The ends of the actin filaments are anchored to the Z-line or disk.
The sarcomere is the primary functional unit of muscle fiber. It is flanked by a Z-band on each end with adjoining I-bands. The Z-band or disk is a dense fibrous structure composed of actin, α-actinin as well as other proteins.
Thin filaments or actin filaments are anchored at one end at the Z-band. Titin is connected to both the Z-band and the M-line. Thick filaments are attached in the middle of the sarcomere at the M-line.
An intermediary filament protein forms a meshwork from one Z-disk to the next across the myofibril. These networks are joined by actin through the protein dystrophin to the sarcolemma.
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Answer:
Explanation:
You have external defense systems, which include your skin, tears, mucus, saliva, stomach acid, cilia (small hairs) and helpful bacteria. ... The skin stops pathogens from entering the blood, at least when you're not bleeding. The tears, mucus, and cilia trap them and help push them back out of your body.
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Answer:
The correct answer to fill in the blank is: has trouble digesting food.
Explanation:
Cholecystokinin (commonly abbreviated as CCK) is a hormone produced in the gastrointestinal system with <u>the function to stimulate the release of digestive enzymes from the pancreas and bile from the gallbladder in order to help with the digestion of fats and proteins</u>.
If Amanda can't produce cholecystokinin, she will have trouble digesting her food.
Answer:
Some viruses attack animal cells. They attach themselves to the host cells and inject the genetic material, which in turn produces new Q-viruses in the host cells. The viruses either have RNA or DNA as their genetic material.
Explanation:
Dominant Genes!!!
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