Homostasis

Question 1

What is homeostasis

Answer 1

ability to regulate internal conditions so reactions can happen at optimal rates

Question 2

what does the body need to regulate

Answer 2

blood glucose concentration
internal temperature
water levels

Question 3

what happens in the nervous system

Answer 3

receptor detects change due to a stimulus where electrical impulses are sent to the spine via sensory neurons. then to the brain where sends a response to the effector by the motor neurons where a response is carried out

Question 4

what are the signals between neurons called

Answer 4

synapses

Question 5

how do electrical impulses get passed between cells

Answer 5

electrical impulses are temporarily changed into chemical signals called neurotransmitters

Question 6

what happens during a reflex

Answer 6

receptors detect stimulus where sensory neurons send electrical impulses to the spine where the relay neuron passes impulses into the motor neuron which passes into the effector and a response is carried out

Question 7

What is the endocrine system

Answer 7

glands that secrete hormones to send signals to effectors via the blood

Question 8

what does the pituitary gland do

Answer 8

sends signals to other glands

Question 9

what does the thyroid gland do

Answer 9

controls the growth and metabolism

Question 10

what does the pancreas do

Answer 10

releases insulin and glucagon which regulate blood sugar levels

Question 11

what does the adrenal gland do

Answer 11

releases adrenaline which increases breathing rate and heart rate to prepare for fight or flight

Question 12

ovaries and testies

Answer 12

releases sperm,eggs and hormones

Question 13

what is a hormone

Answer 13

a chemical messenger secreated by the glands into the bloodstream to get to a target organ