Podcast
Questions and Answers
What is the main function of spinal nerves?
What is the main function of spinal nerves?
- Connecting the CNS to sensory receptors, muscles, and glands (correct)
- Connecting muscles to the brain
- Connecting the CNS to the brain
- Connecting sensory receptors to the brain
How many pairs of spinal nerves are there?
How many pairs of spinal nerves are there?
- 32 pairs
- 30 pairs
- 31 pairs (correct)
- 28 pairs
Where does the spinal cord end in relation to the vertebrae?
Where does the spinal cord end in relation to the vertebrae?
- Near the level of the first lumbar vertebra
- Near the level of the second lumbar vertebra (correct)
- Near the level of the fourth lumbar vertebra
- Near the level of the third lumbar vertebra
What is the arrangement called where the roots of the lumbar, sacral, and coccygeal nerves descend at an angle to reach their respective foramina before emerging from the vertebral column?
What is the arrangement called where the roots of the lumbar, sacral, and coccygeal nerves descend at an angle to reach their respective foramina before emerging from the vertebral column?
What is the distribution of nerves that plexus identifies?
What is the distribution of nerves that plexus identifies?
What are spinal nerves wrapped in?
What are spinal nerves wrapped in?
Where do most of the spinal nerves emerge from the spinal cord?
Where do most of the spinal nerves emerge from the spinal cord?
Which nerve exits the vertebral canal between vertebrae C7 and T1?
Which nerve exits the vertebral canal between vertebrae C7 and T1?
What does a typical spinal nerve consist of?
What does a typical spinal nerve consist of?
What do axons from the anterior rami of spinal nerves form?
What do axons from the anterior rami of spinal nerves form?
Which plexus supplies the skin and muscles of the head, neck, and superior part of the shoulders and chest?
Which plexus supplies the skin and muscles of the head, neck, and superior part of the shoulders and chest?
From which nerves do the phrenic nerves arise?
From which nerves do the phrenic nerves arise?
Where does the coccygeal plexus emerge from?
Where does the coccygeal plexus emerge from?
From which cervical nerves is the cervical plexus formed?
From which cervical nerves is the cervical plexus formed?
How many pairs of anterior and posterior sacral foramina do spinal nerves S1-S4 exit through?
How many pairs of anterior and posterior sacral foramina do spinal nerves S1-S4 exit through?
What is the clinical significance of dermatomes?
What is the clinical significance of dermatomes?
What is the function of the cauda equina?
What is the function of the cauda equina?
What do spinal nerves connect?
What do spinal nerves connect?
What are spinal nerves wrapped in?
What are spinal nerves wrapped in?
Where does the spinal cord end in relation to the vertebral column?
Where does the spinal cord end in relation to the vertebral column?
What is the distribution of nerves of the spinal plexuses?
What is the distribution of nerves of the spinal plexuses?
Which spinal nerves emerge from the spinal cord through the intervertebral foramina between adjoining vertebrae?
Which spinal nerves emerge from the spinal cord through the intervertebral foramina between adjoining vertebrae?
Where do the roots of the sacral spinal nerves and the coccygeal spinal nerves enter from the spinal cord?
Where do the roots of the sacral spinal nerves and the coccygeal spinal nerves enter from the spinal cord?
Which nerve supplies motor fibers to the diaphragm?
Which nerve supplies motor fibers to the diaphragm?
Which pairs of anterior and posterior sacral foramina do spinal nerves S1–S4 exit via?
Which pairs of anterior and posterior sacral foramina do spinal nerves S1–S4 exit via?
What do axons from the anterior rami of spinal nerves form?
What do axons from the anterior rami of spinal nerves form?
From which cervical nerves is the cervical plexus formed?
From which cervical nerves is the cervical plexus formed?
Where does a typical spinal nerve unite to form a spinal nerve?
Where does a typical spinal nerve unite to form a spinal nerve?
Which part of the vertebral canal do spinal nerves T1–L5 exit below?
Which part of the vertebral canal do spinal nerves T1–L5 exit below?
What do axons from the anterior rami of adjacent nerves form?
What do axons from the anterior rami of adjacent nerves form?