These structures extending from the pia mater through to the dura mater support the spinal cord by preventing lateral movement.

1. coccygeal ligament
2. denticulate ligaments
3. spinal ligaments
4. cauda equina
5. rami communicants

denticulate ligaments

Bill contracts a viral disease that destroys cells in the posterior gray horns in his spinal cord. As a result, which of the following would you expect?

1. problems moving his legs
2. uncontrollable sweating of his feet
3. problems with moving his arms
4. loss of sensation in his torso
5. inability to breathe

loss of sensation in his torso

The adult spinal cord typically ends between vertebrae

L1-L2

Ascending and descending tracts can be found in which area(s) of the spinal cord?

1, 2, 3

Damage to which structure would lead to paralysis of limbs?

2

Which of the following is not true regarding an epidural block?

1. This procedure does not provide sustained anesthesia
2. it is commonly used as a method of pain control during labor and delivery
3. it can provide sensory and motor anesthesia, depending on the anesthetic selected
4. intubation is not necessary because reparatory muscles are not paralyze
5. it affects only the spinal nerves in the immediate area of the injection

This procedure does not provide sustained anesthesia

Suppose that you fell something brushing against your abdomen. The sensory information would be carried to the spinal cord over a(n) _____ ramus.

1. posterior
2. ascending
3. anterior
4. lateral
5. sympathetic

anterior

Sensory information from visceral organs is carried by the

1. rami communicantes
2. parasympathic nerve
3. posterior ramus
4. anterior ramus
5. sympathetic nerve

sympathetic nerve

The _____ innervates the ventrolateral body surface, structures in the body wall, and the limbs

1. gray rami communicantes
2. white rami communicantes
3. posterior rami
4. anterior rami
5. dermatomes

anterior rami

Nerve tracts or fasciculi make up the

1. gray commissures
2. central canal
3. anterior gray horns
4. posterior gray horns
5. white columns

white columns

A motor neuron typically receives input from neurons that originate in various areas of the brain. This type of circuit is a

1. convergent circuit
2. parallel processing circuit
3. serial processing circuit
4. reverberating circuit
5. divergent circuit

convergent circuit

Large bundles of axons from several spinal nerves in the brachial plexus are termed

1. dermatomes
2. trunks
3. cords
4. rami
5. roots

trunks