Ideal gases (not necessarily the same gas) with the following qualities are contained in six cylinders: P = P= P = pressure, V = V= V = volume, and N = N= N = number of molecules. WHY IS IT IMPORTANT? What are the differences between a monosynaptic reflex and a polysynaptic reflex? What are the components of the reflex arc? Why is it important? Receptor (stimulus) Lumbar pairs with the sacral plexus which is the scatic and pudendal. Lumbrosacral Plexus: Makes up the anterior rami of spinal nerves. Consist of Musculocutaneous, median, ulnar, axillary, and radial nerve.

Composed of trunks, divisions, and cords. The phrenic nerve is important.īrachial plexus:Anterior rami nerves C5- T1 make up the brachial plexus innervating the upper limb. Nerve Plexus: segments of spinal cord controlling the neck and limbs distributing different patterns for the ventral ramus.Ĭervical plexus: Located deep on each side of the neck, lateral to the cervical vertebrae, intervating the neck muscles, skin, shoulders, and head.

What are the four nerve plexuses? What is significant about each one (cervical, phrenic, etc.)? Make sure you know the main nerves from each plexus that were mentioned in lecture and what general structures they innervate.