Chapter 13: Brain and Cranial Nerves

Select all that apply Where does the vagus (X) nerve carries impulses to/from? Select all that apply.

Muscles associated with swallowing Viscera of the abdomen Viscera of the thorax Muscles associated with speech

Select all that apply Identify the cranial nerves that control the muscles that move the eyeball.

Oculomotor Abducens Trochlear

Which cranial nerve functions to sense touch, pain, and temperature on the upper and lower face and to transmit motor impulses needed for chewing?

trigeminal

The epidural space is located between the dura mater and the __________.

vertebrae, bone, bones, or periosteum

The epidural space is located between the dura mater and the ___________ .

vertebrae, bone, bones, or periosteum

Which of the following is the function of the brainstem?

It is a critical center for essential survival reflexes, and even small areas of destruction can be fatal.

The midbrain is directly superior to the ______.

pons

The midbrain is part of the brainstem and is located directly superior to the ________.

pons

Within the brainstem is a network of nerve fibers and associated islands of gray matter which acts to filter incoming signals and to arouse the cerebral cortex. It is not a distinct structure, but is diffusely arranged within the brainstem. This network of fibers is called the _____________ formation.

reticular

Identify the part of the brainstem that is a network of nerve fibers and associated islands of gray matter which acts to filter incoming signals and to arouse the cerebral cortex.

reticular formation

The optic nerve contains only __________ nerve fibers and transmits impulses associated with the sense of ____________ .

sensory ; vision or sight

The olfactory nerve contains only ________ nerve fibers and transmits impulses associated with the sense of ___________.

sensory or afferent ; smell or olfaction

The ______ space is the space called between the arachnoid mater and the pia mater.

subarachnoid

The space associated with the meninges that contains cerebrospinal fluid is the ____________ space.

subarachnoid

The lobe of the cerebrum that receives and integrates information for hearing and smell is the __________ lobe.

temporal

The lobe of the cerebrum that receives and integrates information for hearing and smell is the lobe.

temporal

All sensory neurons except olfactory neurons form their first cerebral synapses in the ______.

thalamus

The major sensory relay center of the brain is the ________.

thalamus

Select all that apply Which of the following sensory pathways would form a synapse in the thalamus? Select all that apply.

Taste Auditory Visual

What is the source(s) of sensory information conveyed via the sensory fibers of the facial nerve?

Taste receptors of anterior tongue

Identify the structure of the brain that functions as the major sensory relay station.

Thalamus

The epidural space is located between what two structures?

The vertebrae and the dura mater

______________ meningeal layer(s) cover(s) the brain and spinal cord.

Three or 3

Describe the function of the olfactory nerve.

Transmits information regarding the sense of smell.

Identify the function of the optic nerve.

Transmits visual information

True or false: The brainstem is responsible for many essential functions, including many reflexes essential for survival.

True

Identify the cranial nerve that is a mixed nerve that carries somatic motor impulses to muscles associated with speech and swallowing, and autonomic fibers transmit impulses to viscera of the thorax and abdomen?

Vagus (X)

The cranial nerve that innervates skeletal muscles of the neck and back is the ______ nerve.

accessory

The cranial nerve that is a primarily motor nerve with two branches: the spinal branch and the cranial branch is the ______ nerve.

accessory

A group of nuclei located within the cerebrum, diencephalon and midbrain that aid in controlling motor functions are ___________ __________.

basal ; nuclei

A group of nuclei located within the cerebrum, diencephalon and midbrain that aid in controlling motor functions are ___________ ___________.

basal ; nuclei

The part of the brain that is important in maintaining posture and equilibrium and is attached to the brainstem posterior to the pons is the ______________ .

cerebellum

The fluid that bathes the brain and spinal cord and provides a protective cushion around the CNS is ___________ fluid.

cerebrospinal or CSF

The part of the brain that controls conscious perception, thought and motor activity is the

cerebrum

Taste receptors of anterior tongue are the source of sensory information conveyed via the sensory fibers of the_______ nerve.

facial

The most inferior portion of the diencephalon is the ________ .

hypothalamus

The part of the diencephalon that is directly involved in regulating thirst, hunger and sex drive behaviors is the __________.

hypothalamus

The portion of the midbrain involved in dealing with auditory pathways is the ______.

inferior colliculus

The hypothalamus is the most ______ portion of the ______.

inferior, diencephalon

Which component of the brainstem contains reflex centers for heart rate, breathing, swallowing and vomiting?

Medulla oblongata

What are the membranes that surround and protect the brain and spinal cord?

Meninges

True or false: The pons is largely responsible for the control of skeletal muscle activity.

False

Click and drag on elements in order Place the parts of the brainstem from most inferior at the top to most superior at the bottom.

1. Medulla oblongata 2. Pons 3. Midbrain

How many divisions does the trigeminal nerve have?

3

Regulation of rapid eye movement during sleep, and respiration are some of the functions of the ______.

pons

What group of nuclei help in controlling motor functions?

Basal nuclei

What part of the brain integrates information about the position of the body's parts and sends out signals that coordinate skeletal muscle movements?

Cerebellum

Select all that apply What are the basic functions of the cerebrum?

Controls thought Controls conscious motor activity Controls conscious perception

What part of the brain regulate fundamental behaviors such as thirst, hunger and reproduction?

Hypothalamus

Which cranial nerve contains only sensory nerve fibers and transmits impulses associated with the sense of smell?

Olfactory nerve

Which type of cranial nerve contains only sensory nerve fibers and transmits impulses associated with the sense of vision?

Optic nerve

Select all that apply Identify the three layers of meninges.

Pia mater Dura mater Arachnoid mater

Select all that apply What are the functions of the temporal lobe? Select all that apply.

Plays a role in memory and abstract thought Receives and integrates auditory input Receives and integrates input for smell

Identify the function of the oculomotor, trochlear and abducens nerves.

Promotes movement of the muscles of the eyeball

Select all that apply What are the functions of cerebrospinal fluid? Select all that apply.

Protects the brain against the shock of rapid head movements Provides nutrients to CNS tissues

Identify the function of the parietal lobe of the cerebrum.

Receives and evaluates general senses (touch, pain,etc.)

What is the function of the occipital lobe?

Receives and integrates visual input

Select all that apply Identify the functions of the oculomotor nerve. Select all that apply.

Regulates the shape of the eye Controls many of the muscles that move the eyeball

Select all that apply What are the functions of the inferior colliculus? Select all that apply.

Signals from the inner ear Auditory signals Visual reflexes

The group of structures within the brain that are important in emotions and memory is called the ____________ system.

limbic

The group of structures in the brain involved with emotions and memory is the ______.

limbic system

The three layers of membrane that surround and protect the brain and spinal cord are called the ____________ .

meninges

The most superior part of the brainstem is the ______.

midbrain

The lobe of the cerebrum that contains the visual centers is the ________ lobe.

occipital

The lobe of the cerebrum that contains the visual centers is the ____________ lobe.

occipital

The cranial nerve that controls many of the muscles that move the eyeball, constricts the pupils and promotes lens accommodation is the _____ nerve.

oculomotor

The cranial nerve that transmits information regarding the sense of smell is the ________ nerve.

olfactory

The cranial nerve that transmits visual information is the ______ nerve.

optic

The lobe of the cerebrum that receives and evaluates general senses (touch, pain, etc.) is the _________ lobe.

parietal