Which structure of the brain is a continuation of the spinal cord?

Which structure of the brain is a continuation of the spinal cord?

Which structure of the brain is a continuation of the spinal cord?

Medulla oblongata, also called medulla, the lowest part of the brain and the lowest portion of the brainstem. The medulla oblongata is connected by the pons to the midbrain and is continuous posteriorly with the spinal cord, with which it merges at the opening (foramen magnum) at the base of the skull.

What nerves extend from the spinal cord?

The spinal cord, which originates immediately below the brain stem, extends to the first lumbar vertebra (L1). Beyond L1 the spinal cord becomes the cauda equina (see below). The spinal cord provides a means of communication between the brain and peripheral nerves….Nerve Structures of the Spine.

BRAIN 12 Cranial Nerves
Motor/Sensory: 4 nerves

What is a neuron?

Neurons are information messengers. They use electrical impulses and chemical signals to transmit information between different areas of the brain, and between the brain and the rest of the nervous system.

What is the relationship between the brain and the spinal cord?

The part of the skull where the brain sits is called the cranium. The base, or lower part, of the brain is connected to the spinal cord. Together, the brain and spinal cord are known as the central nervous system (CNS). Many nerves send electrical signals to and from the brain and spinal cord.

What is the largest part of human brain?

The largest part of the brain, the cerebrum has two hemispheres (or halves). The cerebrum controls voluntary movement, speech, intelligence, memory, emotion, and sensory processing.

What are 2 functions of a neuron?

Neurons are programmed to do different things Sensory: Sensory neurons deliver electrical signals from the outer parts of the body — the glands, muscles, and skin — into the CNS. Motor: Motor neurons carry signals from the CNS to the outside parts of the body.

How long does a neuron live?

“Neurons do not have a fixed lifespan,” says Magrassi. “They may survive forever. It’s the body that contains them that die. If you put them in a longer-living body, they survive as long as the new body allows them to.

Is spinal cord a part of brain?

Which is the largest part of human body?

The largest internal organ (by mass) is the liver, with an average of 1.6 kilograms (3.5 pounds). The largest external organ, which is also the largest organ in general, is the skin.

What are the 3 types of the brain?

The Architecture of the Brain The brain can be divided into three basic units: the forebrain, the midbrain, and the hindbrain. The hindbrain includes the upper part of the spinal cord, the brain stem, and a wrinkled ball of tissue called the cerebellum (1).