Homeostasis
Two things the body can do (physiologically) to lower temperature
Sweating, Vasodilation
The name for a number of processes involving communication and resulting effects that maintain the body at a 'setpoint'
Negative Feedback Loop
A behavioural response to the cold involving sharing body heat with other organisms of the same species
Double points for the scientific term
Common term: Huddling
Scientific term: Kleptothermy
What are the two main divisions of Nervous System
Central & Peripheral
How do hormones travel around the body?
In the blood
Two things the body can do to (physiologically) raise temperature
Vasoconstriction, Goosebumps (piloerection), shivering
The name for a number of processes involving communication and resulting effects that moves the body away from that 'setpoint'
Positive Feeback Loop
Classification for an organism whose body temperature is dependent on its environment
Ectotherm
What are the 2 ways signals travel through the nervous system?
Electrically and Chemically
What are the parts of the body that release hormones?
Glands
Hormone that lowers blood glucose levels
Insulin
A thermostat on the wall (for an air conditioner) is an example of a ___________Feedback Loop
Negative
Classification for an organism whose body temperature is managed independently of its environment
Endotherm
What is the Space between a dendrite and axon known as?
Synapse
Name 3 glands
Hormone that raises blood glucose levels (releases stored sugar around liver)
Glucagon
Negative feedback loop fill the blank:
Stimulus -> ______________ -> Processing Centre
Sensory receptor
A physiological state of inactivity whereby the metabolic rate of an organism is lowered to save energy (typically lasts for a few hours).
Torpor or Aestivation
Hibernation (mammals) and Aestivation (reptiles) are examples of prolonged Torpor
What is the term for a chemical messenger?
Neurotransmitter
Briefly explain how hormones work and cause changes around the body.
They are released from glands, travel through the bloodstream and attach to the specific receptors at the target cells.
Name two body systems that interact in order to bring oxygen into the body and allow carbon dioxide to be removed.
Circulatory system and Respiratory system
Negative feedback loop fill the blanks
Processing centre -> Effector -> ____________
Homeostasis restored/Setpoint restored/movement of negative condition towards setpoint
I watch your temperature night and day? When you get too hot, I open your pores to let sweat escape and when you are too cold, I make you muscles shiver. Who am I?
Hypothalamus.
What is the resting membrane potential of a Neuron
-70mV
Distinguish 3 differences between the Endocrine and Nervous
slow releasing
less specific
chemical
travel in blood