Spinal Cord Structures Quiz

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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 Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

Anterior horn has the cell bodies of ______ motor neurons

somatic Signup and view all the answers

Each posterior root has a bulge in it called the posterior root ganglion which contains the cell bodies of ______ neurons

sensory Signup and view all the answers

The ______ horn has the cell bodies of autonomic motor neurons

lateral Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

Axons from the spinal nerves, except for T2-T12, form a network called ______

plexuses Signup and view all the answers

After passing through their intervertebral foramen, the spinal nerve divides into several branches called ______

rami Signup and view all the answers

The ______ ramus serves the deep muscles and skin of the posterior surface of the trunk

posterior Signup and view all the answers

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 Signup and view all the answers

Other branches of the spinal cord are the rami communicantes which is a component of the ______ nervous system

autonomic Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

Spinal Cord Structures Quiz

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Anterior horn has the cell bodies of somatic motor neurons. Somatic motor neurons are ______ neurons

Lateral horn has the cell bodies of autonomic motor neurons. Autonomic motor neurons are ______ (regulate activity of cardiac and smooth muscles and glands)

Each posterior root has a bulge in it called the posterior root ganglion which contains the cell bodies of ______ neurons

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

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 ______

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

Anterior horn has the cell bodies of ______ motor neurons

Each posterior root has a bulge in it called the posterior root ganglion which contains the cell bodies of ______ neurons

The ______ horn has the cell bodies of autonomic motor neurons

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

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 ______

Axons from the spinal nerves, except for T2-T12, form a network called ______

After passing through their intervertebral foramen, the spinal nerve divides into several branches called ______

The ______ ramus serves the deep muscles and skin of the posterior surface of the trunk

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

Other branches of the spinal cord are the rami communicantes which is a component of the ______ nervous system

Match the following with their correct description: Anterior horn

Match the following with their correct description: Posterior root ganglion

Match the spinal nerves with their corresponding location: Lumbar nerves

Match the following with their correct function: Autonomic motor neurons

Match the plexuses with their corresponding spinal levels: Brachial plexus

Match the following with their correct structure: Anterior ramus

Match the following with their correct content: Plexuses

Match the nerve roots with their formation: Nerve roots

Match the following with their correct location: Menigeal branch

Match the deep muscles served by posterior ramus with their location: Posterior ramus

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