Chapter 29

The central nervous system is consisted of the brain and the spinal cord. All information about the body is sent here and it coordinates and sends out signals to preform all activities of the body.

The peripheral nervous system is all of the nerves outside the brain and the spinal cord. Every nerve in it has connective tissue around its axons. It is divided into somatic and autonomic nervous system.

The somatic nervous system controls all the bod's skeletal muscles. It also sends and receives signals about what's going on internally and externally of the body.

Autonomic nervous system sends info to and from internal organs and glands. It is also didided up and made of two different neurons. The parasympathetic neuron encourages things like digestion and ordinary tasks. The sympathetic nervous is activated when a person is stressed.

Sensory neurons are usually the first place where information flows. They are activated when their receptors sense a stimulus and they will then transmit information to the internuerons.

Inetrnuerons bith receive and send information and signals to other neurons.

Motor neurons are nerve cells in the spinal cord that controls other muscles and their gland.

Neuromuscular Junction is a synapse between a muscle and a neuron. It is here where a motor neuron can send a signal to a fiber and cause and action like a contraction. Sent a long the axons.

Motor neurons realease Acetylcholine to bind to skeletal muscle in order to make a muscle contraction happen.

Released by the nervous system and the adrenal medulla and are known as flight or fight hormones. They are stress response and excitement.

A synapse is a place where axon terminals send neurotransmitters to send messages to other cells. This is how cells transmit messages and signals to one another.

White matter is myelinated axons that serve as a major point of communication for the brain. It affects learning nd brain functions and distributes action potentials. Grey matter is composed of axon terminals, dendrites, and neurological cells. It is a form of white matter and is involved in muscle control.

Outer grey matter of the cerebrum and is responsible for most complex behavior like making reasoned choices, concentrating on tasks planning for the future. It is also located in the parietal lobe of the brain. It involves sensation and perception and it also I volver sensory input with vision. There are many different lobes on the brain with the frontal lobe and it controls thought, reasoning, and behavior. Regulate and mediate internal functions and is behind forehead. The temporal lobe involves hearing and receives sensory neurons from the ears. The occipital allows for visual processing and cortex.

The lambic system is responsible for group of structures deep in the brain that function in expression of emotion. At the center of the brain is is where memories are.

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