CSCC Exam 3 A&P

Supporting cells found in the CNS and PNS are called neurons.

False

This functional component of the nervous system consists of receptors and sensory nerves.

Sensory Input

The structure of the brain is due to:

Astrocytes

Identify this component of the nervous system serving as the integration center.

Brain

Adult neurons are amitotic and can not divide.

True

This region of the brain stem houses the centers for the visual and auditory reflex.

Midbrain

The midbrain allows for communication between the left and right cerebral hemispheres.

False

Select the last cerebral structure containing CSF as it flows through the CNS.

Fourth Ventricle

Identify the structure in the diencephalon connecting the cerebrum to the brain stem and rest of the body.

Thalamus

This space deep to the dura mater contains bridging veins.

Subdural Space

The occipital lobe of the cerebrum contains the vision areas.

True

Identify the part of the cerebrum where higher order thinking, intellect, and cognition occurs.

Frontal Lobe

This part of the diencephalon houses the pineal gland regulating sleep cycles.

Epithalamus

The most superficial area of the cerebrum.

Cerebral Cortex

Identify the part of the brain responsible for stimulating the cerebrum to keep you conscious.

Reticular Activating System

Select the lobe of the cerebral cortex housing the primary cognitive association area.

Frontal Lobe

Select the lobe of the cerebral cortex housing the primary gustatory (taste) area.

Parietal Lobe

The transverse fissure that separates the occipital lobe from the cerebellum.

True

Identify the portion of the brain stem responsible for autonomic functions like breathing and reflexes like coughing and sneezing.

Medulla Oblongata

Coordination of motor movements, posture, speed, and muscle tone are controlled by this area of the brain.

Cerebral Nuclei (Basal Ganglia)

The Vagus (X) is a mixed nerve: sensory from internal organs in thoraco-abdominal cavities and motor for parasympathetic stimulation of internal organs.

True

This nerve innervates muscles of the shoulder.

Axillary

This "wandering" cranial nerve innervates organs in the thoracic and abdominal cavity.

Vagus

This component of the reflex arc located in the spinal cord or brain stem connects the sensory and motor components.

Integration Center

This disorder is caused by interruption of blood flow to the brain causing sensory, motor and/or cognitive deficits.

Cerebral Vascular Accident

This type of nerve conducts impulses away from the central nervous system to muscle.

Motor

Select the motor tract within the spinal cord directly originating from the cerebral cortex.

Corticospinal

Identify the type of nerve conducting action potentials both to and away from the brain.

Mixed

This nerve controls tongue movement.

Hypoglossal

Identify the myelinated portion of the spinal cord which contains both the ascending and descending tracts.

White Matter

This mixed nerve innervates muscles of facial expression, lacrimal/salivary glands and taste buds in the tongue.

Facial

The major neurotransmitter within synapses and NMJ's of the sympathetic nervous system.

Acetylcholine & Norepinephrine

Identify this component of the nervous system conducting impulses to involuntary (smooth and cardiac) muscle.

b, c & d above

Identify this component of the nervous system conducting impulses to the central nervous system.

Sensory Nervous System

Identify the part of the brain stem housing cardiac and respiration centers needed to keep the body alive.

Medulla Oblongata

The fissure that separates the cerebral hemispheres is the transverse fissure.

False

Identify the structure located in the CNS.

Spinal Cord

Identify the part of the cerebrum where motor speech is located.

Broca's area in frontal lobe

The outer tough connective tissue covering which protects the CNS.

Dura Mater

Identify the part of the brain responsible for emotions.

Limbic System

Identify the structure in the cerebral white matter which connects all lobes in the same hemisphere together.

Corpus Callosum

This neuron is part of the descending tract carrying motor information from the spinal cord to muscle.

Lower Motor Neuron

Select the correct aspect of the sympathetic nervous system.

two of the above

This component of a reflex arc detects internal or external stimuli.

Receptor

Identify the plexus which gives rise to the sciatic nerve innervating the leg.

Sacral

Both the sympathetic and parasympathetic nervous systems can be completely switched on simultaneously.

False

This disorder is caused by trauma resulting in blood pooling outside the cerebral vascular system.

Hematoma

Identify the nerve which arises from the cervical plexus and innervates the diaphragm muscle.

Phrenic

This neuron is part of the ascending tracts carrying sensory information up the spinal cord to the brain.

Second Order Neuron

The only neuroglial cells found outside the CNS.

Schwann Cells

Identify the deep groove separating the cerebral hemispheres.

Longitudinal Fissure

Identify the portion of the brain responsible for balance and coordination.

Cerebellum

This cranial nerve is sensory from the retina of the eye.

Optic

Which portion of the spinal cord is composed entirely of motor neurons?

Ventral Horn

Which portion of the spinal cord contains the synapses between sensory nerves from the body and the spinal cord?

Dorsal Root Ganglion

This component of the reflex arc is responsible for the preprogrammed predictable response.

Effector Organ

Spontaneous depolarization of a portion of the brain resulting in odd sensory input (aura and prodroma) and uncontrolled muscle contraction/relaxation.

Seizure Disorders

Identify the motor tract relaying the signals for posture and balance.

Vestibulospinal

This type of nerve conducts impulses toward the central nervous system.

Sensory & Afferent

This functional component of the nervous system consists of action potentials traveling from brain to muscle.

Motor Output

The circulating fluid directly transporting oxygen and nutrients to the CNS.

Both a & b

Select the lobe of the cerebral cortex housing the auditory area.

Temporal Lobe

Identify the portion of the brain containing the thermostat for temperature regulation, emotion centers, and hunger/satiety centers.

Hypothalamus

These neuroglial cells form myelin sheaths.

both A & B

Identify the smallest diameter structure within the ventricular system of the CNS.

Cerebral Aqueduct

Identify the portion of the brain responsible for cognition, intellect, and consciousness.

Cerebrum

Identify which of the following is part of the CNS.

both A & B

The frontal lobe houses the sense of hearing.

False

Select the correct aspect of the parasympathetic response.

Decreased Bronchiolar Diameter

Identify the most superior 8 spinal nerves.

Cervical

This "wandering" cranial nerve innervates organs in the thoracic and abdominal cavity.

Vagus

Identify the first component of a reflex arc.

Receptor

Identify the part of the brain where the centers for both auditory and visual reflexes are located.

Midbrain

Select the correct aspect of the parasympathetic nervous system.

Craniosacral Origin

This component of a spinal nerve contains only motor neurons.

Ventral Root

Select the correct aspect of the sympathetic response.

Increased Heart Rate

Identify cranial nerve X which is the only one not innervating structures in the head and neck.

Vagus

The decision to move originates in this area of the brain.

Prefrontal Cortex