Unit 4: Homeostasis

Question 1

sensor
(feedback systems)

Answer 1

detects the change in the internal environment and sends a signal to the control center

Question 2

control center (feedback systems)

Answer 2

recieves signal from the sensor and will process information. then generates a signal for the effector

Question 3

effector (control center)

Answer 3

responds to the signal and creates change

Question 4

neg. feedback system

Answer 4

output reverses variable bringing it back to a normal state of balance

Question 5

pos. feedback system

Answer 5

output increases the change in variable

Question 6

dendrite

Answer 6

recieves signal from other neurons

Question 7

axon

Answer 7

transmits electrical signals from cell body to axon terminal

Question 8

node of ranvier

Answer 8

regenerates an electrical signal

Question 9

myelin sheath

Answer 9

fatty insulation that helps conduct the signal quickly and efficiently

Question 10

axon terminal

Answer 10

connected to the adjacent neuron, transmits signal chemically

Question 11

schwan cell

Answer 11

wraps around the axon to create the myelin sheath

Question 12

glial cells (type of neuron)

Answer 12

non-conducting neurons that provide structural support

Question 13

sensory neurons

Answer 13

detects internal and external stimuli. sends signal to CNS

Question 14

motor neurons

Answer 14

receives message from the CNS and responds to the stimuli

Question 15

presypnatic cell

Answer 15

cells that transmits chemical messages

Question 16

postsypnatic cel

Answer 16

receives information

Question 17

autonomic system

Answer 17

involuntary processes

Question 18

somatic system

Answer 18

voluntary processes

Question 19

sympathetic

Answer 19

regulates invokuntary processes. division of autonomic system