- The phrenic nerve is derived from the cervical plexus and receives innervation from the C3, C4, and C5 nerve roots. It is the longest branch of the cervical plexus.
Why does phrenic nerve supply diaphragm?
- The C3-C5 spinal nerves in the neck give rise to the phrenic nerve, a mixed motor and sensory nerve.
- The diaphragm, the main muscle of respiration, is exclusively controlled by the nerve, making it essential for breathing.
What organ does this nerve supply?.
- The jejunum receives both intrinsic and extrinsic nerve supply.
- The preganglionic parasympathetic and postganglionic sympathetic branches of the celiac plexus provide the autonomic extrinsic supply.
- These neurons go via branches of the major vessels from the mesentery into the jejunum.
What are the 4 types of nerves?
It is conventional, however, to describe nerve types on the basis of their function: motor, sensory, autonomic or cranial.
- Motor Nerves.
- Sensory Nerves.
- Autonomic Nerves.
- Cranial Nerves.
Learn more about phrenic nerve
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Schema, assimilation and accommodation
Explanation
Schema, assimilation and accommodation are three important concepts in Piaget’s cognitive development which the kids adapt to learn and understand their world.
Schema is the mental or cognitive idea, concept or framework which organizes and interprets information. Schema is built continuously during cognitive development of children through the interweaving of the adaptation processes of assimilation and accommodation.
Assimilation helps a kid to take new information and add it to the existing schema or old information about the same concept. For ex., identifying a four-legged animal as a cow by a kid is assimilation of a new information.
Accommodation helps a kid to analyze and modify the new or old schema or information based on what is learnt or experienced. For ex., Identifying that all four-legged animals are not cow and they can be a horse or bullock also depending upon the difference in their structure is the accommodation made by the kid on top of existing schema of four-legged animals.
Answer:
1 When light hits the retina (a light-sensitive layer of tissue at the back of the eye), special cells called photo receptors turn the light into electrical signals.
These electrical signals travel from the retina through the optic nerve to the brain. Then the brain turns the signals into the images you see.Focal vision is involved in examining and recognizing objects related with the macular area of the retina whereas peripheral vision is vision resulting in stimulation of the retina outside the macula. An example of peripheral vision would be looking straight ahead while also being able to see on the side by the eye.
Explanation:
2The pituitary gland is enveloped by dura and sits within the sella turcica of the sphenoid bone. The sella turcica is a saddle-shaped depression that surrounds the inferior, anterior, and posterior aspects of the pituitary.When a pituitary tumor pushes the optic chiasm, it causes visual loss in both eyes. In addition to the optic nerve, which brings vision from the eye to the brain, there are also several other nerves near the pituitary gland that travel to the eyes and help them move normally.
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Answer:
d.body mass index
Explanation:
because greg is calculate his height and weight
Answer:
20 mEq/L Potassium Chloride in 0.45% Sodium Chloride Injection, USP 1000 5.5 (3.5 to 6.5)
