Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Kim Ferguson

Physiology Week 1

QuestionAnswer
The impact of effector activity on sensors may be positive or negative. Therefore, homeostatic control mechanisms are categorized as organs that are directly influenced by physiological variables or mechanisms.
Because negative feedback control systems oppose changes that are opposite in direction to the initial disturbance, they are slowed or maintained in the homeostatic range.
Which level of control operates at the cell level, often using genes and enzymes to regulate cell function? intracellular regulation
What term describes a signal traveling toward a particular center or point of reference? afferent
Which of the following is a basic component of every feedback control loop? sensor mechanism integrating center effector feedback All of these are components of a feedback control loop.
Extrinsic control usually involves which mode of regulation? nervous endocrine Both A and B are correct.
Processes for maintaining or restoring homeostasis are known as homeostatic control mechanisms.
Effectors can be described as organs that directly influence controlled physiological variables.
The body naturally changes some set points to different values at different times of the day. These daily cyles are called circadian cycles.
The concept that information may flow ahead to another process to trigger a change in anticipation of an event that will follow is called feed-forward.
Local control or _____, intrinsic mechanisms often make use of chemical signals. autoregulation
Events that lead to an immune response to an infection or the formation of a blood clot are examples of positive feedback.
The normal reading or range is called the set point.
Many complex processes of the body are coordinated at many levels. These include intracellular. intrinsic. extrinsic. All of these are correct.
The relatively constant state maintained by the body is known as homeostasis.
To accomplish self-regulation, a highly complex and integrated communication control system or network is required. This type of network is called a(n) feedback control loop.
Of the pathogenic organisms, which of the following are the most complex? Tapeworms
Which of the following is not one of the basic components in a feedback control loop? Transmitter
The body’s thermostat is located in the: hypothalamus.
Intracellular parasites that consist of DNA or RNA surrounded by a protein coat and sometimes by a lipoprotein envelope are called: viruses.
Negative-feedback mechanisms: minimize changes in blood glucose levels. maintain homeostasis. are responsible for an increased rate of sweating when air temperature is higher than body temperature. All of the above are correct.
The contraction of the uterus during the birth of a baby is an example of _____ feedback. positive
Pathogenesis can be defined as: the course of disease development.
Intracellular parasites that consist of DNA or RNA surrounded by a protein coat and sometimes by a lipoprotein envelope are called: viruses.
Of the pathogenic organisms, which of the following are the most complex? Tapeworms
Of the 11 major body systems, which is the least involved in maintaining homeostasis? Reproductive
Epidemiology is the study of the _____ of diseases in human populations. occurrence distribution transmission All of the above are correct.
The normal reading or range of normal is called the: set point.
The body’s thermostat is located in the: hypothalamus.
Which of the following may put one at risk for developing a given disease? Environment Stress Lifestyle All of the above
Shivering to try to raise your body temperature back to normal would be an example of: the body trying to maintain homeostasis. a negative-feedback mechanism. both A and C
Positive-feedback control systems: accelerate a change.
Which of the following is a protein substance with no DNA or RNA and is thought to be the cause of mad cow disease? Prion
Intrinsic control: is sometimes called autoregulation.
Negative-feedback control systems: oppose a change.
Which of the following is not one of the basic components in a feedback control loop? Transmitter
The term that literally means self-immunity is: autoimmunity.
Homeostasis can best be described as: a state of relative constancy.
If the secretion of oxytocin during childbirth operated as a negative-feedback control loop, what effect would it have on uterine contractions? Oxytocin would inhibit uterine contractions.
Which of the following is a basic component of every feedback control loop? sensor mechanism integrating center effector feedback all of these are component of a feedback control loop.
Created by: Kferguson76
Popular Physiology sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards