chapter 13 quiz
Place the meninges from most superficial to deep.
1. Dura mater 2. Arachnoid mater 3. Pia mater
Match the function with the correct nerve.
Abducens (VI) Motor innervation to one eyeball muscle Facial nerve (VII) Movement of facial muscles Vestibulocochlear nerve (VIII) Sense of hearing and balance Glossopharyngeal nerve (IX) Sensory reception from the carotid arteries Vagus nerve (X) Sensory reception from abdominal and thoracic organs Accessory nerve (XI) Innervates sternocleidomastoid and trapezoid muscles Hypoglossal nerve (XII) Innervates intrinsic and extrinsic tongue muscles
Cranial reflexes serve to
All of these choices are correct
The cerebral medulla consists of tracts that connect areas of the cerebral cortex to other areas of the CNS. The associated fibers matched with their function are:
Commissural fibers Connect one cerebral hemisphere to another Projection fibers Connect the cerebrum to other parts of the brain and spinal cord Association fibers Connect areas of the cerebral cortex within the same hemisphere
Longitudinal fissure
Divides the cerebrum into left and right hemispheres
The cerebrum accounts for the smallest portion of total brain weight.
False
The numerous folds, called gyri, serve to decrease the surface area.
False
Match the lobe of the cerebrum with its function.
Frontal lobe Voluntary motor function, aggression, mood. Parietal lobe Receives sensory information other than smell, vision, and hearing. Occipital lobe Receives and integrates visual input. Temporal lobe Memory functions; receives and evaluates input for smell and hearing.
Cerebral cortex
Gray matter on the outer surface of the cerebrum
Sulci
Grooves between the gyri
Match the ventricle with its location.
Lateral ventricles Within each cerebral cavity Third ventricle Center of the diencephalon Fourth ventricle Base of the cerebellum
Match the brain stem component with its location and function.
Medulla Oblongata location Inferior part of the brainstem Midbrain location Superior to the pons Pons location Middle portion of the brainstem Medulla Oblongata example function Heart rate and breathing reflexes Midbrain example function Visual reflex center Pons example function Relays information between cerebrum and cerebellum
True or False: Each of these are components of the brainstem.
Medulla oblongata true Pons true Thalamus false Midbrain true
Match the function with the correct nerve.
Olfactory (I) Sense of smell Optic (II) Sense of vision Occulomotor nerve (III) Innervates four of the six muscles that move the eyeball Trochlear nerve (IV) Innervates one of the six muscles that moves the eyeball Trigeminal nerve (V) Motor innervation to jaw, ear, and throat muscles
Which is not a function of the cerebrospinal fluid?
Provide lubrication between joints
Lateral fissure
Separates the temporal lobe from the rest of the cerebrum
Which is not one of the lobes of the cerebrum?
Superior Lobe
Match the structure of the cerebellum with its description.
Superior peduncle Connects the cerebellum to the midbrain. Middle peduncle Connects the cerebellum to the pons. Inferior peduncle Connects the cerebellum to the medulla oblongata. Arbor vitae White matter of cerebellum Folia Ridges of the cerebellar cortex
Match the part of the diencephalon with its description.
Thalamus Largest part of the diencephalon; the sensory relay center of the brain. Subthalamus Immediately inferior to the thalamus; involved in controlling motor functions Epithalamus Superior and posterior to the thalamus; contains the pineal gland Hypothalamus Most inferior portion of the diencephalon; contains mammillary bodies
Indicate whether each statement is true or false.
The CSF exits the brain through the third ventricle- false The CSF exits the brain through one median aperture and two lateral apertures in the fourth ventricle- true CSF passes back into the dural venous sinuses through arachnoid granulations- true
After suffering a head injury, a patient exhibits weak and uncoordinated movement of the jaw as well as numbness of the tongue and lower gums. Based on these symptoms, predict which nerve might have been damaged.
Trigeminal nerve
The cerebrum accounts for the largest portion of total brain weight.
True
The cerebrum is responsible for conscious thought
True
Cerebral medulla
White matter of the cerebrum
In the cerebrum, the basal nuclei are the __________ nucleus, which is described as having a tail, and the ________ nucleus, which is described as being lens-shaped.
caudate; lentiform
The CSF is produced by specialized epindymal cells in the ventricles in areas called the ___________.
choroid plexuses
The __________ of the cerebellum controls balance and eye movements; the ______________ help control posture, locomotion, and fine motor coordination.
flocconodular lobe; lateral hemispheres and vermis
Blood is supplied to the brain through the ____________, which ascend to the head along the anterior-lateral side of the neck, as well as the _____________, which ascend along the posterior side of the neck.
internal carotid arteries; vertebral arteries
During embryonic development, the series of pouches in the anterior portion of the neural tube form three brain regions in the developing embryo. They are the
midbrain, forebrain, and hindbrain.
During embryonic development, the cephalic portion of the ___________ becomes the brain, and the caudal portion becomes the spinal cord.
neural tube
Within the cranial cavity, the dura mater consists of an outer ___________ layer and an inner _________ layer.
periosteal dura; meningeal
The blood-brain barrier functions to
regulate the movement of materials from the blood to the brain.
The ___________ separates the lateral ventricles, and the _________ allows communication between then third and fourth ventricles.
septa pellucida; cerebral aqueduct
Which is not a function of the limbic system?
speech
Between the dura mater and the arachnoid mater lies the ____________, and between the arachnoid mater and the pia mater lies the ____________.
subdural space; subarachnoid space