Nervous System And Hormones Flashcards
(19 cards)
What’s the order of the nervous system
Stimulus
Receptor
Coordinator
Effector
Response
Examples of Sense and sense organs
Smell-nose
Touch-skin
Sight-eyes
Sound-ears
Taste-tounge
Voluntary actions
Involves thinking
Brain is the coordinator
Slower than reflex
Reflex actions
Doesn’t involve thinking
Spinal chord is the coordinator
Quicker than voluntary actions
What’s the reflex arc and the 3 neurons
S=ensory neurone-carries impulses from receptors to coordinator
A=ssociate nurone-connects sensory neuron to motor neuron
M=otor nurone- carries imulses from coordinator to effectors
What Dose the hormones travel to
Hormones are produced in glands
Travel in blood
Work on target organ
What’s a hormone
Chemical messenger produced in glands
What’s a gland
Special organs which produce hormones and release them in to blood
What’s a target organ
Where hormones travel to And have their effect
What’s the insulin process
Insulin released by pancreas
Travels in blood
Work on target organ which is liver
What dose insulin do in the liver
Converts glucose into glycogen and makes other cells absorb glucose to use it in respiration
What can cause blood glucose levels to rise
Eating carbohydrates e.g bread/pasta/potatoes all contain starch. Starch is digested into glucose and absorbed in blood
What’s the equation for respiration
Glucose+oxygen—> carbon dioxide+ water
What are the symptoms for diabeties
-Sugar in urine (bc blood sugar levels are too high Al sugar is removed through kidney
-thirsty and bc they drink so much they need to go to the toilet loads
-tiredness
-coma
What is time 1 diabetes
Pancreas doesn’t make insulin or makes very little imsulin
What is type 2 diabeties and how is it caused
Fewer ppl exercising and obesity/poor diet so the pancreas produces less insulin
What happens when some one with diabeties gets too high or too low glucose levels
Too high-inject with insulin
Too low-take extra glucose carbohydrates
How can type 2 diabetes be controlled
Medicines
Changes in your diet
Activity levels to help control body sugar levels
What are the long term effects associated with diabeties
Eye damage possible blindness
Heart disease and strokes
Kidney damage
