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Name the 3 types of fibers in areolar connective tissue?
the three basic types of fibers that are found in connective tissue are collagen fibers, elastic fibers, and reticular fibers
Collagen fibers which run from the fibrous bone covering into the bone itself are called?
Sharpey's Fibers
Chromosomes move along these fibers?
Spindle fibers
Which types of fibers are included in the Organic Fibers--Noncellulosic category?
The Organic Fibers--Noncellulosic category includes fibers such as hemp, jute, and sisal. These fibers are derived from plants but differ from cellulosic fibers like cotton and linen. Noncellulosic fibers are known for their strength and durability, making them a popular choice in various applications.
What secretes norepinephrine adrenergic fibers?
Norepinephrine is mainly secreted by the adrenal medulla and the postganglionic fibers of the sympathetic nervous system, which are also known as adrenergic fibers. These fibers release norepinephrine in response to stress or arousal, helping to initiate the body's fight or flight response.
Are cardiac muscle fibers involuntary?
no
Two main muscle fibers?
Muscle fibers can be smooth or striated. Smooth muscle is often involuntary and line the blood vessels and gastrointestinal tract. Striated muscles may be voluntary, such as skeletal muscle, or involuntary such as cardiac muscle.
What branch of the spinal nerve contain autonomic fibers?
The autonomic fibers are contained within the ventral (anterior) root of the spinal nerve. These fibers are responsible for carrying signals to and from the autonomic nervous system, which controls involuntary bodily functions.
What are the fibers that muscles are made of called?
Muscle fibers, or muscle cells, are made up of two kinds of fibers, or myofilaments. The thin ones are called actin, and the thick ones are called myosin.
What does twitching mean?
to move spasmodically or convulsively; jerk; jump
How cardiac muscle fibers differ from the fibrs of skeletal muscle?
Both cardiac and skeletal muscle cells are striated and contract by the sliding filament mechanism. However, cardiac muscles cells are short, fat, branched, and interconnected unlike the long, cylindrical, multinucleate of skeletal muscle fibers.
What are the muscles called that cannot be controlled?
There are some muscles in the body we cannot control: they are called involuntary muscles and cardiac muscles. Involuntary muscles are found in the digestive tract for example. Cardiac muscles are found in the heart. Neither these two muscle types are controlled. We can control what are called voluntary muscles which are the muscles that were used to move our bones.
What are the tree kinds of muscle tissues?
The 3 types of muscle tissue are cardiac, smooth, and skeletal.Cardiac muscle cells are located in the walls of the heart, appear striated, and are under involuntary control.Smooth muscle fibers are located in walls of hollow visceral organs, except the heart, appear spindle-shaped, and are also under involuntary control.Skeletal muscle fibers occur in muscles which are attached to the skeleton. They are striated in appearance and are under voluntary control.
What happens when these muscles contract?
When muscles contract, the brain sends signals through the nervous system to the motor neuron that supplies several muscle fibers. There are different versions of contraction, which includes voluntary and involuntary.
How is cardiac muscle similar to stomach smooth muscle?
Cardiac muscle is similar to smooth muscle in that both are involuntary. Cardiac muscle is similar to skeletal muscle because they are both striated.
What type of muscles are elongated?
Elongated muscles are typically skeletal muscles, which are striated and under voluntary control. These muscles are composed of long, cylindrical fibers that facilitate movement by contracting and relaxing. Smooth muscles, found in organs and vessels, can also be elongated but are non-striated and involuntary. Cardiac muscle, while also elongated, is specialized for the heart and is striated and involuntary.
What layer of an artery consists mostly of smooth muscle?
Arterial walls are more muscular than the walls of veins. This muscle is smooth involuntary muscle.
