Test 4 Old questions Flashcards
The structure that contains nuclei that regulates body temperature, water balance, appetite, and GI activity is the:
a) hypothalamus
the diencephalon
a) is the center of abstract thought
b) contains the medulla oblongata
c) consists of the tectum, tegmenjtum, and basis pedunculi
d) controls ventilation rates
e) none of the above**
The location of a pin prick on the bottom of the foot would be located by what structure
post-central gyrus**
The major control systems for balance and posture in the body as well as muscular coordination are located in the:
cerebellum**
The thalamus
integrates almost all afferent information**
Coordination of the movement of the eyes is controlled
by the cerebellum by the hypothalamus by the reticular formation by the inferior colliculi none of the above**
A blow to the back of the head frequently
causes blurred vision**
A mid-sagittal cut would run along
the longitudinal fissure**
The major control systems for balance and posture in the body as well as muscular coordination are located in the
cerebellum**
The myelin sheath of peripheral nerves is broken into segments by the
nodes of ranvier**
Nissl bodies are
rough endoplasmic reticulum*
the capillaries are kept in proper position with the neurons by
astrocytes**
The circle of Willis is derived from what branches from
internal carotid artery**
The neuroglia that form myelin in the CNS and guide the development of neurons in the CNS are
oligodendrocytes
Which of the following is NOT true of neurons?
they are the most abundant cells of nervous tissue**
Cerebrospinal fluid is NOT found circulating in the
brachial plexus**
The two anatomical divisions of the nervous system are
central and peripheral**
Which part of nervous system is responsible for the fight or flight response?
sympathetic nerve system**
Which of the following is not the part of brain stem?
cerebellum**
In the brain map, which of the following matching about location and function is wrong?
postcentral gyrus -> premotor**
Which of the following is NOT a paired cerebral lobe?
the medullary lobe**
The visual area is located in the
occipital lobe**
Neurofilaments
provide structural integrity for the axon**
The area considered to be the site of origin of the higher intellectual activities that are characteristic of humans is known as the
frontal association area**
The great commissural tract of the cerebrum is the
corpus callosum**
The blood brain barrier
is formed from densely packed capillaries and neuroglia cells**
Myelin sheath of CNS is formed from
oligodendrocytes
Depolarization of the axon terminal results in
-A rapid rise in calcium concentration near the neurolemma
-A fusion of the vesicles of neurotransmitter substance with the neurolemma
-An activation of synapsin
=An exocytosis of neurotransmitter in to the synaptic cleft
The corpus callosum
Serves as a connection between the hemispheres
The region of the brain for the abstract thought in humans is know as the
Frontal cortex
The structure that contains nuclei that regulate body temperature, water balance, appetite, and gastro-intestinal activity is the
Hypothalamus
The elevated ridges of the cerebrum are known as
Gyri
The thalamus is the relay center for all sensory input except for
Olfaction
Degeneration of what cells in the basal ganglia results in delayed initiation of movement
Dopaminergic
The source for metabolism in the brain is primarily
Carbohydrates→Glucose
The coordination of eye movement is controlled by the
Superior colliculi
Limbic system
Is the emotional center
Alzheimer’s
- Has the presence amyloid plaques
- Frequently has neurofibrillary tangles within the neurofilaments
- Causes membrane instability within neurons of the brain
- May result in aggressive behavior
Longitudinal fissure
Divides the brain into right and left hemispheres
The cross-extensor reflex
Causes inhibition of the agonist on the contralateral side and facilitation of the antagonist on the contralateral side
The visual area is located in the
Occipital lobe
The myelin sheath of peripheral nerves is broken into segments
Nodes of Ranvier
Nissl bodies are
Rough endoplasmic reticulum
The capillaries are kept in proper position with the neurons by
Astrocytes
The circle of Willis is derived from what branches
Internal carotid artery
Cerebral spinal fluid is formed
Choroid plexus
The precentral gyrus
Has pyramidal cells that control precise motor functions
Broca’s area
is the motor area for speech
The diencephalon includes which of the following structures?
thalamus, hypothalamus, and epithalamiums
The ventricular system is made of the
Lateral ventricles, third ventricle, cerebral aqueduct, and fourth ventricle
The ____ separates the frontal and parietal lobes
Central sulcus
The largest area of the post central gyrus is attributed to the
Face
______ pathways carrey sensory information while ____ pathways carry motor information
Afferent; Efferent
Humans have voluntary control over which branch of the nervous system?
Somatic
At a synapse, the neurotransmitter is released from the ___ membrane
Presynaptic
Menigitis is a condition characterized by inflammation of the meninges. Why can it become life threatening?
The dura mater can rupture
The dorsal root ganglion is a collection of
Sensory neuron cell bodies
Dis-associative drugs impair interaction of thalamus with postcentral gyrus symptoms of these drugs would be manifested with
Inability to locate the source of pain on the body
Damage to the temporal lobe may result in the inability to
Hear
Which compound is primarily responsible for length and depth of sleep cycles?
Melatonin
Which is the correct order of meningeal layers from deep to superficial?
Pia mater, arachnoid mater, dura mater
The blood brain barrier:
Is formed from densely packed endothelial cells
Axonal transport of new proteins travels
Away from the cell body
The startle reflex in response to a large noise to your side is mediated
By the inferior colliculi
Proprioceptive information to the cerebellum
allows the cerebellum to govern the velocity of shortening of a muscle
Nitric oxide
causes vasodilation
Medulla oblongata controls
Vasomotor tone, respiratory rate, vomiting reflex, and heart rate
The reticular formation
Controls level of arousal
Multiple sclerosis is an autoimmune disease that attacks oligodendrocytes. What effect would this have on neuron conduction velocity?
It would decrease
The telencephalon refers to the
Cerebral lobes
A blow to the back of the head frequently
Causes blurred vision
The coordination of neck and head movement for optimized reception of sound is associated with
inferior coliculi
An individual axon will
doesn’t release several types of neurotransmitters
does not make direct contact with the post-synaptic membrane
Does not contain Nissl bodies
and Is depolarized by the neurotransmitter released by the PRE-synaptic terminal
Aging memory loss is associated with
a loss of cholinergic neurons of the hippocampus
A mid-sagital cut would run along
The longitudinal fissure
An inability to recall the answers to the questions on this test may indicate dysfunction of the
Hippocampus
