Week 1 - Homeostasis & Feedback Systems Flashcards
Using your fingers to find your pulse on your wrist is an example of
a) auscultation.
b) palpation.
c) percussion.
d) laparoscopy.
e) electrocardiography.
b) palpation.
Percussion techniques can be used to detect
a) heart beats.
b) pulse rate.
c) arthritis.
d) fluid in the lungs.
e) enlarged organs.
d) fluid in the lungs.
The composition of this body fluid, which fills the narrow spaces between cells and tissues, directly affects the proper functioning of cells.
a) lymph
b) blood plasma
c) interstitial fluid
d) intracellular fluid
e) vitreous body
c) interstitial fluid
This is the structure of a feedback system that receives output from the control center.
a) receptor
b) stimulus
c) response
d) effector
e) efferent pathway
d) effector
This is the structure of a feedback system that provides input to the control center.
a) receptor
b) muscle
c) response
d) effector
e) efferent pathway
a) receptor
Objective changes in a patient’s normal body function that can be directly observed or measured by a clinician are referred to as
a) symptoms.
b) disorders.
c) disturbance.
d) diseases
e) signs.
e) signs.
This directional term means farther from the midline.
a) medial
b) anterior
c) proximal
d) deep
e) lateral
e) lateral
This directional term means farther from the attachment of a limb to the trunk or farther from the origination of a structure.
a) deep
b) contralateral
c) lateral
d) cephalic
e) distal
e) distal
Choose the directional term that would make the following sentence correct. The heart is_____ to the liver.
a) inferior
b) anterior
c) contralateral
d) superior
e) superficial
d) superior
Choose the directional term that would make the following sentence correct. The sternum is____ to the heart.
a) posterior
b) anterior
c) inferior
d) superior
e) lateral
b) anterior
What is the name given if the body cannot maintain a state of balance through a feedback?
Homeostatic imbalance
What hormone is stimulated during childbirth?
Oxytocin
What is an example of a negative feedback system?
Body temperature
What is an example of a positive feedback system?
Child birth
What is a stimulus?
Anything that changes a condition
What is the definition of Homeostasis?
The body’s ability to maintain a balanced internal environment.
What are some examples of body processes that are regulated?
1) Blood pressure
2) Body Temperature
3) Blood Glucose
Define a feedback system?
It involves the the continual monitoring, evaluating & changing of a body condition to keep it in it’s normal range.
What is the function of a feedback system?
To feedback information to change the controlled condition.
Name the 3 main components of a feedback system.
1) Receptor (nerve impulse/action potential)
2) Control Centre
3) Effector
Define the term receptor & give an example.
A receptor constantly monitors the controlled condition. When changes occur it send input about the change to the control centre.
Define the term control center & give an example.
The control centre determines the particular setpoint for the controlled condition which is the range of values in which the condition is to be regulated.
What is the most common control center in the body?
The Brain
Define the term effector & give an example.
The effector receives the output sent from the control center & generates a specific response or effect that can bring the controlled condition back to its original setpoint.
What is the difference between a negative and positive feedback system?
A negative reverses a chance in a controlled condition whereas a positive reinforces a chance in on of the body’s controlled conditions i.e. child birth.
Give examples of homeostatic imbalances.
Headache, nausea, anxiety
Describe the anatomical position
Standing upright, head level & eyes facing forward. Feet flat on floor & orientated forward & arms at side with palms facing forward.
What are the six life processes of the human body?
1) Metabolism
2) Growth
3) Movement
4) Responsiveness
5) Differentiation
6) Reproduction
List the 11 systems of the body
1) Integumentary
2) Skeletal
3) Muscle
4) Digestive
5) Cardiovascular
6) Lymphatic
7) Nervous
8) Endocrine
9) Urinary
10) Reproductive
11) Respiratory
Which feedback system brings you back to the controlled condition?
Negative (most common out of the two)
