of muscle is found in the walls of internal organs and works involuntarily? Smooth
- 6. What do muscles help maintain by stabilizing joints and balance? Posture
- 10. What protein filament works with actin to enable muscle contraction? Myosin
- 12. What byproduct of muscle activity helps regulate body temperature? Heat
- 14. What is the smallest muscle in the human body, located in the ear? Stapedius
- 16. What term highlights the interplay between muscles and bones? Musculoskeletal
- 17. What neurotransmitter triggers muscle contraction by binding to receptors on the muscle cell membrane? Acetylcholine
- 18. What process describes the rhythmic contraction of smooth muscles to move food through the digestive tract? Peristalsis
- 19. What bodily function is facilitated by smooth muscles in the digestive tract? Digestion
Down
- 1. What process describes heat production by muscle activity? Thermogenesis
- 2. What alternative term is used for the muscular system, emphasizing its role in movement? Locomotor
- 4. What type of muscle is responsible for voluntary movements and is attached to bones by tendons? Skeletal
- 7. What does the muscular system provide that helps maintain posture and body position? Stability
- 8. What structures connect muscles to bones, allowing for movement? Tendons
- 9. What type of muscle is unique to the heart and responsible for pumping blood? Cardiac
- 10. What primary function does the muscular system enable in the body? Movement
- 11. What vital function is aided by the rhythmic contractions of cardiac and smooth muscles? Circulation
- 13. What is the largest muscle in the human body, located in the hip and thigh area? Gluteus
- 15. What energy molecule is necessary for muscle contraction and relaxation? ATP