26 Questions
Anterior horn has the cell bodies of somatic motor neurons. Somatic motor neurons are ______ neurons
voluntary
Lateral horn has the cell bodies of autonomic motor neurons. Autonomic motor neurons are ______ (regulate activity of cardiac and smooth muscles and glands)
involuntary
Each posterior root has a bulge in it called the posterior root ganglion which contains the cell bodies of ______ neurons
sensory
Spinal Nerves – 31 pairs of spinal nerves. Cervical nerves – C1 to C8 (8 pairs), Thoracic nerves – T1 to T12 (12 pairs), Lumbar nerves – L1 to L5 (5 pairs), Sacral nerves – S1 to S5 (5 pairs), Coccygeal nerve – Co1 (1 pair). There are a total of ______ pairs of spinal nerves
31
Spinal nerves T1 to L5 exit the vertebral canal below their corresponding vertebrae. After passing through their intervertebral foramen, the spinal nerve divides into several branches called ______
rami
The principal plexuses are: Cervical plexus – C1 to C5, Brachial plexus – C5 to T1, Lumbar plexus – L1 to L4, Sacral plexus – L4 to S4. T2 to T12 do not form plexuses and are known as ______ nerves
intercostal
Anterior horn has the cell bodies of ______ motor neurons
somatic
Each posterior root has a bulge in it called the posterior root ganglion which contains the cell bodies of ______ neurons
sensory
The ______ horn has the cell bodies of autonomic motor neurons
lateral
Spinal Nerves – 31 pairs of spinal nerves. Cervical nerves – C1 to C8 (8 pairs), Thoracic nerves – T1 to T12 (12 pairs), Lumbar nerves – L1 to L5 (5 pairs), Sacral nerves – S1 to S5 (5 pairs), Coccygeal nerve – Co1 (1 pair). There are a total of ______ pairs of spinal nerves
31
Spinal nerves T1 to L5 exit the vertebral canal below their corresponding vertebrae. After passing through their intervertebral foramen, the spinal nerve divides into several branches called ______
rami
Axons from the spinal nerves, except for T2-T12, form a network called ______
plexuses
After passing through their intervertebral foramen, the spinal nerve divides into several branches called ______
rami
The ______ ramus serves the deep muscles and skin of the posterior surface of the trunk
posterior
The ______ ramus serves the muscles and structures of the upper and lower limbs and the skin of the lateral and anterior surfaces of the trunk
anterior
Other branches of the spinal cord are the rami communicantes which is a component of the ______ nervous system
autonomic
Match the following with their correct description: Anterior horn
Cell bodies of somatic motor neurons = Voluntary neurons Cell bodies of autonomic motor neurons = Involuntary neurons Receives information via axon terminals of sensory neurons = Nerve roots Contains axons of motor neurons = Information flows out the front of the spinal cord
Match the following with their correct description: Posterior root ganglion
Contains the cell bodies of sensory neurons = Posterior root Contains the cell bodies of motor neurons = Anterior root Serves deep muscles and skin of the posterior trunk = Posterior ramus Serves muscles and structures of upper and lower limbs = Anterior ramus
Match the spinal nerves with their corresponding location: Lumbar nerves
L1 to L5 = Exit below corresponding vertebrae T1 to T12 = Exit above corresponding vertebrae C1 to C8 = Exit above corresponding vertebrae S1 to S5 = Exit below corresponding vertebrae
Match the following with their correct function: Autonomic motor neurons
Regulate activity of cardiac and smooth muscles and glands = Lateral horn Sensory neurons conducting nerve impulses = Posterior horn Serve deep muscles and skin of posterior trunk = Posterior ramus Supply vertebrae, vertebral ligaments, and blood vessels = Meningeal branch
Match the plexuses with their corresponding spinal levels: Brachial plexus
C5 to T1 = Major nerves rearranged C1 to C5 = Component of autonomic nervous system L4 to S4 = Known as intercostal nerves L1 to L4 = Formed by axons from spinal nerves
Match the following with their correct structure: Anterior ramus
Divides into several branches called rami = Spinal nerve Major nerves rearranged into plexuses = Plexuses Component of autonomic nervous system = Rami communicantes Known as intercostal nerves = T2 to T12
Match the following with their correct content: Plexuses
Network formed by axons from spinal nerves, except T2-T12 = Other branches of spinal cord Cervical plexus - C1 to C5, Brachial plexus - C5 to T1, Lumbar plexus - L1 to L4, Sacral plexus - L4 to S4 = Principal plexuses Serve muscles and structures of upper and lower limbs and skin of lateral and anterior trunk surfaces = Anterior ramus Axons from spinal nerves, except T2-T12, form a network called plexuses = T2 to T12
Match the nerve roots with their formation: Nerve roots
Form when two rootlets merge together = Associated with spinal cord Exit above their corresponding vertebrae = Cervical nerves Contain axons of motor neurons flowing out from spinal cord front = Anterior root Contain only sensory axons conducting nerve impulses in from posterior root = Posterior root
Match the following with their correct location: Menigeal branch
Supplies vertebrae, vertebral ligaments, blood vessels of spinal cord and meninges = Spinal nerves Serve deep muscles and skin of posterior trunk = Posterior ramus Major nerves rearranged into plexuses = Plexuses Component of autonomic nervous system = Rami communicantes
Match the deep muscles served by posterior ramus with their location: Posterior ramus
Serves deep muscles and skin of posterior trunk = Back muscles Serve muscles and structures of upper and lower limbs = Upper and lower limbs Serves deep muscles and skin beneath anterior surface = Abdominal muscles Serve lateral side of body's structure = Lateral surface muscles
Test your knowledge on the structures of the spinal cord, including the anterior horn, lateral horn, posterior horn, and nerve roots. Learn about the functions and characteristics of somatic motor neurons, autonomic motor neurons, and sensory neurons.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
