Skeletal and Muscular System
Across
- 1. Neurons that control effectors are called _____ neurons.
- 4. Cell that will form bone tissue
- 9. Which skeleton consists of the bony and cartilaginous parts that support and protect the organs of the head, neck, and trunk?
- 10. The neurotransmitter that is released from the vesicle of a motor neuron starting the process of a muscle contraction.
- 11. A small gap called the synaptic _____ separates the motor neuron and the muscle fiber.
- 13. Thick Muscle Filament
- 14. Layers of dense connective tissue called _____ separate an individual skeletal muscle from adjacent muscles and hold it in position.
- 15. What are functional junctions between bones called?
- 16. _______ system that supports and protects softer tissues, provides points of attachment for muscles, house blood-producing cells, and store inorganic salts.
Down
- 2. Cell that breaks down bone tissue
- 3. Acetylcholine that stimulated the muscle fiber is rapidly decomposed by the enzyme ______.
- 5. The organization of the Myosin and Actin filaments produces the characteristic alternating light and dark _____.
- 6. The model of muscle contraction that includes all of the actin-myosin interactions.
- 7. The shaft of the bone, between the epiphysis is called what?
- 8. Which skeleton consists of the bones of the upper and lower limbs?
- 10. Thin Muscle Filament
- 11. Which bone runs horizontally between the manubrium of the sternum and the acromion process of the scapulae?
- 12. At each end of a long bone which articulates with another bone.