T/F Flashcards
The skeletal system is responsible for the synthesis of Vitamin D
FALSE, L1, S16
Evolutionary change can never be the result of instruction and learning
FALSE, lecture 1 slide 38
Homeostasis is a process by which the body maintains a relatively stable internal condition, in a continuously stable external environment
FALSE, first part is correct but the second part should be continuously changing external environment. L1, 25
A disease state can be the result of a specific homeostatic imbalance
True, L1 26
The Nervous System distinct systemic function and purpose is the ongoing adjustment and accommodation of the organism to its changing external environment
TRUE
The Blood-Brain Barrier is a mechanism responsible for the protection of the brain from many toxic substances
TRUE
The subarachnoid space is filled with cerebro-spinal fluid.
TRUE, L2 15
The cauda equina is a collection of autonomic nervous system nerves found in the sacral region
TRUE, L4 3 states that it is at the inferior end of vertebral canal
The parasympathetic division of the ANS is also called the thoracico-lumbar Division
FALSE
Neuroplasticity is one of the most important products of body/environment interactions
TRUE, L1 8
Autonomic Nervous System post-ganglionic axons are not myelinated.
TRUE, L4 23
Perspiration is produced by parasympathetic stimulation
FALSE, produced by sympathetic NS stimulation, L4 24
Under sympathetic influence, the kidneys reduce urine output
TRUE
Large protein “floaters” in the cellular membrane are responsible for most of its special functions
TRUE, L 3 8
Cellular membranes are hydrophilic, a characteristic that renders the membrane highly permeable to water-soluble substances
FALSE, they are hydrophobic
Glial cells are estimated to outnumber neurons by 10 to 1.
FALSE, this was the old understanding
The myelin sheath of long axons in the Peripheral Nervous System is the responsibility of Schwann cells
TRUE, Alex’s lecture 3 notes
The neuronal conduction of myelinated axons is faster than in axons without this sheath.
TRUE
Synthesis of neurotransmitters mostly occurs in the neuronal soma.
TRUE, L3 32
The ability of a neuron to respond to stimuli by converting it to into a nerve impulse is called Conductivity.
FALSE, this is irritability, L3 22
The size of the pupils is controlled by the extrinsic muscles of the eyes.
FALSE, intrinsic muscles
Most homeostatic processes rely on Positive Feedback Mechanisms.
FALSE, negative feedback loops more common, L1 26
Temperature and pain are sensed by Ruffini endings.
FALSE, think that this is a free nerve ending, L5 6
The neurotransmitter used by the parasympathetic division of the ANS is norepinephrine
FALSE, it is acetylcholine, L 4 21
The sympathetic division of the ANS utilizes both norepinephrine and acetylcholine
TRUE
The sympathetic division of the ANS is also called the thoracico-lumber division -
TRUE. Unsure about this one but it looks to be a spelling error Thoracolumbar division is the correct spelling
In cells, biological sources of energy (ATP) are produced by mitochondria -
TRUE
The exteroceptive somatosensory system is responsive to internal stimuli.
FALSE, responsive to external stimuli, L5 4
Autonomic Nervous System post-ganglionic axons are not myelinated.
TRUE, L4 23, this is a repeat
Under sympathetic influence, the kidneys reduce urine output
TRUE, L4 25
The neurotransmitter used by the parasympathetic division of the ANS is acetylcholine
TRUE
Neurological damage above the brain stem results in flaccid muscles.
FALSE, L4 9, would potentially result in uncontrolled muscle movements instead - spastic
Muscle tone is the result of the integrity of muscle fibers’ elasticity
FALSE - L2, S31
Sensory pathways to the brain are slower than motor pathways from the brain.
FALSE - motor neuron pathways have fewer relay stations than sensory pathways (L2 22)
Calcium is critical for the proper functioning of synaptic vesicles
TRUE, L3 31
The Basal Ganglia is contributing significantly to optimal neurological arousal in the brain
False; L2 23: Reticular formation = “source of neurological arousal”
The Blood Brain Barrier protects all neurons in the brain from toxins.
False, the area postrema has neurons too, L3 19
ATP (biological energy) is produced in cells by mitochondria.
TRUE
Most neurons undergo mitosis throughout the life of the organism
FALSE
The integrity of your coccyx is crucial for your quality of life.
FALSE
All sensory pathways from the body to the cortex are contralateral.
FALSE
We have more glial cells than neurons at birth.
FALSE, L3 14
The integumentary system is the largest organ in our body
TRUE
In a healthy brain, optimal levels of red blood cells the cerebral spinal fluid are crucial.
FALSE
Damage to a motor pathway to a limb below the Reticular Activating System will result in muscle spasticity
FALSE, there would be insufficient arousal for muscles and they will decay
