control and communication nervous control

Question 1

define the definition of the brain

Answer 1

the brain is an organ of the central nervous system if mammals where vital functions are coordinated

Question 2

what is the central nervous system?

Answer 2

central nervous system is the part of the nervous system made up of the brain and spinal cord

Question 3

what is the definition of cerebrum

Answer 3

part of the brain that controls balance and coordinate of movement

Question 4

define the cerebrum

Answer 4

large folded part of the brain that controls conscious thoughts, reasoning, memory and emotion

Question 5

define the effectors

Answer 5

effectors is the muscle or glands which makes the response in a reflex arc

Question 6

what is the electrical impulses

Answer 6

electrical impulses are the method of carrying messages along the neuron

Question 7

definition of gland

Answer 7

gland is a group of cells which can synthesise and release a substance such as a hormone

Question 8

define inter neuron

Answer 8

inter neuron was the nerve cell that transmits electrical impulses from sensory neurons to motor neurons within the CNS

Question 9

what is the definition of the medulla

Answer 9

medulla is the part of the brain controlling breathing and heart rate

Question 10

explain what a motor neuron is

Answer 10

a motor neuron is a nerve cell that carries electrical impulse from the CNS to effectors such as muscles or glands

Question 11

define nerves

Answer 11

nerves is a bundle of neurons that connect receptors to the CNS and the CNS to the effectors

Question 12

what is the definition of a neuron

Answer 12

neurons is the nerve cells that is specialised to transmit electrical impulses

Question 13

what is the definition of a sensory neuron

Answer 13

a sensory neuron is a nerve cell that transmits electrical impulses from a sense organ to the CNS

Question 14

define a receptor cell

Answer 14

receptor cells is a cell that can detect stimuli inside or outside the body

Question 15

definition of a reflex

Answer 15

reflex is a rapid action which protects the body from harm

Question 16

what is a reflex arc

Answer 16

reflex arc is the pathway of information from a sensory neuron through an inter neuron directly to a motor neuron

Question 17

explain the definition of a spinal cord

Answer 17

a spinal cords is a part of the central nervous system of a mammal that runs within its backbone

Question 17

explain the definition of a spinal cord

Answer 17

a spinal cords is a part of the central nervous system of a mammal that runs within its backbone

Question 18

explain the definition of a spinal cord

Answer 18

a spinal cords is a part of the central nervous system of a mammal that runs within its backbone

Question 19

define a stimuli

Answer 19

a stimuli is changes in the environment detected by receptor cells that trigger a response in an organ