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Questions and Answers
Which nerve plexus supplies the head, neck, and diaphragm?
Which nerve plexus supplies the head, neck, and diaphragm?
- Lumbar plexus
- Cervical plexus (correct)
- Brachial plexus
- Sacral plexus
Which nerve arises from the brachial plexus and supplies the deltoid and shoulder?
Which nerve arises from the brachial plexus and supplies the deltoid and shoulder?
- Obturator nerve
- Musculocutaneous nerve
- Axillary nerve (correct)
- Femoral nerve
Which nerve plexus supplies the abdominal wall, external genitalia, and part of the lower limbs?
Which nerve plexus supplies the abdominal wall, external genitalia, and part of the lower limbs?
- Sacral plexus
- Lumbar plexus (correct)
- Cervical plexus
- Brachial plexus
Which nerves arise from the lumbar plexus and supply the flexor muscles of hip joints, extensor of knee, and medial side of leg and foot?
Which nerves arise from the lumbar plexus and supply the flexor muscles of hip joints, extensor of knee, and medial side of leg and foot?
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In a spinal reflex, where does the integration take place?
In a spinal reflex, where does the integration take place?
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Study Notes
Nerve Plexuses and Their Functions
- The cervical plexus supplies the head, neck, and diaphragm.
- The brachial plexus provides the nerve that specifically supplies the deltoid muscle and shoulder region.
Nerve Plexus of the Lower Body
- The lumbar plexus supplies the abdominal wall, external genitalia, and part of the lower limbs.
Nerves from the Lumbar Plexus
- Nerves arising from the lumbar plexus assist in:
- Flexor muscles of hip joints
- Extensors of the knee
- Muscles on the medial side of the leg and foot
Spinal Reflex Integration
- Integration in a spinal reflex occurs in the spinal cord.
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