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23/24 U1L5 Opener

Total questions: 11

Worksheet time: 12mins

Name
Class
Date
1.

To develop goosebumps the thermoreceptors, ​ (a)   will get respond to stimuli like cold temperature. The stimuli signal is sent to the hypothalamus, ​ (b)   , which responds by sending a signal to the arrector pili, ​ (c)   , to pull on the hair follicle of each hair to reduce airflow to the skin preventing loss of heat.

Choose from the below words
receptor
integrating center
effector
2.
What type of feedback loop is shown?
a)
Positive
b)
Neutral
c)
Negative
3.
What type of feedback loop is shown?
a)
negative
b)
neutral 
c)
positive
4.
Negative Feedback Loops:
a)
amplify processes
b)
prevent small changes from getting larger
c)
are initiated during childbirth
d)
are found only in plants
5.
When glucose levels in the blood rise, your brain sends a signal to your pancreas. The pancreas releases insulin, which opens channels in cell membranes to allow glucose to enter the cell, lowering blood sugar levels. 
a)
Positive Feedback Response
b)
Negative Feedback Loop 
6.

According to the feedback loop, what does high blood sugar promote?

a)

Insulin Release

b)

Glucagon Release

c)

Insulin Uptake

d)

Glycogen Uptake

7.
When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding. The hormone signals continue until the cut is closed.
a)
Positive Feedback Response
b)
Negative Feedback Loop 
8.

Identify each of the types of heat loss by matching the word to the definition

9.

Put the following fever scenario steps in order

a)

Endogenous pyrogen is released from lymphocytes raising the thermoregulatory set point in the hypothalamus to maintain a higher body temperature!

b)
  • Higher body temperature causes the spleen and liver to hang onto their supplies of iron; Reducing the levels of iron in the blood. 

c)
  • Bacteria and viruses need iron in the blood to thrive as temperatures rise

d)
  • Lack of iron and higher body temperatures will cause the bacteria/viruses growth/proliferation to slow to a stop!

1)
2)
3)
4)
10.

Which one of the following is not the sign of inflammation.

a)

Bleeding

b)

Pain

c)

Redness

d)

Swelling

11.
Question Image

match the signs of inflammation with their definition

a)

Result of blood vessels dilating and the consequent increase of blood flow and volume within the affected tissues. 

1.

redness

b)

Increased blood flow due to blood vessel dilation with increase in permeability of nearby capillaries will cause swelling

2.

swelling

c)

Heat comes from blood from deeper body parts, which is generally warmer than that near the surface.

3.

heat

d)

Pain results from nearby pain receptors that are stimulated

4.

pain

e)

reflex muscle inhibition, disruption of tissue structure

5.

failure to function