The medulla has the ascending and the descending tract which function to link the brain with the spinal cord.
<h3>What is the role of medulla?</h3>
Medulla oblongata is the lowermost part of the brain.
It is located at the place where the brain and the spinal cord connect thus it carries nerve signals between the brain to spinal cord thus help the entire body to communicate.
It controls biological processes like blood pressure, breathing and heartbeat.
Ascending tract functions to carry sensory information from the body (e.g.: pain) from the spinal cord to the brain (upwards).
Descending tract carry motor information (e.g.: instructions to move the arm) from the brain down the spinal cord to the body (downward).
Damage to medulla can lead to respiratory failure, paralysis, or loss of sensation.
Selective breeding involves choosing parents with particular characteristics to breed together and produce offspring with more desirable characteristics. Humans have selectively bred plants and animals for thousands of years including: crop plants with better yields.
