The spine Flashcards
In the spine, what are sacral nerves used for?
Motor and sensory function
Where do sacral nerves come out in the spine?
The conus
What are spinal tracts?
Ascending and descending pathways that carry information up and down the spine
What tract carries information down to the muscles?
Corticospinal tract
What tract carries information from the body to the brain?
Spinothalamic tract
What is the role of the peripheral motor nerve?
Directs reflexes from the spinal cord
What senses does the dorsal column carry to the brain?
Fine touch and proprioception
What senses does the spinothalamic tract carry?
Pain and temperature
How many vertebrae are in the spine?
33
What are the cervical vertebrae?
Support the weight of the head, nerves labelled C1-C7
What are the thoracic vertebrae?
Hold the rib cage and protect the heart and lungs
What are the lumbar vertebrae?
Bear the weight of the body
What are the sacrum vertebrae?
Connect the spine to the hip bones
What are the cockyx?
Provide attachment for ligaments and muscles on the pelvic floor
What are intervertebral discs?
Between each vertebra, are used to stop vertebrae from rubbing together