the spinal nerve associated with innervation of the diaphragm is the...

Question

BlackTom AI · Accepted Answer

Question restatement: Which spinal nerve is associated with innervation of the diaphragm?

Option 1: sciatic nerve. This nerve is primarily a lower limb nerve arising from the lumbosacral plexus and does not innervate the diaphragm. Its functions relate to the posterior thigh and leg, not breathing mechanics.

Option 2: phrenic nerve. The phrenic nerve is the key somatic motor and sensory nerve for the diaphragm, typically arising from cervical spinal roots C3–C5, and it provides the sole motor innervation to the diaphragm as well as sensory fibers to its central portion. This directly aligns with diaphragmatic innervation.

Option 3: ulnar nerve. The ulnar nerve travels from the medial cord of the brachial plexus and supplies motor and sensory innervation to parts of the forearm and hand. It has no role in diaphragmatic or respiratory muscle innervation.

Option 4: obturator nerve. The obturator nerve also derives from the lumbar plexus and primarily innervates the medial thigh muscles and skin. It does not innervate the diaphragm or participate in respiration.

Option 5: mediastinum nerve. There is no standard nerve named the 'mediastinum nerve' in anatomy; this option does not correspond to a recognized spinal nerve or neural pathway associated with diaphragmatic innervation.

Putting the pieces together, the diaphragm’s main neural control is provided by the phrenic nerve, while the other listed nerves have unrelated regional innervation and functions. The incorrect options either pertain to other regions (limbs or chest wall) or include an nonstandard/incorrect term, making them unsuitable as the diaphragmatic nerve.

the spinal nerve associated with innervation of the diaphragm is the...单项选择题

类似问题

Leo was in an accident while riding his motorcycle. He now needs a ventilator to breathe because his spinal cord damage is above C3. Which nerve, important to respiration, is not functioning properly?

Question at position 1 The nerve that innervates the prime mover for inspiration is the _____.Thoracic nervePhrenic nerveMedial nerveSpinal nerveAccessory nerveIntercostal nerve

Question at position 1 The nerve that innervates the prime mover for inspiration is the _____.Phrenic nerveIntercostal nerveAccessory nerveMedial nerveSpinal nerveThoracic nerve

Question at position 1 The nerve that innervates the prime mover for inspiration is the _____.Medial nerveSpinal nervePhrenic nerveThoracic nerveAccessory nerveIntercostal nerve

The ____________________ nerve is responsible for innervation of the diaphragm.

Name the Supreme Court decision that removed financial constraints on PACs.

Political scientists Joshua Kalla and David Broockman find that senior policy makers made themselves available to _____ between three and four times more often than they did to constituents.

Name the political scientist who argues that parties are designed to serve the needs of ambitious politicians (namely candidates and officeholders).

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单