Unit 11 Quiz

Which of the following parts of the nervous system is an example of a control center?

spinal cord

Examples of effectors in the nervous system include:

muscle fibers in the biceps brachii

Outputs of the nervous system may include:

increased heart rate

Examples of receptors in the nervous system include:

cells in the retina of the eye

Inputs (afferent information) to the nervous system may include:

pH of blood

A ______________ is a collection of nerve cell bodies in the peripheral nervous system.

ganglion

______________ plexuses are found on the walls of digestive organs.

Enteric

Alpha motor neurons (α motor neurons) innervate:

skeletal (striated) muscle

In general, motor pathways are _________________ to the central nervous system.

efferent

Which of the following is part of the peripheral nervous system?

sciatic nerve

The central nervous system includes:

brain and spinal cord

In the cerebrum, gray matter is ______ to the white matter.

superficial

This glial cell type forms borders in the central nervous system: the endfeet of this cell type makes up the pia mater and these cells work with the endothelial lining of blood vessels to form the blood-brain barrier.

astrocytes

This type of glial cell is responsible for the immune defense of the brain.

microglia

Astrocytes are to central nervous system as ________________ are to peripheral nervous system.

satellite cells

Myelinated axons in the peripheral nervous system are surrounded by

Schwann cells

_________________ cells support regrowth of cut nerve axons. Oligodendrocytes do not.

Schwann cells

In the spinal cord, the gray matter is ___________ and the white matter is ___________.

deep; superficial

In terms of bony structures, the spinal cord ends and the cauda equina begins at the ___________.

Lumbar spine, somewhere between L2-L4

Which of these structures is formed by cell bodies of autonomic neurons in the thoracic region of the spinal cord?

Lateral horn

A spinal nerve exits the vertebral canal through the:

intervertebral foramen

The structure indicated is the:

parieto-occipital sulcus

The combination of endothelial cells (capillary lining) and astrocyte end-feet found only in the brain is called the:

blood-brain barrier

The function of the pituitary gland is directly controlled by the:

hypothalamus

Most of the body's homeostatic loops are controlled, directly or indirectly, by the:

hypothalamus

What process is the cellular-level event that produces memories?

long-term potentiation

Damage to Broca's area causes:

aphasia (problems with producing speech and other symbolic language)

The neuronal structure shown at "6" is the

axon terminals

neurons typically receive information at the structure marked:

5

The structure shown at “5” is the

dendritic tree

the structure shown at “7” is the

the structure shown at “7” is the

axon

The structure shown at “6”

posterior (dorsal) horn

Which spinal nerve plexus is indicated

Brachial Plexus

the region of the brain indicated by number 6 is the

spinal cord

the region indicated by the number 5 is the

medulla oblongata

the region indicated by “7”

cerebellum

the structure indicated is

medial longitudinal fissure

the structure indicated at 3

central sulcus

structure at “2”

lateral fissure (sulcus)