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What spinal nerves form a plexus?
The cervical spinal nerves form the cervical plexus, the brachial spinal nerves form the brachial plexus, the lumbar and sacral spinal nerves form the lumbosacral plexus, and the sacral spinal nerves form the sacral plexus.
What passes through The transverse foramina and cervical vertebrae?
The vertebral artery passes through the transverse foramina of the cervical vertebrae. These arteries supply blood to the brain and spinal cord.
Which spinal nerves go directly to the tissues they supply rather than forming a plexus?
The thoracic spinal nerves (T1-T12) do not form plexuses like the cervical, brachial, lumbar, and sacral nerves. Instead, each thoracic spinal nerve tends to go directly to the tissues it supplies without forming complex networks.
What is the center of the osteon called?
It's called the Central Canal. The Central Canal contains Nerves and Blood Vessels.
Part of tooth supply and contain nerves and blood cells?
The pulp is the innermost layer of the tooth that contains nerves, blood vessels, and connective tissue. It is responsible for providing nourishment to the tooth and transmitting sensory information. If the pulp becomes infected or damaged, a root canal treatment may be necessary to save the tooth.
What spinal nerves form a plexus?
The cervical spinal nerves form the cervical plexus, the brachial spinal nerves form the brachial plexus, the lumbar and sacral spinal nerves form the lumbosacral plexus, and the sacral spinal nerves form the sacral plexus.
What two regions is the spinal cord enlarged?
the spinal cord is enlarged at the region from where the plexus originate so it is enlarged at the cervical from where the roots for brachial plexus originates the and thoracolumbar level where the cauda equina originates
What is the nerve supply to the levator scapula?
The nerve supply to the levator scapula muscle is from the dorsal scapular nerve (C5) and the third and fourth cervical nerves (C3, C4) that form the cervical plexus.
Part of tooth that contains a rich supply of nerves and blood vessels?
pulp
What is the significance of the spinal cord enlargement?
There are two the cervical and the lumbar. They are enlarged because the cervical gives rise to nerves in the upper limbs and lumbar in the lower limbs thus they have more nerves running to and from which accounts for the enlargements.
What part of the nail contains nerve and blood supply?
the nail bed
What passes through The transverse foramina and cervical vertebrae?
The vertebral artery passes through the transverse foramina of the cervical vertebrae. These arteries supply blood to the brain and spinal cord.
Which spinal nerves go directly to the tissues they supply rather than forming a plexus?
The thoracic spinal nerves (T1-T12) do not form plexuses like the cervical, brachial, lumbar, and sacral nerves. Instead, each thoracic spinal nerve tends to go directly to the tissues it supplies without forming complex networks.
What is the center of the osteon called?
It's called the Central Canal. The Central Canal contains Nerves and Blood Vessels.
What are the benefit of having the nerve supply of the diaphragm which is located in the thoracolumbar area of the spinal cord arise from cervical nerves?
Perhaps it is for protection, since an injury of the thoracolumbar area could cause death, but since the nerve arises from the cervical area and enters the thorax and then goes to the diaphragm, it stands a lesser chance of being injured.
Part of tooth supply and contain nerves and blood cells?
The pulp is the innermost layer of the tooth that contains nerves, blood vessels, and connective tissue. It is responsible for providing nourishment to the tooth and transmitting sensory information. If the pulp becomes infected or damaged, a root canal treatment may be necessary to save the tooth.
Which nerves supply sympathetic fibres to the heart?
Sympathetic fibers to the heart are primarily supplied by the cardiac branches of the sympathetic trunk, which originate from the cervical and upper thoracic spinal segments (T1-T5). Specifically, the superior, middle, and inferior cardiac nerves arise from the cervical sympathetic ganglia and provide sympathetic innervation to the heart, influencing heart rate and contractility. These fibers release norepinephrine, which enhances cardiac output during times of stress or increased activity.
