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Why do arteries have an internal ring of smooth muscle?
the tunica media consists almost entirely of smooth muscle why?
What is the strongest muscle group?
the heart, almost entirely made of muscle; strong enough to lift approx. 3000lbs
What is the function of the soleus muscle?
The soleus muscle is the big muscle at the back of the calf. This muscle is what supports the leg during walking, standing, and running.
What is the function of the trachealis muscle?
The primary function of the trachealis muscle is to constrict the trachea, allowing air to be expelled with more force e.g. during coughing.
How does consuming salt help prevent muscle cramps during physical activity?
Consuming salt helps prevent muscle cramps during physical activity by replenishing electrolytes lost through sweating. Electrolytes, such as sodium, help regulate muscle contractions and nerve function, preventing cramps and maintaining proper muscle function during exercise.
How does the i band in muscle contribute to the overall structure and function of muscle tissue?
The I band in muscle contains actin filaments that help with muscle contraction. It contributes to the overall structure and function of muscle tissue by allowing for the sliding of actin and myosin filaments during muscle contraction, which leads to muscle movement and strength.
What are myotubes and how do they contribute to muscle development and function?
Myotubes are immature muscle cells that form during muscle development. They contribute to muscle growth and function by fusing together to create mature muscle fibers. These fibers contract and generate force, allowing for movement and strength in the body.
What is the function role of t tubules?
Enhance cellular communication passage for nervous stimulation during muscle contraction.
What is the function of the layer of connective tissue that surrounds a skeletal muscle?
The layer of connective tissue that surrounds a skeletal muscle is called the epimysium. Its function is to provide support and protection to the muscle fibers, as well as to help transmit force generated by the muscle during contraction.
What is the structure and function of the muscle I band in skeletal muscle fibers?
The muscle I band is a region in skeletal muscle fibers that contains only thin filaments made of actin. Its main function is to anchor the thin filaments and help maintain the structure of the muscle fiber during contraction and relaxation.
What is happening at the cellular level during a muscle cramp?
During a muscle cramp, the muscle fibers contract involuntarily and do not relax. This is often caused by an imbalance of electrolytes like calcium and potassium, which are essential for muscle function. The excessive firing of nerve signals can also contribute to muscle cramps.
What tissue's major function is to contract?
The muscle tissue's main function is to contract.
