Chapter 13

Place the following events in order for the flow of CSF. Start with the lateral ventricles.

1 CSF from the lateral ventricles through the interventricular foramen into the third ventricle 2 CSF from the third ventricle enters the cerebral aqueduct 3 Fluid from the fourth ventricle exits into the subarachnoid space 4 CSF is reabsorbed through the arachnoid granulations

Match terms

A frontal lobe B central sulcus C parietal lobe D lateral fissure E occipital lobe F cerebellum

Which cranial nerve is indicated in the image innervating the lateral rectus of the eye

Abducens

Muscles that move the eyeball

Abducens, oculomotor, trochlear

Which cranial nerve is indicated by the letter A in the illustration?

Accessory

What are the functions of the midbrain?

Aids in unconscious regulation, and coordination of motor activities Reflex movements of the head, eyes and body towards visual, auditory or tactile stimuli Involved in maintaining muscle tone and coordinating movements

The area of the brain called the diencephalon is between the ________ and cerebrum

Brainstem

Match the structures associated with the brain with their correct letters, based on the image provided

C. Longitudinal fissure D occipital lobe E parietal lobe F. Frontal lobe.

The part of the brain that is important in maintaining posture in equilibrium, and it's attached to the brain stem posterior to the pons is the

Cerebellum

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

Cerebellum

The largest Commissure of the brain that connects, the right and left cerebral hemispheres is the

Corpus callosum

Correctly identify the cranial nerve marked on the image by the letter A

Facial

Correctly, identify the cranial nerve marked on the image by the letter A

Facial

Cranial Nerve VII is the_______ nerve

Facial

True or false The portion of the diencephalon immediately inferior to the thalamus, which contains ascending and descending tracts, and the subthalamic nuclei is the hypothalamus

False

What cranial nerve along with its branches is indicated by the letter A in the image?

Glossopharyngeal

What number is associated with the optic cranial nerve?

II

What number is associated with the oculomotor cranial nerve?

III

What structure connects each lateral ventricle to the third ventricle?

Interventricular foramen

The fissure or sulcus that separates the temporal lobe from the rest of the cerebrum is the______ fissure

Lateral

The structure that separates the right and left hemispheres of the cerebrum is the

Longitudinal fissure

What part of the brain cell that contains the cardiac center, vasomotor center, and respiratory center?

Medulla oblongata

Identify the components of the brain stem

Medulla oblongata Mid brain Pons

The three layers of membrane that surrounds and protects the brain and spinal cord are called

Meninges

What structure has functions that include controlling visual and auditory reflects movements of the head, eyes and body and maintaining muscle tone?

Midbrain

The superior middle and inferior cerebellar_________ connect the cerebellum to the brainstem allowing communication between the cerebellum and other parts of the CNS.

Peduncles

The area of brainstem just superior to the medulla oblongata, that forms a prominent bulge of the anterior aspect of the brainstem is the

Pons

Function of the oculomotor, Trochlear and abducens nerve

Promotes movement of the muscles of the eyeball

what are the functions of the cerebrospinal fluid?

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

Within the brainstem is a network of nerve fibers and associated islands of green matter which ax 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

Reticular formation

central sulcus

Separates frontal lobe from parietal lobe

The small nucleus located immediately beneath the thalamus, contains both ascending and descending tracts and is involved with the basal nuclei in regulating motor function is the

Subthalamus

The small nucleus located immediately beneath the thalamus, contains both ascending and descending tracts, and is involved with the basal nuclei in regulating motor function is the

Subthalamus

The Dura Mater extends between the cerebrum and cerebellum, forming the

Tentorium cerebelli

What large cranial nerve is indicated in this picture?

Trigeminal

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

Trigeminal

What cranial nerve is designated by the number IV?

Trochlear

True or false the thalamus constitutes the largest portion of the diencephalon

True

What number is assigned to the vestibulocochlear nerve?

VIII

Reflexes involved in maintaining homeostasis may involve the ______ nerve

Vagus

What cranial nerve is associated with the ear and indicated in the image and letter A?

Vestibulocochlear

Cranial nerve number VI is a somatic motor nerve called the

abducens

Fibers, connecting areas of the cerebral cortex within the same hemisphere are _____ fibers

association

A group of functionally related nuclei within the cerebrum, diencephalon and midbrain are

basal nuclei

The specialized capillaries within the brain that are covered with astrocyte foot-like processes that filter plasma before it enters the neural tissue is called the

blood brain barrier

What part of the brain consists of two hemispheres connected by a vermis?

cerebellum

The third ventricle is connected to the fourth ventricle through the

cerebral aqueduct

the fluid that bathes the brain and provides cushion

cerebrospinal (CSF)

Ventricles of the brain contain _____.

cerebrospinal fluid (CSF)

association fibers

connect different parts of the same hemisphere

commissural fibers

connect one hemisphere to the other

Nerves designated by Roman numerals and by names that indicate their primary functions and/or the general distribution of the their fibers are

cranial nerves

Identify the three layers of meninges

dura mater, arachnoid mater, pia mater

Indicate the correct order of meninges from superficial at the top to deep at the bottom

dura mater, arachnoid mater, pia mater

The olfactory bulb is located superior to the cribriform plate of the

ethmoid bone

What structure is formed when the Dura Mater extends down into the longitudinal fissure, and separates the right and left cerebral hemispheres?

falx cerebri

Which ventricle is continuous with the central canal of the spinal cord and has openings leading to the subarachnoid space?

fourth ventricle

Cranial nerve IX

glossopharyngeal nerve

Identify the type of matter forms the cerebral cortex

gray matter

The cerebral cortex is a thin layer of

gray matter

Cranial nerve XII

hypoglossal nerve

Most inferior portion of the diencephalon is the

hypothalamus

The hypothalamus is the most ______ portion of the _______

inferior; diencephalon

blood vessels that supply blood to the brain

internal carotid arteries and vertebral arteries

The interventricular foramina connects third and ______ ventricles

lateral

What are the three major regions of the cerebellum?

lateral hemispheres, flocculonodular lobe, vermis

The septum pellucidum separates the ______.

lateral ventricles

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

limbic system

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

meninges

What cranial nerve is indicated in the image?

oculomotor

What is the cranial nerve that is indicated by the letter A in the image?

olfactory

What is the cranial nerve that is indicated in the image at letter A?

optic

What structures connect the cerebellum to the brainstem and allow communication between the cerebellum and other parts of the CNS?

peduncles

Identify the structures that are part of the epithalamus

pineal gland and habenula

precentral gyrus

primary motor cortex

postcentral gyrus

primary somatosensory cortex

What are the gyro of the cerebrum?

ridges of tissue

What is the thin membrane separating the lateral ventricles?

septum pellucidum

Shallow grooves found all over the surface of the cerebrum are called

sulci

The grooves between the raised areas on the surface of the cerebrum are called

sulci

The ______ lobe is separated from the rest of the cerebrum by the lateral fissure.

temporal

What structure is formed when the dura mater extends between the cerebrum and cerebellum?

tentorium cerebelli

What is the largest portion of the diencephalon and consists of two clusters of nuclei connected in the midline by an intermediate mass?

thalamus

How many divisions does the trigeminal nerve have?

three

The cranial nerve that is designated by the number V

trigeminal

What is the cranial nerve that is shown in the image?

trochlear

The cavities in the brain that store cerebrospinal fluid are the ______.

ventricles

projection fibers (white matter)

vertical; connect hemispheres with lower brain or spinal cord