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What consists if the fibers that surround the medulla.?
cortex
What does the medulla consist of?
The medulla consists of nerve fibers and cell bodies that control vital bodily functions such as heart rate, breathing, and blood pressure. It also contains the reticular formation, which helps regulate consciousness and sleep-wake cycles.
At what level do the majority of nerve fibers cross from the right to the left?
The majority of nerve fibers cross from the right to the left at the level of the medulla oblongata in the brainstem. This crossing, known as decussation, occurs in structures like the pyramids in the medulla.
What stimulates the adrenal medulla to secrete its excitatory hormones?
preganglionic sympathetic fibers releasing acetylcholine that bind to receptors on the adrenal medulla
Does post ganglionic fibers release epinephrine?
No, postganglionic fibers release norepinephrine, not epinephrine. Epinephrine is released by the adrenal medulla.
The nerve fibers that stimulate secretions from cells of the adrenal medulla are best described as?
sympathetic
Why does decussation takes place in brain?
There is considerable variation in the extent to which decussation takes place in the medulla oblongata; about two-thirds or three-fourths of the fibers usually decussate in the medulla oblongata and the remainder in the medulla spinalis.
What fibers surround the xylem tissues?
Fibers made of long, narrow, sclerenchyma cells with thick secondary walls surround the xylem tissue. They provide strength and support to the xylem tissue.
Which grouping consists of connecting of connecting fibers that enable the cell to function as a unit?
Cytoskeleton consists of connecting fibers that enable the cell to function as a unit.
What would surround a bundle of muscle fibers?
EndomysiumendomysiumCovering individual muscle fibers is a thin connective tissue sheath called the endomysium.
Which grouping consists of connecting fibers that enable the cell function as a unit?
Cytoskeleton consists of connecting fibers that enable the cell to function as a unit.
What grouping consists of connecting fibers that enable the cell to function as unit?
Cytoskeleton consists of connecting fibers that enable the cell to function as a unit.
