Answer:
A. True
Explanation:
Morbidity involves the condition of having a disease while mortality is the condition of being deceased(dead).
For a particular disease at a specific time period, morbidity rates should always be equal or greater than mortality rate. This will ensure all the species affected by the disease aren’t wiped out in an instant as every organisms have different roles to play in the ecosystem.
The eyes and nose are on the ________ surface of the body
Answer:
Outer
Explanation:
The eyes and nose are the sense organs present on the anterior surface of the body
What are the different types of sense organs ?Human body have five sense organs to see, hear, smell, taste and touch.
Eyes of the visual system provide vision. Human beings have different color of eyes depending on the amount of melanin present in it.
Nose of the olfactory system have nostrils, through which we breathe, smell different odors.
Ears are the auditory organs, perceive sound by detecting vibrations, pressure changes in the surrounding medium through time.
Skin is the sense of touch, is the largest organ of human body. Different receptors are present on the surface of skin to sense pain, temperature, pressure, etc.
The tongue is the organ for taste, have various receptors which can salty, sweet, bitter or sour.
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Which is the correct path of an electrical excitation from the pacemaker to a cardiomyocyte in the left ventricle (LV)?
Answer:
The question is lacking the options, below is the completely stated question and options:
This is the correct path of an electrical excitation from the pacemaker to a cardiocyte in the left ventricle (LV).
A. sinoatrial (SA) node → atrioventricular (AV) node → atrioventricular (AV) bundle → Purkinje fibers → cardiocyte in LV
B. atrioventricular (AV) node → sinoatrial (SA) node → atrioventricular (AV) bundle → Purkinje fibers → cardiocyte in LV
C. sinoatrial (SA) node → atrioventricular (AV) bundle → atrioventricular (AV) node → Purkinje fibers → cardiocyte in LV
D. atrioventricular (AV) node → Purkinje fibers → atrioventricular (AV) bundle → sinoatrial (SA) node → cardiocyte in LV
E. sinoatrial (SA) node → atrioventricular (AV) node → Purkinje fibers → atrioventricular (AV) bundle → cardiocyte in LV
Answer:
The correct answer is:
sinoatrial (SA) node → atrioventricular (AV) node → atrioventricular (AV) bundle → Purkinje fibers → cardiocyte in LV (A.)
Explanation:
The electrical impulse conduction system of the heart refers to the pathways through which electrical signals pass, to cause excitation of specific paths of the heart, leading to depolarization, which in turn leads to contraction and relaxation of the heart. The correct excitation pathway is as follows:
1. Normal excitation originates in the sinoatrial (SA) node, from which depolarization spreads throughout the atria, causing impulses (excitation) to spread from the SA node to the atria. It is believed that this depolarization spreads to the atrial cells through adjacent myocardial cells and myofibrils.
2. Next, the depolarization from the atria reaches the atrioventricular (AV) node, causing excitation of the AV node. The AV node is located on the floor of the right ventricle, close to the interventricular septum. The excitation leaves this site by two pathways; the fast and slow pathways which vary based on the time of transmission of impulses to the next phase.
3. Next, from the AV node, the excitation is passed to the two branches of the bundle of His, which form a network of fibers known as purkinje fibers, from where excitation passes to the apical region of the left and right ventricles causing depolarization of the ventricular myocardium.
Attached to this answer is a picture to show what the pathway looks like.
The correct path of an electrical excitation from the pacemaker to a cardiomyocyte is:
sinoatrial (SA) node → atrioventricular (AV) node → atrioventricular (AV) bundle → Subendothelial conducting network → cardiomyocyte in LV.
The heart is a cone-shaped hollow muscular organ that possesses the property of generating its own electrical impulses or excitations.
It is divided into four(4) chambers namely the right ventricle, left ventricle, right atrium and left atrium.
The correct path of an electrical excitation is from:
The pacemaker: This is also called the sinoatrial (SA) node. It generates the electrical excitations.Atrioventricular (AV) node: The electrical excitation initiated by SA node is then transmitted to AV node. This transmits the signal from atria to ventricles.Atrioventricular (AV) bundle: These are specialised fibres that originate from the AV node. They are the bundle that divides to form the right and left bundle branches.Subendothelial conducting network: This is also called the Purkinje fibres which is formed within the ventricular myocardium.Cardiomyocyte of the left ventricle: The cardiomyocytes are set of cells that generates contractile force in the heart. These are located at the left ventricle.Therefore, the correct path of an electrical excitation from the pacemaker to a cardiomyocyte is:
sinoatrial (SA) node → atrioventricular (AV) node → atrioventricular (AV) bundle → Subendothelial conducting network → cardiomyocyte in LV.
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Strength tests on four batches of concrete show them to fail at 81, 78, 86, and 95 ksi. The standard deviation of this sample is most nearly:
Answer:
The standard deviation of this sample is 7.438
Explanation:
We are given that Strength tests on four batches of concrete show them to fail at 81, 78, 86, and 95 ksi.
Data: 81, 78, 86, and 95
We are supposed to find standard deviation of this sample
Formula :[tex]\sqrt{\frac{(x-\bar{x})^2}{n-1}}[/tex]
n = 4
[tex]\bar x=\frac{81+78+86+95}{4}=85[/tex]
Substitute the values in the formula :
Standard deviation=[tex]\sqrt{\frac{(81-85)^2+(78-85)^2+(86-85)^2+(95-85)^2}{4-1}}[/tex]
Standard deviation=7.438
Hence The standard deviation of this sample is 7.438
on a footpad, which layer of skin is the thickest
Answer:
Stratum corneum is the layer of skin that is the thickest.
Hope this helps! （づ￣3￣）づ╭❤～
when does human life begin
a solution contains 65 mg/ml of sodium pentobarbital. What volume of this drug would be appropriate to administer to a 300 g laboratory rat at dose of 40 mg/kg
Answer:
0.18 ml would be appropriate
Explanation:
1kg ↔ 1000mgx ↔ 300mg
x = 0.3 kg
therefore; 40 × 0.3 = 12 mg/kg
65 ↔ 1ml12 ↔ y
y = 0.18 ml
When we sleep, what does the brain replenish it’s stock for?
Answer:
it does not replenish shock but has cerebrospinal fluid that absorbs shock
2. Most office supplies are purchased through a
O mediator.
O seller.
O vendor.
O retailer.
Answer:
retailer.
Explanation:
hope it's helpful
Arthrodesis is a procedure sometimes used to treat severe arthritis or a damaged joint.
What is this?
Answer:
joint fusion
Explanation:
g what constitutes a healthy or normal bmi? what are some of the reasons it is useful to have a single number, such as a bmi, to describe a height/weight relationship? what are the drawbacks?
Answer:
BMI is the shortened form for Body Mass Index.
The Body Mass Index is a simple arithmetic for determining one's body fat using their height and weight.
The formula is given as
[tex]\frac{Weight (Kilograms)}{Height (Metres)}[/tex] or
[tex](\frac{Weight (Pounds)}{Height (Inches}) * 703[/tex]
If an adults BMI falls within the 18.5 to 24.9 range, it is considered healthy.
One of the benefits of using BMI as a health metric is that it is so easy to compute.
Its major disadvantage is that it only accounts for height and weight which can be altered by a variety of circumstances and as such in most cases are not the best indicators of whether or not, one if healthy.
For example, a higher muscle mass will mean more weight and as such, a higher BMI. Generally speaking, more muscle and less fat is healthy. So BMI, in this case, is useless as a metric of health status.
Other factors which alter the reading of BMI are: Gender, Frame Size, Age,
Pregnancy etc.
An individual who is very muscular, pregnant, or have a large frame, will most likely have a higher BMI calculation which may indicate that one is obese or overweight when they're not.
Cheers!
The content of total body water in in adult women is *
Answer:
The content of total body water in adult women is on average 52-55 percent water.
Explanation:
The content of total body water can vary on many factors, including age, health, water intake, weight, and sex.
Answer:
if we talkin knowledge it would be bellow the iq of 16
Explanation:
If cancer runs in your family, what will your doctor likely do?
Answer:
Your doctor will most likely treat your family.
Explanation:
When clamping the umbilical cord, the clamp closest to the baby should be approximately ________ inch(es) from the infant's body.
Answer:
The correct answer is - 7 to 10 inches.
Explanation:
The infant and placenta of the mother is connected with the umbilical cord which is need to be cut to separate the infant from placenta. Umbilical cord carries important nutrients and blood to the infant from the mother.
Clamping the umbilical cord is oldest technique which is necessary to separate the baby from the placenta. The closest clamp should be approximately 7 inches to maximum of 10 inches to the body of infant.
Thus, the correct answer is - 7 to 10 inches.
If you diluted 300mL of 8 % benzocaine lotion to 5%, how much could you produce?
According to the escience lab manual for lab 1, experiment 3, you need to prepare a 47 mL of a 24% soda/syrup prescription. To do this, you can use the 80% syrup solution and the 10% soda solution that you have in stock. How many mLs of soda solution do you need to create this final solution?
Answer:
33 mL
Explanation:
It is important to recognize that the total amount of pure syrup remains constant:
Total syrup in the stock solution = total syrup in dilute solution
Thus, we can use the dilution formula
V₁c₁ = V₂ c₂
Data:
V₁ = ?; c₁ = 80 %
V₂ = 47 mL; c₂ = 24 %
Calculations:
1. The volume of stock syrup
[tex]\begin{array}{rcl}V_{1}c_{1} & = & V_{2}c_{2}\\V_{1}\times80 \, \% & = & \text{47 mL}\times 24 \, \%\\80V_{1} & = & \text{1130 mL}\\V_{2}&=& \dfrac{\text{1130 mL}}{80}\\\\&=&\text{14 mL}\\\end{array}\\\text{You need $\textbf{14 mL}$ of stock syrup.}[/tex]
2. The volume of soda solution
Total volume of dilute solution = 47 mL
The volume of stock syrup = 14
Volume of soda solution = 33 mL
You need 33 mL of soda solution.
which STD/STI can cause genital warts and cervical cancer A. Syphilis B. HPV C. Gonorrhea D. HIV/AIDS
Answer:
Hpv
Explanation:
Hpv can cause warts and cervical cancer. its the most common viral infection
Answer:
B. HPV
Explanation:
Genital warts a sexually transmitted infection (STI) caused by certain low-risk strains of the human papillomavirus (HPV). These are different from the high-risk strains that can lead to cervical dysplasia and cancer. HPV is the most common of all STIs.
1. Asthma is a restrictive lung disorder that causes constriction and congestion of the pulmonary bronchioles. How would an asthma attack affect FVC
Answer:
by hyperinflation of lungs
Explanation:
Asthma is a disease of the lungs caused by inflammation and narrowing of the airways, thereby difficulting breath. Severe asthma disorders are associated with a significant decrease in the rate of maximal expiratory airflow and the reduction in the total volume expired, which is a value known as Forced Vital Capacity (FVC). In consequence, severe asthma events are correlated with the hyperinflation of the lungs and thus be a possible cause for the observed reduction in the FVC.
What methods do you think can should be used to protect patient information?
Answer:
you should never reveal some patients information to anyone who isn't related to the patient or who ever you find suspicious.
Explanation:
okay, if you're working as a receptionist in a hospital( no offense to you, its just a hypothetical) then you should try to tell that the information was lost or was given as classified so you can't reveal the information even if they cry over your desk
A nurse wants to become part of a Disaster Medical Assistance Team (DMAT) but is concerned about maintaining licensure in several different states. What statement by the nursing supervisor best addresses these concerns?
Answer: a. "Deployed DMAT providers are federal employees, so their licenses are good in all 50 states."
Explanation:
Disaster Medical Assistance Teams are teams consisting of professionals and para-professionals in the medical profession who are called upon during matters of National Emergency when medical personnel are needed to respond rapidly to save lives. They therefore deal with events such as terrorist attacks, natural or man-made disasters, disease outbreaks and the like.
They fall under the National Disaster Medical System which operates at a Federal level. As such, DMAT teams are by extension, Federal employees who are licensed to provide help in every state of the Republic so the nurse does not to be concerned about maintaining licensure in several different states.
What are the three types of transmission-based precautions used along with standard precautions?
Airborne, droplet and contact precautions.
Birborne, droplet and indirect precautions.
Birborne, indirect and contact precautions,
Aerobic, anaerobic and contact precautions.
Answer:
Airborne, droplet and contact
Explanation:
For how long should most adults in moderately good physical condition and with healthy lungs be able to hold their breath
Answer:
30 seconds and up to 2 minutes
Explanation:
Most adults should be able to hold their breath for between 30 and 1 minute if they are in relatively excellent physical condition and have healthy lungs. However, this can change depending on things like age, fitness level and general health.
What is Health?The concept of health is comprehensive and includes a state of mind, body and social relations of an individual. Physical fitness is the state of a person's body and their ability to engage in physical activity without experiencing excessive fatigue or physical restrictions. Regular exercise, proper diet, getting enough sleep and avoiding bad habits like smoking and excessive drinking are all necessary to maintain excellent physical health.
Maintaining healthy lungs is important for maintaining physical health in terms of lung health. The lungs are affected by many variables including smoking, air pollution and respiratory diseases. They are in charge of supplying oxygen to the body and eliminating carbon dioxide. Regular exercise can help increase lung capacity and function.
Therefore, most adults should be able to hold their breath for between 30 and 1 minute if they are in relatively excellent physical condition and have healthy lungs.
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Zane is told that he may develop AIDS in his lifetime. Which signs and symptoms would indicate that he has AIDS
Answer:
Reduction in body size
38. A pregnant client experiences persistent severe headaches and unexplained spells of dizziness during training, what should the trainer do?
Answer:
The coach should immediately stop physical activity and then take your blood pressure.
Explanation:
Many pregnant women tend to suffer from preclampcia, which is high blood pressure during pregnancy, which is very careful since it is risky for the mother and the baby.
High blood pressure in pregnant women can cause detachments of the placenta, interruption of pregnancy or spontaneous abortion.
It is very risky not to perceive these signs or said pathology, those pregnant women who are diagnosed with high blood pressure should do strict rest and monitoring.
Pregnant women bear the weight and physiological conditions of the baby and child. The trainer should immediately halt the training and check for the vitals of the women.
The trainer should do the following:
1. The trainer should immediately stop the training if the woman is experiencing dizziness and persistent severe headaches.
2. The symptoms could indicate the cause of preeclampsia, which is one of the most common complications of pregnancy. It has symptoms of high blood pressure, damage to the organ systems, and dizziness.
3. The trainer should immediately check for the vitals and measure the blood pressure of the pregnant women. The trainer should immediately contact the medical physician for monitoring and checking of the pregnant women.
Thus, the trainer should stop exercising and check the blood pressure.
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Lynn suffers from frequent seizures, and doctors suspect that they might be occurring because of unusually high levels of which neurotransmitter?
The most
common cause
of sexual
ambiguity
is
An 80-year-old client that takes a diuretic for the management of hypertension, informs the nurse that she
taes laxatives daily to promote bowel movements. The nurse assess the client for possible symptoms of
which condition?
Answer:
Hypokalemia
Explanation:
Some diuretics are designed to get rid of potassium. Laxatives create bowel movements which also excrete potassium. Potassium controls cardiac rhythm and can cause death if there is a potassium imbalance.
Atrial fibrillation, rheumatic heart disease, and valvular prosthetics are risk factors for which type of stroke
Answer: Embolic stroke
Explanation:
Embolic stroke is a form of stroke thqt occurs when a debris or a blood clot travels from one body part and then stays in the narrower brain artery, thereby blocking the flow of blood into the brain.
It should be noted that Atrial fibrillation, rheumatic heart disease, and valvular prosthetics are risk factors for embolic stroke.
Answer:
Embolic
Explanation:
They all potentiate the possibility of a blood clot to form
Which method of collecting a dietary history is the most time-consuming and requires a high degree of motivation to complete
Questions
Which of the following methods of collecting a dietary history is the most
time-consuming and requires a high degree of motivation to complete?
A) food record
B) food frequency questionnaire
C) direct observation
D) 24-hour food recall
Answer:
The correct answer is A) Food Record.
Explanation:
The diet history refers to the historical assessment of an individuals food or dietary intake. It may detail the foods eaten over a 24 hour period, a month or a year.
Dietary History are important as they help to ascertain
whether or not the subject is pre-disposed to malnutrition, determine if there are habits which may lead to obesity, anda dietary combination which will help prevent diseasesCheers!
A home health nurse who sees a client with diverticulitis is evaluating teaching about dietary modifications necessary to prevent future episodes. Which statement by the client indicates effective teaching
Answer:
"I should increase my intake of fresh fruits and vegetables during remission"
Explanation:
Diverticulitis is an inflammation or infection in one or more small pouches in the digestive tract. After the nurses' teachings a statement that would indicate this would be "I should increase my intake of fresh fruits and vegetables during remission". This is because, even though doctors say that patients with diverticulitis should avoid high fiber diets, when in remission eating lots of fresh fruits and vegetables is known to prevent acute diverticulitis.
Assuming all blood types are equally common, people with what blood types would have the best and worst odds of finding a donor?
