Module 4 Lecture Exam Questions Flashcards
Which ONE of the following is NOT a part of the peripheral nervous system?
A. Spinal nerves
B. Spinal cord
C. Autonomic sensory nerve fibers
D. Somatic sensory nerve fibers
spinal cord
Myelin is the layered covering of lipid and protein that surrounds dendrites of neurons with the CNS and PNS.
false
Receptors that respond to painful stimuli belong to which ONE of the following categories?
nociceptors
Which ONE of the following nerves is the sixth cranial nerve?
abducens nerve
Which ONE of the following cranial nerves leaves the head and neck region to innervate much of the thoracic and abdominal viscera?
CN X (vagus nerve)
The hippocampus, amygdala, and cingulate gyrus are all considered part of which ONE of the following?
limbic system
The glossopharyngeal nerve supplies:
the tongue and pharynx
What is the smallest part of the brainstem and is responsible for the visual and gustatory response?
midbrain
The parasympathetic nervous system is responsible for the “Fight or flight” response.
false (rest and digest; sympathetic does fight or flight)
Which of the following cranial nerves is not involved with innervation of a muscle that moves the eyeball?
A. Optic nerve
B. Oculomotor nerve
C. Trochlear nerve
D. Abducens nerve
optic nerve
What type of cells are responsible for the myelination of the PNS?
Schwann
The cell body of the neuron is called the:
soma
The arachnoid is the innermost layer of the meninges.
false (middle)
What is the function of the dural sinuses?
drain blood from the brain
A stroke is a situation in which a blood clot blocks the flow of blood to an area of brain tissue.
true
Which of the following is NOT true about Parasympathetic nervous system?
A. Increases digestion
B. Decreases heart rate
C. Decreases urine production
D. Decreases pupil dilation
decreases pupil dilation
What type of reflex involves smooth muscle contraction and cardiac muscle contraction?
autonomic reflexes
The motor fibers exit the spinal cord through:
the ventral root
Which cranial nerve is responsible for hearing and balance?
vestibulocochlear nerve (CN VIII)
The cerebrospinal fluid is secreted from:
choroid plexuses
…………… provides a passage for CSF to flow around the brain and spinal cord.
subarachnoid space
Blood to the brain is supplied by:
vertebral artery
Which lobe is most closely associated with visual processing?
occipital lobe
The cerebellum is separated from the pons and medulla oblongata anteriorly by the:
fourth ventricle
A person who is drunk may have difficulty walking in a straight line because the alcohol has impacted the:
cerebellum
Sound waves that enter the cochlea travel first through the tympanic duct.
false
When the eyes are exposed to a bright light, the pupils contract.
true
The organ of corti is the receptor for:
hearing
The ability of the eye to alter is focusing ability on different objects.
accommodation
A term related to the sense of taste is:
gustatory
Olfactory epithelium is involved in the sense of:
smell
The equilibrium apparatus consists of:
vestibule and semicircular canal
The eustachian tube connects the:
middle ear cavity and throat
What are the receptors for vision?
rods and cones
What is the equilibrium disorder caused by the brain receiving conflicting signals about the environments, both from the eyes and the vestibular organs?
motion sickness
All of the following are a form of lingual papillae EXCEPT:
A. Mallate papillae
B. Vallate papillae
C. Foliate papillae
D. Fungiform papillae
mallate papillae
The ossicle of the ear that is in contact with the tympanic membrane is:
malleus
What is the special sense receptor for hearing?
hair fells of the cochlea
Which of the following order is correct for the olfactory pathway?
1.Olfactory tract
2.Primary olfactory cortex, limbic system, and hypothalamus
3.Olfactory bulb
4.Olfactory nerve
5.Impulse generated in olfactory receptor cells
6.Olfactory nerve fibers
5, 6, 4, 3, 1, 2
Which of the following is NOT considered a special sense?
singing
The layer in the eye that contains the photoreceptors is:
retina
Where are the three bones of the ear found?
middle ear
Which of the following cranial nerves is NOT involved in the gustatory pathway?
A. Facial nerve
B. Vagus nerve
C. Glossopharyngeal nerve
D. Accessory nerve
accessory nerve
What is also known as the blind spot?
optic disk
Which of the following order is correct for the visual pathway?
1.Retina
2.Optic nerve
3.Optic chiasma
4.Optic tracts
5.Lateral geniculate nucleus
6.Optic radiations
7.Primary visual cortex
1, 2, 3, 4, 5, 6, 7
………. allows the footplate of the stapes to transmit the sound vibrations from the middle ear to the inner ear.
oval window
Which of the following muscles is involved in a protective function in the middle ear?
A. Tensor tympani
B. Oblique muscle of auricle
C. Lateral rectus
D. Superior oblique
tensor tympani
The vestibule contains mechanoreceptors called:
maculae
Which of the following example is NOT involved in dynamic equilibrium?
A. Spinning
B. Roller coasters
C. Boat rides
D. Head tilted to the left/right
head tilted to the left/right
The external ear ends at the:
tympanic membrane
