What are 3 types of nerve cells? What is the role of the stomach in digestion?

Describe the job of the small intestine?

Describe how oxygen goes from the air to the cells in your body.

Image result for What are 3 types of nerve cells?

For the spinal cord though, we can say that there are three types of neurons: sensory, motor, and interneurons.

Sensory neurons. ...

Motor neurons. ...

Interneurons. ...

Neurons in the brain.

Explanation:

The small intestine carries out most of the digestive process, absorbing almost all of the nutrients you get from foods into your bloodstream. The walls of the small intestine make digestive juices, or enzymes, that work together with enzymes from the liver and pancreas to do this.

Image result for Describe how oxygen goes from the air to the cells in your body

Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body. ... Blood without oxygen returns through the veins, to the right side of your heart.

answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.

explanation: