Answer each Questions about either the Endocrine System or Nervous System as simply as possible

Nervous System

1.What is the name of the chemical messenger for the Nervous System ?

2a. How does the Nervous System transmit message throughout the body?

2b. How fast does this message move throughout the brain and body?

3.What organ is considered the control center of the Nervous System?

4.How does the Nervous System automatically control different functions of the body?

5.How does the Nervous System relate to the fight-or-flight response?

Endocrine System

1. What is the name of the chemical messenger for the Endocrine System ?

2a. How does the Endocrine System transmit message throughout the body?

2b. How fast does this message move throughout the brain and body?

3. What organ is considered the control center of the Endocrine System?

4. How does the Endocrine System automatically control different functions of the body?

5.How does the Endocrine System relate to the fight-or-flight response?

Nervous System

1.What is the name of the chemical messenger for the Nervous System ?

• Neurotransmitter

2a. How does the Nervous System transmit message throughout the body?

• Nervous System transmit message throughout the body through Neurons.
• The brain sends messages via the spinal cord to the body's peripheral nerves, which control the muscles and internal organs. The forebrain, midbrain, hindbrain, and spinal cord form the central nervous system (CNS), which is one of two great divisions of the nervous system as a whole.

2b. How fast does this message move throughout the brain and body?

• It can travel at speeds ranging from 70-120 meters per second (m/s) (156-270 miles per hour[mph])

3.What organ is considered the control center of the Nervous System?

• Spinal cord and Brain

4.How does the Nervous System automatically control different functions of the body?

• The pons and the medulla, along with the midbrain, are often called the brainstem. The brainstem takes in, sends out, and coordinates the brain's messages. It also controls many of the body's automatic functions, like breathing, heart rate, blood pressure, swallowing, digestion, and blinking.

5.How does the Nervous System relate to the fight-or-flight response?

• When the body is stressed, the SNS contributes to what is known as the "fight or flight" response. The body shifts its energy resources toward fighting off a life threat, or fleeing from an enemy. The SNS signals the adrenal glands to release hormones called adrenalin (epinephrine) and cortisol.

Step-by-step explanation

Neurotransmitters are often referred to as the body's chemical messengers. They are the molecules used by the nervous system to transmit messages between neurons, or from neurons to muscles.

NEURONS

The cell body directs all activities of the neuron. Dendrites extend out from the cell body and receive messages from other nerve cells. An axon is a long single fiber that transmits messages from the cell body to the dendrites of other neurons or to other body tissues, such as muscles.

In the human context, the signals carried by the large-diameter, myelinated neurons that link the spinal cord to the muscles can travel at speeds ranging from 70-120 meters per second (m/s) (156-270 miles per hour[mph]),