14. Identify specifically each of the vertebra types shown...

14. Identify specifically each of the vertebra types shown in the diagrams below. Also identify and label the following markings on each transverse processes, spinous process, body, superior articular processes. (a) (b) 15. Describe how a spinal nerve exits from the vertebral column. 16. Name two factors/structures that permit Bexibility of the vertebral columa 17. What kind of tissue composes the intervertebral discs?. 18. What is a herniated disc? What problems might it cause? 19. Which two spinal curvatures are obvious at binh?. and Under what conditions do the secondary curvatures develop? and

Transcript

00:01 Hello students, here we are being asked various questions and the first question is what are cervical end number enlargements? coming to the cervical enlargements, it is the spinal cord expansion that corresponds to the arms is called the cervical enlargement enlargements and this includes the spinal segments c5 to t1.

00:40 The expansion that corresponds to the legs is called the lumbar enlargements.

00:49 So spinal cord expansion corresponding to legs is known as lumbar enlargements and includes spinal segments from l2 to s3.

01:00 Another question is what is conus medullaris? it is the terminal end of the spinal cord which typically occurs at l1 vertebral level in the average adult.

01:24 Another question is what is phylum terminal? it is the fibrous band that connects the conus medullaris to the posterior body of the caucasus.

01:54 Another question asked is what is cauda equina? it is a group of nerves and nerve roots stemming from the distal end of the spinal cord typically levels l1 l5 and contains axons of nerves that give both motor and sensory innervation to the legs, bladder, anus and perineum.

02:34 Another question asked is what is spinal nerve plexus? as you know that plexus refers to the web of nerves that is created just lateral to where t12 to l5 exit of spinal cord via intervertebral foramina and plexus exists bilaterally and allows nerves to combine at different levels to create multiple functioning nerves that serve to innervate various structures.

03:25 Another question asked is what are intercostal nerves? these are the nerves which are part of somatic nervous system and they aid in the contraction of muscles and the return of sensory information from the skin and parietal lubra...

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