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Home Q & A Board Biology-Related Homework Help Cell Biology
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What stimulus causes posthyperventilation apnea (PHVA)?
What stimulus causes posthyperventilation apnea (PHVA)?
What stimulus causes posthyperventilation apnea (PHVA)?


▸ Changes in PaO2 levels

▸ Changes in PaCO2 levels

▸ Damage to the forebrain

▸ Any arrhythmic breathing pattern
anushaz06   68   1 Reply
2 years ago
Which intracerebral disease process is capable of producing diffuse dysfunction?
Which intracerebral disease process is capable of producing diffuse dysfunction?
Which intracerebral disease process is capable of producing diffuse dysfunction?


▸ Closed-head trauma with bleeding

▸ Subdural pus collections

▸ Neoplasm

▸ Embolic infarct
Amani   79   1 Reply
2 years ago
Cognitive operations cannot occur without the effective functioning of what part of the brain?
Cognitive operations cannot occur without the effective functioning of what part of the brain?
Cognitive operations cannot occur without the effective functioning of what part of the brain?


▸ Pons

▸ Medulla oblongata

▸ Reticular activating system

▸ Cingulate gyrus
sean1120   75   1 Reply
2 years ago
What is true about a fever? (Select all that apply.)
What is true about a fever? (Select all that apply.)
[html]What is true about a fever? (Select all that apply.)


▸ It is a complex cascade involving several different systems.

▸ It can be a result of a dysfunctional hypothalamus.

▸ It should be eliminated as quickly as possible.

▸
Tblack   59   1 Reply
2 years ago
What does heat exhaustion result in? (Select all that apply.)
What does heat exhaustion result in? (Select all that apply.)
[html]What does heat exhaustion result in? (Select all that apply.)


▸ Profuse sweating

▸ Profound vasodilation

▸ A need to ingest cool liquids

▸ Permanent damage to the hypothalamus

▸ An increased risk for future heat exhaustio
makmim3   64   1 Reply
2 years ago
Which statement is true regarding the gate control theory (GCT) of pain?
Which statement is true regarding the gate control theory (GCT) of pain?
[html]Which statement is true regarding the gate control theory (GCT) of pain?


▸ The pain gate is located in the brain.

▸ A closed gate increases pain perception.

▸ The brain primarily controls the pain gate.

▸ An open gate faci
Guest   65   1 Reply
2 years ago
A healthcare professional is caring for four postsurgical patients. Based on an understanding of the ...
A healthcare professional is caring for four postsurgical patients. Based on an understanding of the ...
[html]A healthcare professional is caring for four postsurgical patients. Based on an understanding of the physiologic process of nociceptors, the nurse expects to give more pain medication to which patient?


▸ Repair of several crushed fi
Guest   60   1 Reply
2 years ago
When considering the risk factors for the development of phantom limb pain, the nurse recognizes ...
When considering the risk factors for the development of phantom limb pain, the nurse recognizes ...
[html]When considering the risk factors for the development of phantom limb pain, the nurse recognizes which as a primary contributing factor?


▸ Age, with adolescent patients being at a higher risk than adults

▸ Presence of pain in the l
queenmeg   56   1 Reply
2 years ago
Why does open-angle glaucoma occur?
Why does open-angle glaucoma occur?
Why does open-angle glaucoma occur?


▸ Decreased production of aqueous humor

▸ Increased production of vitreous humor

▸ Obstructed outflow of aqueous humor

▸ Excessive destruction of vitreous humor
kyliesalm   59   1 Reply
2 years ago
What are the expected changes in sleep patterns of older adults?
What are the expected changes in sleep patterns of older adults?
[html]What are the expected changes in sleep patterns of older adults?


▸ Older adults experience difficulty falling asleep with less time spent in REM sleep.

▸ They experience sound sleep during the night with approximately 50% of the ti
ssp   61   1 Reply
2 years ago
A patient reports loud snoring, fragmented sleep, chronic daytime sleepiness, and fatigue. What ...
A patient reports loud snoring, fragmented sleep, chronic daytime sleepiness, and fatigue. What ...
[html]A patient reports loud snoring, fragmented sleep, chronic daytime sleepiness, and fatigue. What treatment does the healthcare professional anticipate teaching this patient about?


▸ Continuous positive airway pressure while sleeping
treyjames1   73   1 Reply
2 years ago
Rapid eye movement (REM) sleep occurs in cycles approximately how often?
Rapid eye movement (REM) sleep occurs in cycles approximately how often?
Rapid eye movement (REM) sleep occurs in cycles approximately how often?


▸ 45 minutes

▸ 90 minutes

▸ 120 minutes

▸ 150 minutes
stella.ledgerwo   52   1 Reply
2 years ago
Parents of a child report that the child wakes up from sleep expressing intense anxiety. What ...
Parents of a child report that the child wakes up from sleep expressing intense anxiety. What ...
Parents of a child report that the child wakes up from sleep expressing intense anxiety. What disorder does the healthcare professional educate the parents about?


▸ Night terrors

▸ Insomnia

▸ Somnambulism

▸ Enuresis
Addisonjo04   59   1 Reply
2 years ago
Which term is also used to refer to paradoxical sleep?
Which term is also used to refer to paradoxical sleep?
Which term is also used to refer to paradoxical sleep?


▸ Non-REM

▸ Light

▸ REM

▸ Delta wave
Bpr621   46   1 Reply
2 years ago
Which neuropeptide dysfunction is linked to narcolepsy?
Which neuropeptide dysfunction is linked to narcolepsy?
Which neuropeptide dysfunction is linked to narcolepsy?


▸ Prostaglandin D2

▸ L-tryptophan

▸ Hypocretins

▸ Growth factors
heberleber   53   1 Reply
2 years ago
In acute hypothermia, what physiologic change shunts blood away from the colder skin to the body ...
In acute hypothermia, what physiologic change shunts blood away from the colder skin to the body ...
In acute hypothermia, what physiologic change shunts blood away from the colder skin to the body core in an effort to decrease heat loss?


▸ Hypotension

▸ Peripheral vasoconstriction

▸ Voluntary muscle movements

▸ Shivering
Djkratos264   52   1 Reply
2 years ago
A healthcare professional is trying to lower a patients body temperature by convection. What action ...
A healthcare professional is trying to lower a patients body temperature by convection. What action ...
[html]A healthcare professional is trying to lower a patient’s body temperature by convection. What action by the professional will accomplish this?


▸ Lower the temperature in the patient’s room.

▸ Place the patient in a cooling blanket.
Amber_Bandit   59   1 Reply
2 years ago
A healthcare professional is caring for a patient who was rewarmed after suffering from hypothermia. ...
A healthcare professional is caring for a patient who was rewarmed after suffering from hypothermia. ...
[html]A healthcare professional is caring for a patient who was rewarmed after suffering from hypothermia. What possible long-term complication will the professional continue to assess the patient for?


▸ Acidosis

▸ Dysrhythmias

▸ Shock
lii   47   1 Reply
2 years ago
A patients chart describes visceral pain. What does the healthcare professional understand about this term?
A patients chart describes visceral pain. What does the healthcare professional understand about this term?
[html]A patient’s chart describes visceral pain. What does the healthcare professional understand about this term?


▸ Is sharp and well-defined when transmitted by A-delta (Aδ) fibers

▸ Is perceived as poorly localized and is transmitted
nicolehetman   63   1 Reply
2 years ago
Pain that warns of actual or impending tissue injury is referred to as what?
Pain that warns of actual or impending tissue injury is referred to as what?
Pain that warns of actual or impending tissue injury is referred to as what?


▸ Chronic

▸ Psychogenic

▸ Acute

▸ Phantom
Heeeyyyyyoooo   44   1 Reply
2 years ago
The healthcare professor states that a patient has reached pain tolerance. What further information ...
The healthcare professor states that a patient has reached pain tolerance. What further information ...
[html]The healthcare professor states that a patient has reached pain tolerance. What further information from the professor is most accurate?


▸ “The patient cannot endure a higher level of pain intensity at this point.”

▸ “The patient’s
Najah   72   1 Reply
2 years ago
Which endogenous opioid is located in the hypothalamus and pituitary and is a strong -receptor agonist?
Which endogenous opioid is located in the hypothalamus and pituitary and is a strong -receptor agonist?
Which endogenous opioid is located in the hypothalamus and pituitary and is a strong μ-receptor agonist?


▸ Enkephalins

▸ Endorphins

▸ Dynorphins

▸ Endomorphins
lizblackwelder   50   1 Reply
2 years ago
What part of the brain provides the emotional response to pain?
What part of the brain provides the emotional response to pain?
What part of the brain provides the emotional response to pain?


▸ Limbic system

▸ Parietal lobe

▸ Thalamus

▸ Hypothalamus
lolooe   74   1 Reply
2 years ago
Where is the gate in the gate control theory (GCT) of pain located?
Where is the gate in the gate control theory (GCT) of pain located?
Where is the gate in the gate control theory (GCT) of pain located?


▸ Substantia gelatinosa

▸ Marginal layer

▸ Nucleus proprius

▸ Dorsolateral tract of Lissauer
kenzmorrow99   56   1 Reply
2 years ago
Where are the primary-order pain-transmitting neurons located within the spinal cord?
Where are the primary-order pain-transmitting neurons located within the spinal cord?
Where are the primary-order pain-transmitting neurons located within the spinal cord?


▸ Lateral root ganglia

▸ Dorsal root ganglia

▸ Anterior root ganglia

▸ Medial root ganglia
jasss   86   1 Reply
2 years ago
What evidence does the nurse expect to see when a patient experiences trauma to the hypothalamus? ...
What evidence does the nurse expect to see when a patient experiences trauma to the hypothalamus? ...
[html]What evidence does the nurse expect to see when a patient experiences trauma to the hypothalamus? (Select all that apply.)


▸ Uneven expression of mood

▸ Unstable blood glucose levels

▸ Poor regulation of body temperature

▸
Aaron2081   59   1 Reply
2 years ago
The aging process brings about what changes to human cells? (Select all that apply.)
The aging process brings about what changes to human cells? (Select all that apply.)
[html]The aging process brings about what changes to human cells? (Select all that apply.)


▸ Increased neurofibrillary tangles

▸ Imbalance of neurotransmitters

▸ Increased neuron production

▸ Decreased myelin presence

▸ Altered
lovedarian   50   1 Reply
2 years ago
The sympathetic nervous system primarily serves to protect an individual by doing which of these? ...
The sympathetic nervous system primarily serves to protect an individual by doing which of these? ...
[html]The sympathetic nervous system primarily serves to protect an individual by doing which of these? (Select all that apply.)


▸ Decreasing mucous production

▸ Increasing blood sugar levels

▸ Increasing body temperature

▸ Decr
sam_48   45   1 Reply
2 years ago
What is the collateral blood flow to the brain provided by?
What is the collateral blood flow to the brain provided by?
What is the collateral blood flow to the brain provided by?


▸ Carotid arteries

▸ Basilar artery

▸ Circle of Willis

▸ Vertebral arteries
darlinlady95   61   1 Reply
2 years ago
The brain receives approximately what percentage of the cardiac output?
The brain receives approximately what percentage of the cardiac output?
The brain receives approximately what percentage of the cardiac output?


▸ 80%

▸ 40%

▸ 20%

▸ 10%
jackiezhou   54   1 Reply
2 years ago
Norepinephrine produces what primary response?
Norepinephrine produces what primary response?
Norepinephrine produces what primary response?


▸ Increased contractility of the heart

▸ Release of renin from the kidney

▸ Vasoconstriction

▸ Sleep cycle disturbance
jmmoulton   45   1 Reply
2 years ago
Which of the meninges closely adheres to the surface of the brain and spinal cord and follows the ...
Which of the meninges closely adheres to the surface of the brain and spinal cord and follows the ...
Which of the meninges closely adheres to the surface of the brain and spinal cord and follows the sulci and fissures?


▸ Dura mater

▸ Arachnoid

▸ Pia mater

▸ Inner dura
yaqub   66   1 Reply
2 years ago
Where is the cerebrospinal fluid (CSF) produced?
Where is the cerebrospinal fluid (CSF) produced?
Where is the cerebrospinal fluid (CSF) produced?


▸ Arachnoid villi

▸ Choroid plexuses

▸ Ependymal cells

▸ Pia mater
livesimply   50   1 Reply
Guest
2 years ago
Which area of the brain assumes the responsibility for involuntary muscle control and for ...
Which area of the brain assumes the responsibility for involuntary muscle control and for ...
Which area of the brain assumes the responsibility for involuntary muscle control and for maintaining balance and posture?


▸ Cerebrum

▸ Cerebellum

▸ Diencephalon

▸ Brainstem
petergreeker   46   1 Reply
2 years ago
Reflex activities concerned with heart rate, blood pressure, respirations, sneezing, swallowing, and ...
Reflex activities concerned with heart rate, blood pressure, respirations, sneezing, swallowing, and ...
Reflex activities concerned with heart rate, blood pressure, respirations, sneezing, swallowing, and coughing are controlled by which area of the brain?


▸ Pons

▸ Midbrain

▸ Cerebellum

▸ Medulla oblongata
Keka1819   60   1 Reply
2 years ago
Thought and goal-oriented behaviors are functions of which area of the brain?
Thought and goal-oriented behaviors are functions of which area of the brain?
Thought and goal-oriented behaviors are functions of which area of the brain?


▸ Cerebellum

▸ Limbic system

▸ Prefrontal lobe

▸ Occipital lobe
lindsaykinz   59   1 Reply
2 years ago
Both oligodendroglia and Schwann cells share the ability to do what?
Both oligodendroglia and Schwann cells share the ability to do what?
Both oligodendroglia and Schwann cells share the ability to do what?


▸ Form a myelin sheath

▸ Remove cellular debris

▸ Transport nutrients

▸ Line the ventricles
ALEX10   49   1 Reply
2 years ago
Which statements are true regarding cancers that develop in children? (Select all that apply.)
Which statements are true regarding cancers that develop in children? (Select all that apply.)
[html]Which statements are true regarding cancers that develop in children? (Select all that apply.)


▸ Childhood cancers tend to be fast growing.

▸ Childhood cancers are diagnosed during growth spurts.

▸ Childhood cancer g
kyliesalm   62   1 Reply
2 years ago
Most childhood cancers originate from the mesodermal germ layer that ultimately produces which of ...
Most childhood cancers originate from the mesodermal germ layer that ultimately produces which of ...
Most childhood cancers originate from the mesodermal germ layer that ultimately produces which of these? (Select all that apply.)


▸ Connective tissue

▸ Digestive system

▸ Muscles

▸ Kidneys

▸ Blood
Addisonjo04   48   1 Reply
2 years ago
Which statement is true concerning the difference between adult and childhood cancers? (Select all ...
Which statement is true concerning the difference between adult and childhood cancers? (Select all ...
[html]Which statement is true concerning the difference between adult and childhood cancers? (Select all that apply.)


▸ Numerous differences exist between these two categories of cancer.

▸ Genetic risk factors and congenital condi
Palak!   54   1 Reply
2 years ago
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